DUAL-DOK 2200 Combined Lift & Leveler System Owners Manual

Transcription

1 To position for below dock endload, Push and release "RAISE" button. To store from below dock endload, Push and immediately release (pulse) "RAISE" button. Push and hold "MOMENTARY PAUSE" to pause any movement of platform and lip. Release to continue operation. Press "MANUAL/RESET" button to reset DUAL-DOK after a fault has been cleared at dock height. If a fault has been cleared below dock height, press "MANUAL/REST" button and corresponding manual function button to move unit to dock height. Outside light is on when LED flashes. Check outside lights is both LEDs are off. The outside light switch must be turned to RED to operate the system. Do not turn switch to GREEN unit loading/unloading is complete. Verify that the platform is at dock height and that no load is on platform. Push to Raise platform. Push both to extend lip. Release both to lower leveler onto trailer. MANUAL FUNCTIONS Leveler Raise: Disengage Pins Lip Extend: Extend Lip Auto-Lip: Unlock Velocity Fuse Lift Up: Raise Lift Lift Down: Lower Lift To change unit to Lift Mode, push and release "DOWN" button with no load on platform. Do not place load on plaftorm unless unit is in Lift Mode. When lift operations are complete, always return platform to dock height. Push and release leveler "RAISE" button to change unit to Leveler Mode. A pulsing horn indicates that the platform has been below dock for 15 minutes. ADDITIONAL WARNINGS AND INSTRUCTIONS ON SIDE OF ENCLOSURE 1. Do not operate leveler with anyone standing on or in front of leveler. 2. Do not operate in any mode with anyone standing under or in front of leveler. 3. Never enter a truck/trailer until its brakes are set, air has been dumped from air ride suspension (if applicable), and you have visually inspected to be sure truck/trailer is securely held in place by a vehicle restraint or wheel chock per OSHA regulations. MILWAUKEE, WISCONSIN Platform Lip Push to raise lift. Push to lower lift. In Auto-Lip mode, lip automatically extends whenever the "DOWN" button is pushed. To engage Auto-Lip, push and release "AUTO-LIP" button with platform at dock height. To cancel Auto-Lip, push and relase "AUTO-LIP" button with platform at dock height. COMBINED LIFT & LEVELER SYSYEM R R DUAL-DOK 2200 Combined Lift & Leveler System Owners Manual F1 F2 F3 F4 END LOADING LEVELER LEVELER RAISE LIFT UP LIFT AUTO-LIP MOMENTARY PAUSE LIP EXTEND LIFT DOWN MANUAL/RESET OUTSIDE LIGHT WARNING WARNING REV. MADE IN U.S.A. This Manual Covers DUAL-DOKs Built After Serial Numbers: C78008 and up PRINTED IN U.S.A. RITE-HITE PRINT SHOP PUBLICATION NO PART NUMBER: JANUARY 2010

2 NOTES 2 Pub. No January 2010

3 INTRODUCTION SAFETY WARNINGS SAFETY DEVICES OTHER IMPORTANT OPERATIONAL SAFETY WARNINGS OWNER RESPONSIBILITY INSTALLATION INSTRUCTIONS OPERATION INSTRUCTIONS MAINTENANCE PROCEDURES DUAL-DOK SYSTEM DIAGNOSTICS DUAL-DOK SYSTEM FAULT CODES DUAL-DOK SYSTEM RESET PROCEDURES GENERAL TROUBLESHOOTING HYDRAULIC SCHEMATIC ELECTRICAL SCHEMATICS LIMIT SWITCH ARM SETTINGS REPLACEMENT PARTS STANDARD WARRANTY BACK COVER INTRODUCTION Read this entire manual before installing any DUAL-DOK System. RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual TABLE OF CONTENTS The DUAL-DOK System by RITE-HITE is intended to provide a more efficient work place for workers in shipping and receiving dock areas. The DUAL-DOK System is a mechanical device that, when properly installed and operated, provides access between dock and truck in the Leveler Mode, as well as variable access from dock level through ground level in the Lift Mode. The interior and exterior lights, signs, horn, and message center provide instructions to the truck driver and DUAL-DOK System operator. PRODUCT SPECIFIC WARRANTY RITE-HITE warrants the DUAL-DOK System for five-years parts and one-year labor from date of shipment in accordance with Rite-Hite's Standard Warranty Policy. NOTICE TO USER Your local RITE-HITE representative provides a Planned Maintenance Program (P.M.P.) which can be fitted to your specific operation. Call your local representative or the RITE-HITE Corporation at The RITE-HITE products in this manual are covered by one or more of the following U.S. patents: 5,040,258; 5,271,183; 5,323,503; 5,375,965; 5,440,772; 5,442,825; 5,531,557; 5,546,623; 5,553,987; 5,582,498; 5,664,930; 5,702,223; 5,762,459 (RE: 37,570); 5,882,167; 5,964,572; 6,010,297; 6,052,268; 6,065,172; 6,070,283; 6,074,157; 6,085,375; 6,092,970; 6,106,212; 6,116,839; 6,190,109; 6,220,809; 6,238,163; 6,276,016; 6,311,352; 6,318,947; 6,322,310; 6,360,394; 6,368,043; 6,431,819; 6,488,464; 6,497,076; 6,499,169; 6,505,713; 6,524,053; 6,634,049; 6,654,976; 6,676,360; 6,726,432; 6,773,221; 6,832,403; 6,880,301; 6,892,411; 7,032,267; 7,062,814; 7,134,159; 7,213,285; 7,216,391; 7,363,670; 7,380,305 and pending U.S and foreign patent applications. RITE-HITE, LEVEL-RITE, THINMAN TM, SAFE-T-LIP, HYDRACHEK, WHEEL-LOK TM, DOK-LOK, DUAL-DOK, SAFE-T-STRUT TM, DOK-COMMANDER, JUMBO TM, HYDRA-RITE TM, SAFE-T-GATE, and SMOOTH TRANSITION DOK SYSTEM TM, are trademarks of RITE-HITE Corporation. Pub. No January

