Lippert HAPPIJAC User Manual (English)

Questions and Answers:

D
Darrell RodriguezAug 13, 2025
What to do if Lippert HAPPIJAC bed(s) will not move either up or down when switch is pressed?
- S
  Shelley JamesAug 13, 2025
  If your Lippert Lifting Systems bed(s) aren't moving when you press the switch, it could be due to several reasons. First, ensure that your trailer batteries are adequately charged, or try connecting to shore power or a generator. If power isn't the issue, the control module or the UP/DOWN switch might be faulty and need replacement. If these steps don't resolve the issue, the motor may be defective, and you should contact Lippert Customer Service.
B
Briana ValenciaAug 16, 2025
Why Lippert Lifting Systems bed travels in only one direction?
- S
  stephenhallAug 16, 2025
  If your Lippert Lifting Systems bed only moves in one direction, the cause could be a defective limit switch, a faulty control module, or a faulty UP/DOWN switch, each requiring replacement. Another potential cause is a faulty brake. To check the brake, set the manual brake release lever on the motor to the "OFF" position. If the bed(s) then move, the brake is faulty and needs to be replaced.
H
Holly RogersAug 20, 2025
What to do if Lippert HAPPIJAC Lifting Systems bed lowers, but stops part way going up?
- B
  barnesalexisAug 20, 2025
  If your Lippert Lifting Systems bed lowers but stops part way when going up, it could be due to insufficient power. Ensure your trailer batteries are adequately charged, or connect to shore power or a generator. If power is not the issue, the motor/brake assembly may be defective, and you should contact Lippert Customer Service.
J
jordan20Aug 25, 2025
What to do if Lippert HAPPIJAC Lifting Systems bed(s) are drifting down?
- D
  Danielle MooreAug 25, 2025
  If your Lippert Lifting Systems bed(s) are drifting down, it may be because the brake lever is off. Reset the brake lever to prevent drifting.
J
james37Aug 28, 2025
What to do if Lippert HAPPIJAC Lifting Systems bed does not stay level; side-to-side or front-to- back?
- C
  Carlos LeonardAug 28, 2025
  If your Lippert Lifting Systems bed does not stay level from side-to-side or front-to-back, it could be due to a broken or loose timing shaft or a broken chain sprocket. In both cases, you should contact Lippert Customer Service.
B
Benjamin CookSep 1, 2025
How to fix Lippert HAPPIJAC Lifting Systems upper bunk (two-bed system) that does not lower smoothly?
- J
  Jason KimSep 1, 2025
  If the upper bunk in your Lippert Lifting Systems two-bed system isn't lowering smoothly, the bed carrier might be sticky. Try spraying a small amount of dry silicone lubricant into the rails to improve smoothness.
D
david59Sep 4, 2025
What to do if Lippert HAPPIJAC Lifting Systems bed fails to stop at preset stop point when lowered?
- J
  juliecastroSep 4, 2025
  If your Lippert Lifting Systems bed fails to stop at the preset stop point when lowered, it could be due to the motor brake not engaging or a defective limit switch. For a motor brake issue, contact Lippert Customer Service. If the limit switch is defective, replace it.
E
Erin JohnstonSep 8, 2025
What causes Lippert Lifting Systems bed to fail to stop at preset stop point when raised?
- V
  Veronica RobertsSep 9, 2025
  If your Lippert Lifting Systems bed fails to stop at the preset stop point when raised, it is probably due to a defect or damaged limit switch. Replace the limit switch to resolve this issue.

Lippert HAPPIJAC Specifications

General

Brand	Lippert
Model	HAPPIJAC
Category	Lifting Systems
Language	English

Summary

Safety

Understanding Safety Symbols

Clarifies the meaning of WARNING and CAUTION symbols used throughout the manual to denote risks.

Personal Protective Equipment

Recommends wearing eye protection and other safety gear during service and maintenance procedures.

Moving Parts Hazard Awareness

Warns about pinch, crush, or cut hazards associated with moving components of the lift system.

Product Component Descriptions

Lift System Frame

Details the four vertical c-channel rails that form the lift system's structural foundation.

Trolley Systems

Describes the upper and lower trolleys and their connection to brackets, noting different lower trolley types.

Bracket Types

Explains screw-in tab, hooked tab, and movable arm brackets for various bed or sofa configurations.

Limit Switch Functionality

Details the function and location of upper and lower limit switches for controlling travel range.

Sofa/Dinette Configuration Safety

Emphasizes safety precautions for sofa/dinette use, including support legs and specific warnings.

Bunk Stop Settings

Operating Precautions

Operation

Control Switch Operation

Details how to operate the bed lift system using the UP and DOWN control switch.

Upper Trolley Functionality

Explains the role of upper trolleys in supporting bed platforms and their attachment.

Stowing & Un-stowing Upper Trolleys

Provides steps for securing and releasing upper trolleys using bunk pins.

Automatic Upper Bunk Lock-Up System

Locking the Upper Bunk Trolleys

Step-by-step instructions for engaging the automatic lock-up mechanism for the upper trolleys.

Releasing the Upper Bunk Trolleys

Steps to disengage the automatic lock-up system and lower the upper bunk trolleys.

Sofa or Dinette Configuration

Lowering the Arm

Instructions for removing and lowering the sofa/dinette bracket arms.

Adjustments

Timing Adjustment Procedure

Details the procedure for adjusting the bed lift timing for proper latching and unlatching.

Upper Trolley Tab Rotation

Steps to rotate upper trolley tabs to adjust space between bed platform and bunk stop.

Lower Trolley Sofa/Dinette Bracket Removal

Lower Bunk Trolley Tab Installation

Maintenance

Troubleshooting

Emergency Manual Operation

Manually Raising the Bed/Sofa

Step-by-step guide for manually raising the bed or sofa/dinette using tools.

Manually Lowering the Bed/Sofa

Instructions for manually lowering the bed or sofa/dinette in emergency situations.

Lippert HAPPIJAC User Manual

Table of Contents