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Rev: 06.30.22

Page 14

CCD-0001575

Maintenance

The bed lift system requires very little maintenance. The chains are pre-lubricated and nickel-plated to 

prevent corrosion. All bearings are sealed and all parts are either plated or finished with a durable powder-

coat finish.

The only required maintenance involves keeping the mechanisms clean and free of debris. When cleaning 

the trailer after use, inspect the vertical trolley channels for dirt or debris and clean as necessary. After 

cleaning, a light application of dry silicone spray on the inner sides of the trolley channels will improve 

performance and reduce noise and required amperage draw. 

Troubleshooting

What Is Happening?

Why?

What Should Be Done?

Bed(s) will not move 

either up or down 

when switch is pressed. 

No or insufficient power to 

operate the bed(s).

Make certain trailer batteries are adequately 

charged, connect to shore power or a generator. 

Faulty control module.

Replace module.

Faulty UP/DOWN switch.

Replace switch.

Defective motor. 

Contact Lippert Customer Service.

Bed travels in only  

one direction.

Defective limit switch.

Replace limit switch.

Faulty control module.

Replace module.

Faulty UP/DOWN switch.

Replace switch.

Faulty brake.

Set manual brake release lever on motor to 

the "OFF" position. If the bed(s) move, replace 

the faulty brake. 

Bed lowers, but stops 

part way going up.

Insufficient power to bed.

Make certain trailer batteries are adequately 

charged, connect to shore power or a generator. 

Defective motor/brake assembly.

Contact Lippert Customer Service.

Bed does not stay level; 

side-to-side or front-to-

back.

Broken or loose timing shaft.

Contact Lippert Customer Service.

Broken chain sprocket.

Contact Lippert Customer Service.

When lowered, bed 

fails to stop at preset 

stop point.

Motor brake not engaging.

Contact Lippert Customer Service.

Defective limit switch.

Replace limit switch.

When raised, bed fails to 

stop at preset stop point.

Defect or damaged limit 

switch.

Replace limit switch.

Upper bunk (two-bed 

system) does not  

lower smoothly.

Sticky bed carrier.

Spray a small amount of dry silicone 

lubricant into the rails.

Bed(s) are drifting 

down.

Brake lever is off

Reset the brake lever. 

Motor failures are extremely rare and motors are expensive. If uncertain of failure, contact Lippert customer 

service at 

[email protected]

 or (432) 547-7378 before replacing the motor.

Summary of Contents for HAPPIJAC

Page 1: ...HappiJac Bed Lift OWNER S MANUAL...

Page 2: ...12V DC Nominal Current Draw 8 amps 1 bed going up 12 amps 2 beds or 1 bed and 1 sofa dinette configuration going up Load Limit 450 pounds dynamic moving load 600 pounds static stationary load Note Th...

Page 3: ...t out instructions for every possibility but provides the general instructions as necessary for effectively interfacing with the device product or system Failure to correctly follow the provided instr...

Page 4: ...ig 1A Each c channel rail encases a chain drive and trolleys Fig 2 with attached brackets that travel between upper and lower limit switches Fig 1 Fig 2 Upper Trolley A Standard Lower Trolley Slotted...

Page 5: ...ll screws Fig 6B The limit switches are used to stop the bed s at their maximum travel range However the lower bed platform can be stopped and used at any desired height After the control switch is re...

Page 6: ...s above below and adjacent to the bed s are free from obstructions before operating the bed s ALWAYS check before operating bed s to ensure that there is nothing interfering with the travel of the cha...

Page 7: ...ed platform rails Fig 9A are secured to the tab brackets Fig 9B and the bed platform rests on the platform rails Fig 8 A B Note Bed platform has been removed for clarity The upper trolleys can be lock...

Page 8: ...Repeat for the other locking mechanisms A Fig 10 3 Press UP on the control switch until the upper bunk is in the full up position where the bed lift shuts off automatically This will push the upper tr...

Page 9: ...B Fig 12 Lower Trolley Sofa or Dinette Configuration The lift system can be configured to accommodate a bed on the upper trolley and a sofa or dinette on the lower trolleys The sofa or dinette will n...

Page 10: ...em should be set 1 4 to 1 2 higher than the motor side To adjust the timing 1 Press the DOWN switch to lower the bedlift system until it stops 2 Measure from the bottom of the lower trolley sofa brack...

Page 11: ...A Remove the hairpin Fig 18A securing the clevis pin Fig 18B and washer Fig 18C B Remove the clevis pin holding the bedlift rail Fig 18D to the tab bracket Fig 18E C Repeat for the other side 3 Carefu...

Page 12: ...river The sofa dinette brackets can be removed from the lower trolleys and trolley tabs can be added to accommodate a second bed platform See Lower Bunk Trolley Tab Installation for instructions on ad...

Page 13: ...racket can only be installed with the trolley tab at the top 1 Remove the sofa brackets from the lower travel trolley See Lower Trolley Sofa Dinette Bracket Removal 2 Line up the hooks on the edge of...

Page 14: ...tive limit switch Replace limit switch Faulty control module Replace module Faulty UP DOWN switch Replace switch Faulty brake Set manual brake release lever on motor to the OFF position If the bed s m...

Page 15: ...e the Bed s Sofa or Dinettes Resources Required 1 2 Socket and ratchet 1 Unplug the motor harness from the motor port Fig 23A on the PnP control module Note The PnP control module could be mounted in...

Page 16: ...pared to apply the brake if necessary 2 Move brake release lever to OFF position to release Fig 24A Bed will drift downward 3 Re apply the brake when the desired bed height is reached 4 Reconnect the...

Page 17: ...Rev 06 30 22 Page 17 CCD 0001575 Notes...

Page 18: ...e has been provided Any unauthorized use shall void any applicable warranty The information contained in this manual is subject to change without notice and at the sole discretion of LCI Revised editi...

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