4 SAFETY WARNINGS When working with electrical or electronic controls, make sure that the power source has been locked out and tagged according to OSHA regulations and approved local electrical codes. DO NOT OPERATE X FIGURE 1 - LOCKOUT/TAGOUT LOCKOUT/TAGOUT PROCEDURES The Occupational Safety and Health Administration requires that, in addition to posting safety warnings and barricading the work area, the power supply has been locked in the OFF position or disconnected. It is mandatory that an approved lockout device is utilized. An example of a lockout device is illustrated. The proper lockout procedure requires that the person responsible for the repairs is the only person who has the ability to remove the lockout device. In addition to the lockout device, it is also a requirement to tag the power control in a manner that will clearly note that repairs are under way and state who is responsible for the lockout condition. Tagout devices have to be constructed and printed so that exposure to weather conditions or wet and damp locations will not cause the tag to deteriorate or become unreadable. RITE-HITE Corporation does not recommend any particular lockout device, but recommends the utilization of an OSHA approved device (refer to OSHA regulation ). RITE-HITE Corporation also recommends the review and implementation of an entire safety program for the Control of Hazardous Energy (Lockout/Tagout). These regulations are available through OSHA publication This is the highest level statement. Failure to follow the listed instructions will most likely result in severe injury or death. The statements used with this level of warning deal with a safe operating procedure. If the procedure is ignored, the possibility of personal injury may exist. This is a statement of serious hazard. Failure to follow the listed instructions could place the individual at risk of serious injury or death. IMPORTANT is used to draw attention to a procedure that needs to be followed to prevent machine or property damage. 4 Pub. No January 2010

5 SAFETY DEVICES Never be under the DUAL-DOK platform or lip without: SEE FIGS. 2 & 3 SEE FIG. 5 Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, SELECTOR VALVE ACTIVATION CHAIN SEE FIG. 4 Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, Turning off power to the control box, Locking out and tagging out the main power source, as shown under Safety Warnings on preceding page. TO ENGAGE SUPPORT LATCH 1. Bring platform to dock floor height. 2. Pull activation chain in an upward motion to lower support latch. 3. While holding the activation chain, press and hold Lift DOWN button until platform stops descending. 4. Disconnect electrical power to the control box and lockout/tagout per OSHA standards. Engaged TO DISENGAGE SUPPORT LATCH 1. Reconnect electrical power to the control box. 2. Bring platform to dock floor height by pressing the Lift UP button. 3. The support latch will automatically disengage. 4. Check lift operations to ensure proper disengagement. Disengaged SUPPORT LATCH ACTIVATION CHAIN PLATFORM SCISSOR FRAME CROSS MEMBER SUPPORT LATCH FIGURE 2 - ENGAGING SUPPORT LATCH FIGURE 3 - DISENGAGING SUPPORT LATCH Pub. No January

6 SAFETY DEVICES CONTINUED TO ENGAGE SELECTOR VALVE 1. Pull the selector valve out to prevent scissors movement. The activation chain is connected to the selector valve plunger. Engaged LIP SUPPORT The lip is extremely heavy. RITE-HITE does not recommend that one person attempt to lift the lip alone. To engage the lip support, press the MANUAL/ RESET button along with the LIP OUT button to extend the lip. Pull out the lip support bar as shown below. Turn off power and lockout/ tagout. PULL OUT To disengage the lip support, turn on the power, press the MANUAL/RESET button along with the LIP OUT button to re-extend the lip, push in the lip support bar, and press any button to release the lip. FIGURE 4 - ENGAGING SELECTOR VALVE TO ENGAGE LIP SUPPORT 1. If necessary, the lip can be supported by pulling out the lip support bar. PLATFORM LIP SUPPORT BAR FIGURE 5 - ENGAGING LIP SUPPORT 6 Pub. No January 2010

7 OTHER IMPORTANT OPERATIONAL SAFETY WARNINGS Never be under the DUAL-DOK platform or lip without: Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, If lip needs to be extended, follow procedures on page 6, Figure 5, Locking out and tagging out the main power source, as shown under Safety Warnings on page 4. Always barricade the DUAL-DOK at ground level and dock level from any form of traffic when maintenance is required. Before loading/unloading operations begin, secure the truck with wheel chocks or a vehicle restraint and turn the outside light selector switch to RED. See Figure 20. The LED will change from GREEN position to the RED. No controls will functions until the outside light has been changed to RED. Remove wheel chocks and/or restraint only when loading or unloading is complete. Before starting installation or maintenance, check and follow the safety procedures of the facility where the DUAL-DOK is being installed. In Leveler Mode, the DUAL-DOK should not be raised or lowered to an operating position with a load on the platform. When in Leveler Mode, pushing the RAISE button will perform a weight check. Operation will then continue. In Lift or Auto-lip Modes, the platform may be raised or lowered under a load. Always return the platform to dock height and change to Leveler Mode when loading has been completed. (A pulsing horn indicates that the platform has been below dock height for 15 minutes. Return lift to dock height or cancel by pressing Lift UP or DOWN buttons.) DO NOT operate in any mode with anyone under platform or in front of the lip. If a malfunction does occur, always call your authorized RITE-HITE service representative immediately. Pub. No January

8 OTHER IMPORTANT OPERATIONAL SAFETY WARNINGS There should be NO WEIGHT on the DUAL-DOK platform when the unit is not being operated. The DUAL-DOK system maintains a consistent dock level automatically. Additional weight on the platform (empty forklift, stack of pallets) can cause the system to display a fault condition. The rear pivot pins will engage automatically if the DUAL-DOK system is not operated for 5 minutes. Obstructing the pins could damage equipment or result in personal injury. Pressing the Lift UP button will reset the timer for an additional 5 minutes. Inspect the DUAL-DOK monthly to ensure that there are no broken or worn parts which could cause injury to personnel or damage to the equipment. 8 Pub. No January 2010

