Lippert Components Happijac Installation Manual
Lippert Components Happijac Installation Manual

Lippert Components Happijac Installation Manual

Bed lift
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Happijac
Bed Lift
OEM INSTALLATION MANUAL
®

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Summary of Contents for Lippert Components Happijac

  • Page 1 Happijac Bed Lift OEM INSTALLATION MANUAL ®...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS System Information Safety Preparation Resources Required Pre-Installation Installation Motor and Connecting Shaft Wiring the System Wiring Diagram Relay Control Module Testing the System Trolley Travel Bed Lift Operation Motor and Brake Limit Switches - Microswitches Bed Lift Control Switch - LCI-Supplied Switch Only Relocating Limit Switches Manual Operation Manually Raise the Bed(s)
  • Page 3: Preparation

    Preparation Resources Required • Two people, depending on task • " socket wrench • " diameter wood or self-tapping sheet metal screws (OEM-supplied) Pre-Installation The bed lift frame (Fig. 1) must be installed squarely, at the same height side-to-side and at the same distance from front-to-back in the unit with vertical rails parallel side-to-side.
  • Page 4: Motor And Connecting Shaft

    " diameter wood or self-tapping sheet metal screws (OEM-supplied) must be used in all large holes of the vertical rails, including the large double mounting holes at the top (Fig. 2) and bottom (Fig. 3) of the rails, to prevent rail-twist. Fig.
  • Page 5 Fig. 8 Fig. 7 Drive Trolley Loosen the set screw (Fig. 6C) in the collar of the connecting shaft where the gold hex shaft protrudes. Draw out the hex shaft and insert it into the motor until the E-clip (Fig. 6D) is seated against the motor. Make sure the opposite end of the connecting shaft remains seated.
  • Page 6: Wiring The System

    Wiring the System Connect 12V DC and ground from the unit's power supply to the motor's location with 10 AWG stranded wire. Connect a 12V DC line to the solid white wire of the supplied power pigtail and the ground wire to the black striped wire of the pigtail (Fig.
  • Page 7: Wiring Diagram

    Place the switch over the hole, and secure it with the screws provided. Make sure the switch is positioned such that both screws will securely hold the switch in place (Fig. 13). Fig. 13 Wiring Diagram Relay Control Module RVIA wiring requirements restrict the length of exposed motor leads to a maximum of 10". Therefore, the Relay Control Module must be placed above the motor or on the wall of the vehicle in close enough proximity to the motor that the 10"...
  • Page 8: Testing The System

    Testing the System Trolley Travel This test requires two people. Each time the micro-limit switch is depressed the drive trolley should stop. If the trolley fails to stop when the switch is depressed, re-check all electrical connections and 12V DC and ground wire connections.
  • Page 9: Bed Lift Operation

    Check to make sure that the wires punched down into the microswitch connectors (small red ones) are tightly secured. If necessary, press wires firmly in-place with a small screwdriver blade (Fig 17) to ensure that the pins in the connector bite through the insulation on the wire. Fig.
  • Page 10: Limit Switches - Microswitches

    Limit Switches - Microswitches To determine if there is a limit switch problem, eliminate the switch from the circuit. Remove the small red plugs from the PnP control module. Short the connector pins of the module. A. Lace a paper clip over and under the output pins of the 3-pin connector to create a short (Fig. 18). NOTE: Alternatively, an alligator clip may be used instead of a paper clip.
  • Page 11: Relocating Limit Switches

    Relocating Limit Switches If desired, the limit switches can be moved from their factory locations to one of the alternate positions. To relocate the upper limit switch: Remove the two Phillips head screws (Fig. 15). Move the switch to the new location. NOTE: It may be necessary to add 6P4C (28 AWG) wire to the microswitches to accommodate switch relocation.
  • Page 12: Manual Operation

    Manual Operation Before releasing the brake in manual mode, make sure there are no obstacles below the bed platforms. Be prepared to apply the brake, if necessary, and make sure to move the brake back into the ON position once the desired height is reached. Before manually cranking the bed lift, release the brake and unplug the motor from the PnP control module.
  • Page 13: Manually Lower The Bed(S)

    Manually Lower the Bed(s) Do the following in order: Unplug the motor from the control module (Fig. 23). Release the brake (Fig. 23). Bed(s) will drift downward. Apply the brake when bed(s) reach the desired height. Plug the motor cable into the control module. Page 13 Rev: 07.03.18 CCD-0001541...
  • Page 14 The contents of this manual are proprietary and copyright protected by Lippert Components, Inc. (“LCI”).  LCI prohibits the copying or dissemination of portions of this manual unless prior written consent from an authorized LCI representative has been provided.  Any unauthorized use shall void any applicable warranty. ...

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