9 1. The owner should recognize the inherent danger of the interface between dock and transport vehicle. The owner should, therefore, train and instruct operators in the safe use of dock equipment in accordance with the information provided below. The manufacturer shall publish, provide to the initial purchaser, and make the following information readily available to owners: Installation instructions Recommended initial and periodic inspections procedures Maintenance procedures Operating instructions Descriptions or specifications for replaceable or repairable parts Tables identifying the grade (slope) for all variations of length or configuration of the dock equipment, and Information identifying the maximum uncontrolled drop encountered upon sudden removal of support while within the working range of the equipment. It shall be the responsibility of the owner to verify that the material listed in this section has been received and that it is made available for the instruction and training of presonnel entrusted with the use or maintenance of the dock equipment. 2. When a transport vehicle is parked at a loading dock, it is important that the vehicle is relatively perpendicular to the dock face and in close contact with at least one of the dock bumpers. 3. Nameplates, cautions, instructions, and posted warnings shall not be obscured from the view of operating or maintenance personnel for whom such warnings are intended. 4. Manufacturer s recommended periodic maintenance and inspection procedures in effect at date of shipment shall be followed, and written records of the performance of these procedures should be kept. OWNER RESPONSIBILITY 5. As with any piece of machinery, dock equipment requires routine maintenance, lubrication, and adjustments. Your local RITE-HITE representative offers owners the option of a Planned Maintenance Program (P.M.P.). As part of this service, your local RITE-HITE representative will do all routine maintenance, lubrication, and adjustments. 6. Dock equipment that is structurally damaged shall be removed from service, inspected by a manufacturer s authorized representative, and repaired as needed before being placed back in service. 7. The manufacturer shall make available replacement nameplates, caution/instruction labels, and operating/maintenance manuals upon request of the owner. The owner shall see that all nameplates, caution/instruction markings or labels are in place and legible, and that the appropriate operating/maintenance manuals are provided to users. 8. Modifications or alterations of dock equipment shall be made only with written permission of the original manufacturer. These changes shall also satisfy all safety recommendations of the original equipment manufacturer for the particular application of the dock equipment. 9. It is recommended that trailers equipped with air ride suspensions should remove the air from the suspension to minimize trailer bed drop, prior to loading or unloading. 10. When industrial trucks are driven on and off transport vehicles during the loading and unloading operation, the brakes on the transport vehicle shall be applied and wheel chocks or a positive restraining device shall be engaged. 11. In selecting dock equipment, it is important to consider not only present requirements but also future plans or adverse environments. Pub. No January

10 LEVELER END LOADING LEVELER RAISE To position for below dock endload, Push and release "RAISE" button. To store from below dock endload, Push and immediately release (pulse) "RAISE" button. PAUSE MOMENTARY Verify that the platform is at dock height and that no load is on platform. Push to Raise platform. Push and hold "MOMENTARY PAUSE" to pause any movement of platform and lip. Release to continue operation. Push both to extend lip. Release both to lower leveler onto trailer. MANUAL/RESET Press "MANUAL/RESET" button to reset DUAL-DOK after a fault has been cleared at MANUAL FUNCTIONS dock height. If a fault has been cleared below Leveler Raise: Disengage Pins dock height, press "MANUAL/REST" button and Lip Extend: Extend Lip corresponding manual function button to move Auto-Lip: Unlock Velocity Fuse unit to dock height. Lift Up: Raise Lift Lift Down: Lower Lift To change unit to Lift Mode, push and release "DOWN" button with no load on platform. Do not place load on plaftorm unless unit is in Lift Mode. When lift operations are complete, always return platform to dock height. Push and release leveler "RAISE" button to change unit to Leveler Mode. A pulsing horn indicates that the platform has been below dock for 15 minutes. OUTSIDE LIGHT Outside light is on when LED flashes. Check outside lights is both LEDs are off. The outside light switch must be turned to RED to operate the system. WARNING Do not turn switch to GREEN unit loading/unloading is complete. ADDITIONAL WARNINGS AND INSTRUCTIONS ON SIDE OF ENCLOSURE WARNING 1. Do not operate leveler with anyone standing on or in front of leveler. 2. Do not operate in any mode with anyone standing under or in front of leveler. 3. Never enter a truck/trailer until its brakes are set, air has been dumped from air ride suspension (if applicable), and you have visually inspected to be sure truck/trailer is securely held in place by a vehicle restraint or wheel chock per OSHA regulations. MILWAUKEE, WISCONSIN Platform LIP EXTEND Lip F1 F2 F3 F4 LIFT UP Push to raise lift. LIFT DOWN Push to lower lift. LIFT AUTO-LIP In Auto-Lip mode, lip automatically extends whenever the "DOWN" button is pushed. To engage Auto-Lip, push and release "AUTO-LIP" button with platform at dock height. To cancel Auto-Lip, push and relase "AUTO-LIP" button with platform at dock height. COMBINED LIFT & LEVELER SYSYEM R R REV. RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual INSTALLATION INSTRUCTIONS PRIOR TO INSTALLATION 1. Check the pit against installation drawings. IF THE PIT HAS NOT BEEN CORRECTLY CONSTRUCTED, DO NOT INSTALL THE DUAL- DOK SYSTEM! Contact RITE-HITE at Make sure the pit is clear of all debris. 3. Verify that three phase voltage (240V, 380V, 480V, or 575V) is available for installation. The voltage must match the tag on the motor wire bundle of the unit. 4. Leave the shipping bands in place on the DUAL- DOK unit until you are instructed to remove them. 5. Make sure that the pit water drain or sump pump is functional. 6. Make sure that the lifting unit, or picker crane, is DUAL-DOK WEIGHT CHART Model Size Capacity Weight Number Lift/Leveler DD x 12 16,000/E 7,300# DD x 8 10,000/E 5,100# DD x 10 16,000/E 6,100# capable of handling the weight of the DUAL-DOK unit in accordance with the DUAL-DOK weight chart. 7. Barricade the pit area at dock level and at ground level. 8. Make sure that you have the components shown in Figure 6 as well as the following necessary equipment to preform a successful installation. Welding Equipment 7081 Low Hydrogen Welding Rods Bottle Jack, Sissor Jack, or Portapower Cutting Torch Grinder General Hand Tools; wire cutters, wire stripers, snap-ring pliers, allen wrenches, combination wrenches, 24 level, screw drivers, Wire ties Metal Shim Stock As Required RITE-HITE Gray Spray Paint Hammer Drill Bolt Anchors (3/4 x 6 ) (16) Stud Anchors (3/4 x 6 ) (6) Bolt Anchors (3/8 x 2-1/4 ) (10) Concrete Drill Bits Electric Multimeter Pry Bar Lockout/Tagout Equipment CAUTION SIGN OUTSIDE LIGHT BOX REVERSE LETTER CAUTION SIGN BUMPER (2) PIVOT BLOCK (2) SLIDE CHANNELS OPEN PIT WARNING SIGN BRUSH SEALS CONTROL BOX PENDANT STATION BRACKET (WITH FOAM TAPE) TOE PROTECTOR (2) FIGURE 6 - SUPPLIED COMPONENTS 10 Pub. No January 2010

11 INSTALLATION AND LEVELING RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual INSTALLATION INSTRUCTIONS CONTINUED Before starting installation or maintenance, check and follow the safety procedures of the facility where the DUAL-DOK is being installed. Barricade and post warning signs around DUAL-DOK work areas, at ground level and dock level, to prevent unauthorized entry or use. DO NOT remove shipping bands until unit is properly centered and positioned in the pit. 3. Use the lifting unit to place the DUAL-DOK unit into the pit. 4. Once the unit is properly centered and positioned in the pit, remove the shipping bands. See Figure 7 for a general side and top view of the DUAL-DOK system. 1. Remove the wire bundles from the unit and route as shown, prior to setting unit in the pit. See Figure Route lifting chains and hook unit as shown in Figure 8. BACK OF UNIT PLATFORM SUPPORT LATCH FRONT OF UNIT LANYARD CUP FOR SUPPORT LATCH TOP VIEW LIP SCISSOR FRAME MOTOR HARNESS CONTROL BUNDLE BELLOWS DOCK HEIGHT SENSOR MOUNTING PLATE BASE FRAME AUXILIARY PUMP PLUG FIGURE 7 - SIDE AND TOP VIEWS Pub. No January

12 INSTALLATION INSTRUCTIONS CONTINUED SUGGESTED LIFTING CHAIN ROUTE SHIPPING BANDS MUST BE SECURE WHEN LIFTING UNIT (4 PLACES). HOOK BACK OVER CHAIN ROUTING OF WIRE BUNDLES DURING INSTALLATION (MUST BE BEHIND CHAIN WHEN LIFTING) SUGGESTED LIFTING CHAIN ROUTE DETAIL - REAR HOOK-UP FIGURE 8 - LIFTING DETAIL DETAIL - FRONT HOOK-UP TEMPORARY ELECTRICAL INSTALLATION Three phase power 240V, 380V, 480V, or 575V) with a disconnect must be available near the dock door. Verify the voltage of the disconnect with the tag on the motor harness. Incoming power and motor voltage must match. 1. Connect the wire bundles to the control box. See Figure 9. Set control box on concrete next to platform. NOTE: The outside light selector switch must be turned to the outside red position for any button to operate. 2. Turn power on and wait for the display to come on line (approximately 30 seconds). Push the MANUAL OPERATION/RESET button along with the Lift UP button and hold until the lift stops automatically or the platform is at floor level. DO NOT operate unit in Leveler Mode until pivot blocks have been installed. The rear pivot pins will engage automatically if the DUAL-DOK system is not operated for 5 minutes. Obstructing the pins could damage equipment or result in personal injury. Pressing the Lift UP button will reset the timer for an additional 5 minutes. Watch the wire bundles. Movement of the DUAL-DOK system may cause the wire bundles to slip off the unit and fall into the pit, or to become caught in the scissors lift. 3. If the motor runs but the unit does not rise after ten seconds, the motor is running backwards. Turn the power off and reverse motor wires T1 and T3 in the control box. 12 Pub. No January 2010

13 LEVELER END LOADING LEVELER RAISE To position for below dock endload, Push and release "RAISE" button. To store from below dock endload, Push and immediately release (pulse) "RAISE" button. PAUSE MOMENTARY Push and hold "MOMENTARY PAUSE" to pause any movement of platform and lip. Release to continue operation. MANUAL/RESET Press "MANUAL/RESET" button to reset DUAL-DOK after a fault has been cleared at MANUAL FUNCTIONS dock height. If a fault has been cleared below Leveler Raise: Disengage Pins dock height, press "MANUAL/REST" button and Lip Extend: Extend Lip corresponding manual function button to move Auto-Lip: Unlock Velocity Fuse unit to dock height. Lift Up: Raise Lift Lift Down: Lower Lift To change unit to Lift Mode, push and release "DOWN" button with no load on platform. Do not place load on plaftorm unless unit is in Lift Mode. When lift operations are complete, always return platform to dock height. Push and release leveler "RAISE" button to change unit to Leveler Mode. A pulsing horn indicates that the platform has been below dock for 15 minutes. OUTSIDE LIGHT Outside light is on when LED flashes. Check outside lights is both LEDs are off. The outside light switch must be turned to RED to operate the system. WARNING Do not turn switch to GREEN unit loading/unloading is complete. ADDITIONAL WARNINGS AND INSTRUCTIONS ON SIDE OF ENCLOSURE WARNING 1. Do not operate leveler with anyone standing on or in front of leveler. 2. Do not operate in any mode with anyone standing under or in front of leveler. 3. Never enter a truck/trailer until its brakes are set, air has been dumped from air ride suspension (if applicable), and you have visually inspected to be sure truck/trailer is securely held in place by a vehicle restraint or wheel chock per OSHA regulations. MILWAUKEE, WISCONSIN Platform Verify that the platform is at dock height and that no load is on platform. Push to Raise platform. LIP EXTEND Lip Push both to extend lip. Release both to lower leveler onto trailer. F1 F2 F3 F4 LIFT UP Push to raise lift. LIFT DOWN Push to lower lift. LIFT AUTO-LIP COMBINED LIFT & LEVELER SYSYEM R R REV. 4. When the platform has been raised to dock height, verify that the safety devices have been activated, as described in the following Danger. Never be under the DUAL-DOK platform or lip without: Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, If lip needs to be extended, follow procedures on page 6, Figure 5, Turning off power to the control box, Locking out and tagging out the main power source, as shown under Safety Warnings on page 4. RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual INSTALLATION INSTRUCTIONS CONTINUED 5. With the power off, locked out and tagged out, remove the front guard bellows. See Figure 7. Keep cotter pins for reinstallation of bellows. 6. Loosen the jam nuts and actuator block of the dock height sensor (located on the left-hand lift cylinder). See Figure 13. Slide the actuator block to the lower end of the threaded actuator rod (approximately one inch to the left, as shown in Figure 13). Tighten the block with jam nuts temporarily. 7. If the platform needs to be centered, continue with Centering Instructions. See Figure 10. INCOMING POWER 1L1 1L2 1L3 INCOMING POWER TO THIS POINT OT32E3 TEMPORARY POWER FROM CUSTOMER FUSED DISCONNECT (BY OTHERS) 7/8" BACK OF PIT FRONT OF PIT WITH ROTARY DISCONNECT In Auto-Lip mode, lip automatically extends whenever the "DOWN" button is pushed. To engage Auto-Lip, push and release "AUTO-LIP" button with platform at dock height. To cancel Auto-Lip, push and relase "AUTO-LIP" button with platform at dock height. INCOMING POWER 1L1 1L2 1L3 INCOMING POWER TO THIS POINT WITH OUT ROTARY DISCONNECT NOTE: SEE FIGURE 18 FOR CONTROL BOX TERMINAL BLOCK DETAIL T1 T2 T3 MOTOR POWER WIRE BUNDLES FROM UNIT JUNCTION BOX AND MOTOR HARNESS (BY RITE-HITE) FIGURE 9 - TEMPORARY ELECTRICAL INSTALLATION PIT OPENING AT DOCK LEVEL Pub. No January

14 LEVELER END LOADING LEVELER RAISE To position for below dock endload, Push and release "RAISE" button. To store from below dock endload, Push and immediately release (pulse) "RAISE" button. PAUSE MOMENTARY Push and hold "MOMENTARY PAUSE" to pause any movement of platform and lip. Release to continue operation. Verify that the platform is at dock height and that no load is on platform. Push to Raise platform. MANUAL/RESET Press "MANUAL/RESET" button to reset DUAL-DOK after a fault has been cleared at MANUAL FUNCTIONS dock height. If a fault has been cleared below Leveler Raise: Disengage Pins dock height, press "MANUAL/REST" button and Lip Extend: Extend Lip corresponding manual function button to move Auto-Lip: Unlock Velocity Fuse unit to dock height. Lift Up: Raise Lift Lift Down: Lower Lift Push both to extend lip. Release both to lower leveler onto trailer. Push to raise lift. Push to lower lift. To change unit to Lift Mode, push and release "DOWN" button with no load on platform. Do not place load on plaftorm unless unit is in Lift Mode. When lift operations are complete, always return platform to dock height. Push and release leveler "RAISE" button to change unit to Leveler Mode. A pulsing horn indicates that the platform has been below dock for 15 minutes. OUTSIDE LIGHT Outside light is on when LED flashes. Check outside lights is both LEDs are off. The outside light switch must be turned to RED to operate the system. WARNING Do not turn switch to GREEN unit loading/unloading is complete. ADDITIONAL WARNINGS AND INSTRUCTIONS ON SIDE OF ENCLOSURE WARNING 1. Do not operate leveler with anyone standing on or in front of leveler. 2. Do not operate in any mode with anyone standing under or in front of leveler. 3. Never enter a truck/trailer until its brakes are set, air has been dumped from air ride suspension (if applicable), and you have visually inspected to be sure truck/trailer is securely held in place by a vehicle restraint or wheel chock per OSHA regulations. MILWAUKEE, WISCONSIN Platform LIP EXTEND Lip F1 F2 F3 F4 LIFT UP LIFT DOWN LIFT AUTO-LIP COMBINED LIFT & LEVELER SYSYEM R R REV. RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual INSTALLATION INSTRUCTIONS CONTINUED CENTERING INSTRUCTIONS 1. By moving the base frame only (shown in Figure 7), center the unit at dock level according to the spacing measurements given on Figure Move the wire bundles between the rear wall and the deck before cycling the DUAL-DOK system. NOTE: The wire bundles must be tightly held while cycling the unit in the Lift Mode. Watch the wire bundles for pinching between the rear wall and the rear of the DUAL-DOK platform. Keep the wire bundles away from rear pins at all times! 3. Run the unit in Lift Mode by pressing the Lift UP or DOWN buttons several times. Watch for proper clearance along the sides and back. The deck may shift during this procedure. 4. Adjust the gap if necessary. Follow Step 1of the Centering Instructions if adjusting the gap becomes difficult. Check masonry work. 5. Turn power off. Engage the safety devices as described in the following Danger. 6. Verify that the base frame is level. See Figure 11. Never be under the DUAL-DOK platform or lip without: Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, If lip needs to be extended, follow procedures on page 6, Figure 5, Turning off power to the control box, Locking out and tagging out the main power source, as shown under Safety Warnings on page 4. 1" GAP TYPICAL EACH SIDE NOT TO BE LESS THAN 11/16" FOR CLEARANCE OF NB-1 SEALS 7/8" MINIMUM DISTANCE AT ANY GIVEN POINT BETWEEN WALL AND THE READ OF DECK BACK OF PIT FRONT OF PIT In Auto-Lip mode, lip automatically extends whenever the "DOWN" button is pushed. To engage Auto-Lip, push and release "AUTO-LIP" button with platform at dock height. To cancel Auto-Lip, push and relase "AUTO-LIP" button with platform at dock height. PIT OPENING AT DOCK LEVEL FIGURE 10 - CENTERING DETAIL 14 Pub. No January 2010

15 INSTALLATION INSTRUCTIONS CONTINUED TYP. (2) 1/4" 12" SIDE OF PIT BASE FRAME ASSEMBLY 1/4" 4" TYP. (2) TYP. (2) 1/4" 12" DRAIN 1/4" 10" TYP. (2) 3/4" ELECTRICAL CONDUIT FOR HIGH VOLTAGE BACK OF PIT REAR SHIM 14" x 14" (IF REQUIRED) ROLLER BAR FRONT OF PIT REAR PIN PLATES 3/4" ELECTRICAL CONDUIT 1 FOR CONTROL SYSTEM FRONT SHIM 8" x 19" (IF REQUIRED) FLOOR MOUNTING PLATES FOR CLARITY, DIAGRAM ONLY SHOWS BASE FRAME AND PIT. 24" LEVEL MUST BE PLACED ON FRONT CROSS MEMBER FRONT PIT OPENING NOTE: IF SHIMMING IS REQUIRED, POSITION SHIMS BENEATH ROLLER BARS AND REAR PIN PLATES. WELD 1/4" FILLET ON ALL EXPOSED EDGES. ROLLER FRONT BASE ANGLE DETAIL-A NOTE: CRITICAL AREA! THE FRAME MUST BE LEVEL! FIGURE 11 - CENTERING AND LEVELING DETAIL 8. Disengage the following safety devices: a. Push in the selector valve, b. Turn on power, Ground the welder to the BASE FRAME ONLY. 7. Weld the base frame to the pit floor according to Figure 11. Use 7018 low hydrogen welding rod. c. Disengage the support latch by returning the platform to dock height by pressing and holding the Lift UP and MANUAL/RESET buttons. The support latch will automatically disengage. Pub. No January

16 INSTALLATION INSTRUCTIONS CONTINUED 12A (PREFERRED) INSTALLING BRUSH SEAL TO THE SIDE OF THE PLATFORM. ''A'' ''A'' (4) BRUSH SEALS #56518 SLIDE INTO CHANNELS NOTE: (2) ON EACH SIDE.25 TYP (2) REF (2) REF. NOTE: (1)EACH PER SIDE.5 (7) EQUALLY SPACED SECTION ''A-A'' INSTALLING REAR BRUSH SEAL (4) ON PIN PIVOT BLOCKS.12.5 (5) EQUALLY SPACED (OPTIONAL) INSTALLING BRUSH SEALS TO THE SIDE OF THE CURB STEEL ON THE DUAL-DOK PIT. (4) BRUSH SEALS #56518 SLIDE INTO CHANNELS NOTE: (2) ON EACH SIDE.12.5 (7) EQUALLY SPACED (2) REF (2) REF. NOTE: (1)EACH PER SIDE DETAIL - REAR SEAL CHANNEL 12B 6.5' & 7' WIDE UNITS 7.5'+ WIDE UNITS CHANNEL BUMPER AND WEATHERSEAL INSTALLATION BRUSH SEAL Run the platform above dock height to install the weatherseal. Press the Lift UP button to raise the DUAL-DOK platform to above dock height. 2. Disconnect power to the control box and lockout/tagout the main power source. 3. Mount bumpers as shown in Figure Install side brush seal accordingto Figure 12A. 12C FIGURE 12 - WEATHERSEAL INSTALLATION NOTE: THIS METHOD IS OPTIONAL. IT MAY ONLY BE USED WHEN PIT WALLS ARE CONSTRUCTED UNEVENLY! 6. If side channels are unable to be welded according to Figure 12A then weld side channels into position according to Figure 12C. 7. Weld the rear channel into position. See Figure 12B. 8. After bumpers and weatherseal have been properly installed, conrtinue with Dock Height Sensor Adjustment. See Figure Turn power on. Ground the welder to the platform assembly. 5. Weld the side channels into position. See Figure 12A. This location for the side brush seal is preferred. The rear pivot pins will engage automatically if the DUAL-DOK system is not operated for 5 minutes. Obstructing the pins could damage equipment or result in personal injury. Pressing the Lift UP button will reset the timer for an additional 5 minutes. 16 Pub. No January 2010

17 DOCK HEIGHT SENSON ADJUSTMENT 1. Engage the safety devices as described in the following Danger. Never be under the DUAL-DOK platform or lip without: Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, If lip needs to be extended, follow procedures on page 6, Figure 5, Turning off power to the control box, Locking out and tagging out the main power source, as shown under Safety Warnings on page Turn off power and lockout/tagout the control box. LOWER END S-HOOK RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual INSTALLATION INSTRUCTIONS CONTINUED JAM NUTS UPPER END GUIDE ROD THREADED ACTUATOR ROD 4. Carefully cut the shipping tape holding the selector valve chain to the hydraulic hoses. The bent S-hook (lower left) end of the selector valve chain must be connecteded to the actuator rod. Remove the lower jam nut and spacer from the actuator rod, slide the S-hook onto the threaded actuator rod and reinstall the spacer and jam nut. Fully tighten the jam nut. 5. The floating ring and S-hook located on the selector valve chain must be attached to the anchor loop located underneath the main pivot cross member. See Figure 14, Detail 14B. 6. The pull ring (top) end of the chain must be pulled upwards to the quick disconnect cup. Make sure that the selector valve chain is routed behind the cross tube. See Figure 14, Detail 14A. The pull ring stores around the quick disconnect with the plastic wire tie pointing upwards into the cup. See Figure 14, Detail 14A. DO NOT cut the wire tie, this will be used to access the pull ring. 7. Disengage the following safety devices. a. Push in the selector valve, b. Turn on power, c. Disengage the support latch by returning the platform to dock height by pressing and holding the Lift UP and MANUAL/RESET buttons. The support latch will automatically disengage. 8. The actuator block has been correctly adjusted when E0202 LED(light emitting diode) on the PLC is illuminated, the platform is at dock height, and the rear pins engage and disengage smoothly. (Pivot blocks may not be installed yet!) 9. Run unit down to driveway level and back to dock level. Check that platform stops automatically at dock level. 10. If the platform does not stop at dock level, repeat steps 1, 2, 3, 7, 8, and 9 until the desired platform height is reached. ACTUATOR BLOCK SPACERS SELECTOR VALVE CHAIN SHOULD BE TAUGHT AT DOCK HEIGHT FIGURE 13 - DOCK HEIGHT SENSOR DETAIL 3. See Figure 13. Loosen jam nuts on the actuator rod to adjust the actuator block. Lowering the actuator block allows the unit to rise higher. Raising the actuator block reduces the height that the unit can rise. Pub. No January

18 INSTALLATION INSTRUCTIONS CONTINUED DETAIL-14A SELECTOR VALVE ACTIVATION CHAIN DETAIL-14B PLATFORM REMOVABLE PLUG WIRE TIE WIRE TIE AUX. POWER CUP SELECTOR VALVE ACTIVATION CHAIN MALE QUICK DISCONNECT FLOATING RING & S-HOOK PULL RING ANCHOR LOOP MAIN PIVOT CROSS MEMBER CROSS TUBE DETAIL-14A DETAIL-14B FIGURE 14 - SELECTOR VALVE CHAIN PIVOT BLOCK INSTALLATION 4. Extend the pins into the pivot blocks, press and release the Leveler RAISE button. 5. Turn power off and lockout/tagout the control box. The rear pivot pins will engage automatically if the DUAL-DOK system is not operated for 5 minutes. Obstructing the pins could damage equipment or result in personal injury. Pressing the Lift UP button will reset the timer for an additional 5 minutes. 1. Weld a piece of scrap metal, approximately 6 long, to the top of each pivot block. See Figure 15A. 2. Verify that the rear pins are retracted. 3. Place the pivot blocks in the corners at the rear of the pit. Align the hinge pins with the pivot block holes according to Figure 15C. Ground the welder to curb steel. 6. Center the pivot blocks and tack weld the blocks into place. Remove the pieces of scrap metal. 7. Turn power on. 8. With the DUAL-DOK system in the Lift Mode, lower the unit about 12 and then return to dock height. 18 Pub. No January 2010

19 INSTALLATION INSTRUCTIONS CONTINUED IMPORTANT: Position Pivot Block With Chamfer Facing Rear Hinge Pin Pivot Block (Supplied) 6" Ref. 1/4" Ref. Tack 1/4" 2 Sides Typ. Tack 1/4" 5/16" Ground Welder To Curb Steel Only Dock Chamfer Dock Level Tack Drop Off Material 5/16" 1/8" Typ. 4 Sides Typ. Toe Protector (Supplied) 15A Rear Hinge Pin 15B NOTE: Use Low Hydrogen Weldrod 3/8" Dia. Concrete Fasteners 5 Places Typ. (By Others). Weld Pivot Block Fully Before Installing Toe Protector. Side Pit Wall 1/4" Tack Bearing Blocks May Have To Be Shimmed Due To Pit Not Being Square 15C Back Pit Wall FIGURE 15 - PIVOT BLOCK INSTALLATION DETAIL 9. Cycle pins in and out several times to check for clearance between the pins and the pivot blocks. To extend the pins, press and release the Leveler RAISE button. To retract the pins, press and release the Lift DOWN button. If pins do not smoothly cycle in and out of the pivot blocks, remove the pivot blocks and begin again at step Lower the unit all the way down by pressing the Lift DOWN button. 11. Turn power off and lockout/tagout the control box. Cover any exposed weatherseal and the pivot pins with flame resardant material. 12. Weld pivot blocks as shown in Figure 15B. 13. Install toe protectors as shown in Figure 15B. 14. Touch up pivot blocks and curb steel with RITE- HITE gray spray paint. Disconnect and remove all welding equipment. 15. Turn power on and raise the platform to dock height. 16. Engage the safety devices as described in the following Danger. 17. Install lower fasteners on toe protectors from underneath unit. See Figure 15B. Never be under the DUAL-DOK platform or lip without: Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, If lip needs to be extended, follow procedures on page 6, Figure 5, Turning off power to the control box, Locking out and tagging out the main power source, as shown under Safety Warnings on page 4. Pub. No January

20 LEVELER END LOADING LEVELER RAISE To position for below dock endload, Push and release "RAISE" button. To store from below dock endload, Push and immediately release (pulse) "RAISE" button. PAUSE MOMENTARY Push and hold "MOMENTARY PAUSE" to pause any movement of platform and lip. Release to continue operation. MANUAL/RESET Press "MANUAL/RESET" button to reset DUAL-DOK after a fault has been cleared at MANUAL FUNCTIONS dock height. If a fault has been cleared below Leveler Raise: Disengage Pins dock height, press "MANUAL/REST" button and Lip Extend: Extend Lip corresponding manual function button to move Auto-Lip: Unlock Velocity Fuse unit to dock height. Lift Up: Raise Lift Lift Down: Lower Lift To change unit to Lift Mode, push and release "DOWN" button with no load on platform. Do not place load on plaftorm unless unit is in Lift Mode. When lift operations are complete, always return platform to dock height. Push and release leveler "RAISE" button to change unit to Leveler Mode. A pulsing horn indicates that the platform has been below dock for 15 minutes. OUTSIDE LIGHT Outside light is on when LED flashes. Check outside lights is both LEDs are off. The outside light switch must be turned to RED to operate the system. WARNING Do not turn switch to GREEN unit loading/unloading is complete. ADDITIONAL WARNINGS AND INSTRUCTIONS ON SIDE OF ENCLOSURE WARNING 1. Do not operate leveler with anyone standing on or in front of leveler. 2. Do not operate in any mode with anyone standing under or in front of leveler. 3. Never enter a truck/trailer until its brakes are set, air has been dumped from air ride suspension (if applicable), and you have visually inspected to be sure truck/trailer is securely held in place by a vehicle restraint or wheel chock per OSHA regulations. MILWAUKEE, WISCONSIN Platform Verify that the platform is at dock height and that no load is on platform. Push to Raise platform. LIP EXTEND Lip Push both to extend lip. Release both to lower leveler onto trailer. F1 F2 F3 F4 LIFT UP Push to raise lift. LIFT DOWN Push to lower lift. LIFT AUTO-LIP COMBINED LIFT & LEVELER SYSYEM R R REV. RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual INSTALLATION INSTRUCTIONS CONTINUED OUTSIDE LIGHT BOX DISCONNECT (SUPPLIED BY OTHERS) OPEN PIT WARNING SIGN ON 3/4 DIA. x 6" LG. STUD ANCHOR (6) PLACES TYP. (BY OTHERS) 1/4" TYP. (2) REVERSE LETTER CATION SIGN 1/4" 1/4" 15" 18" 96" 8" OFF 6-1/2" REF. 20" REF. 18" REF. In Auto-Lip mode, lip automatically extends whenever the "DOWN" button is pushed. To engage Auto-Lip, push and release "AUTO-LIP" button with platform at dock height. To cancel Auto-Lip, push and relase "AUTO-LIP" button with platform at dock height. 3" DOORWAY OPENING CONTROL BOX PENDANT STATION BRACKET BUMPER (2) 66" 16" 46" TRUCK GRADE CAUTION SIGN CONDUIT SHOULD BE ROUTED TO TOP OR BOTTOM OF CONTROL BOX DOCK FLOOR OUTSIDE OF BUILDING ALL DIMS. RECOMMENDED UNLESS NOTED BY REF. INSIDE OF BUILDING ALL DIMS. RECOMMENDED UNLESS NOTED BY REF. FINAL WIRING PROCEDURES 1. Verify that the safety devices have been engaged and described in the following Danger. FIGURE 16 - COMPONENT MOUNTING DETAIL Ground the welder to curb steel. Never be under the DUAL-DOK platform or lip without: Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, If lip needs to be extended, follow procedures on page 6, Figure 5, Turning off power to the control box, Locking out and tagging out the main power source, as shown under Safety Warnings on page Turn off power to the control box and lockout/tagout the control box. Disconnect the wire bundle from the control box and store under the unit. 3. Mount the control box and outside light box according to the recommended dimensions in Figure 16. An electrician will connect outside light box, control box and do final wiring. 4. Verify that both 3/4 conduit stubs in rear pit wall pocket are cut off evenly with rear pit wall. See Figure Attach a 3/4 flexible liquid tight straight fitting (supplied by others) to each conduit stub in the rear pit wall. 6. Pull each wire bundle through a conduit stub from the pit to the control box. See Figures 16 and Secure each 3/4 flexible liquid tight conduit to the 3/4 liquid tight straight fitting. 20 Pub. No January 2010

21 INSTALLATION INSTRUCTIONS CONTINUED REAR PIT WALL FRACTIONAL DIMENSIONS TO BE ±1/4" JUNCTION BOX DRAIN 3/4" ELECTRICAL CONDUIT (2) 1 FOR HIGH VOLTAGE 1 FOR CONTROL SYSTEM FIGURE 17 - CONDUIT ASSEMBLY DETAIL To Outside Signal Light To Lower Junction Box To Pendant Outside Light Common Outside Red Signal Light Outside Green Signal Light Solenoid Common 1 Lift Up Solenoid Platform/Lip Solenoid Solenoid Common 2 Lift Down Solenoid Auto-Lip Solenoid Solenoid Common 3 Lip Out Solenoid Pin Disengage Solenoid Limit Switch Power Pins Disengaged Limit Switch Pins Engaged Limit Switch At Dock Height Limit Switch Below Dock Height Limit Switch Platform Separation Limit Switch Scissors Separated Limit Switch Lip Extended Limit Switch Lip Retracted Limit Switch Platform Level Limit Switch Float Switch Pendant Power Pendant Lift Up Push Button Pendant Lift Down Push Button To Overhead Door ITL Overhead Door ITL Power Limit Switch/Operator Overhead Door ITL Input To Manual Gate At Manual Gate Closed ITL Power Rear Of Dual-Dok Manual Gate Closed ITL Input Green Light ITL Power To Vehicle Restraint CB Green Light ITL Input To Vehicle Leveler Stored ITL Dry Contact - In Restraint CB Leveler Storded ITL Dry Contact - Out X2 OSR OSG X2 A0200 A0201 X2 A0202 A0203 X2 A0204 A VDC E0200 E0201 E0202 E0203 E0204 E0205 E0206 E0207 E0208 E VDC E6204 E VDC E VDC E VDC E6502 A6500A A6500B NOTE: Remove Factory Installed Jumpers FIGURE 18 - CONTROL BOX LOWER TERMINAL BLOCK DETAIL Pub. No January

22 DI FUSED CT RITE-HITE Dual-Dok Combined Lift & Leveler System Owner s Manual INSTALLATION INSTRUCTIONS CONTINUED 8. Wire the DUAL-DOK system and the outside light box to the lower terminal block in the control box according to the field wiring diagram. See Figure 18 & 19. If wires must be cut to a shorter length, PLEASE relabel all wires with wire relabel sheet provided in control box. 9. Disengage the following safety devices: a. Push in the selector valve, b. Turn on power, c. Disengage the support latch by returning the platform to dock height by pressing and holding the Lift UP and MANUAL/RESET buttons. The support latch will automatically disengage. 10. If the motor runs but the unit does not rise after ten seconds, the motor is running backwards. Turn the power off and reverse motor wires T1 and T3 in the control box. 11. Engage the safety devices, as described in the following Danger. 12. Install the bellows to the platform and insert cotter pins. See Figure Disengage the following safety devices: a. Push in the selector valve, b. Turn on power, c. Disengage the support latch by returning the platform to dock height by pressing and holding the Lift UP and MANUAL/RESET buttons. The support latch will automatically disengage. 14. Complete installation by testing operation. See Operating Instructions in this manual. OVERHEAD DOOR LIMIT SWITCH (IF REQUIRED, SEE NOTE 6) IF FUSED DISCONNECT NOT PROVIDED BY RITE-HITE PRODUCTS CORPORATION, POWER UNIT FUSED DISCONNECT MUST BE PROVIDED BY OTHERS AND INSTALLED PER UL508A AND NEC ARTICLE 430 SECTION J REQUIREMENTS. TO CUSTOMER LOAD CENTER DUAL-DOK CONTROL BOX Never be under the DUAL-DOK platform or lip without: Engaging the support latch by pulling the activation chain and pressing and holding the Lift DOWN button until the platform stops decending as shown in Figure 2, Pulling the selector valve activation chain out to prevent scissors movement as shown in Figure 4, If lip needs to be extended, follow procedures on page 6, Figure 5, Turning off power to the control box, Locking out and tagging out the main power source, as shown under Safety Warnings on page 4. SOLENOID HARNESSES (SEE NOTE 5) LOWER JUNCTION BOX SOLENOIDS (24VAC) MOTOR HARNESS (SEE NOTE 5) CONTROL HARNESS (SEE NOTE 5) LIMIT SWITCHES (24VDC) NOTES: 1. WIRE PER LOCAL ELECTRICAL CODES. 1" CONDUIT MAY BE REQUIRED. 2. REFER ALL INSTALLATION AND SERVICE TO QUALIFIED PERSONNEL. 3. FOR NON-METALLIC ENCLOSURES, USE GROUNDING BUSHINGS ON ALL CONDUIT ENTERING THE CONTROL BOX. INSTALL PER MANUFACTURER'S SPECIFICATIONS. USE 8AWG GREEN COPPER WIRE, 65 /75 C MINIMUM TO GROUND. BUSHINGS IN ENCLOSURES WHERE MULTIPLE CONDUIT ENTRANCES ARE REQUIRED. 4. FOR FIELD WIRING SIZE AND COLOR REQUIREMENTS AND POWER UNIT WIRING, SEE SPECIFIC ELECTRICAL SCHEMATIC SUPPLIED WITH CONTROL BOX. 5. HARNESSES PROVIDED BY RITE-HITE AND FACTORY WIRED TO THE MOTOR AND PIT J-BOX. 6. SEE SPECIFIC ELECTRICAL SCHEMATIC TO IDENTIFY ALL OPTIONS INCLUDED AND WIRING REQUIRED FOR THIS SYSTEM. FIGURE 19 - ELECTRICAL WIRING 22 Pub. No January 2010