Lippert Components Happijac Manuel utilisateur
Happijac®Bed Lift
OWNER'S MANUAL
Rev: 07.10.19 Page 2 CCD-0001575
TABLE OF CONTENTS
Introduction 2
Safety 3
Product Component Descriptions 4
Frame 4
Brackets 5
Limit Switches 5
Bunk Stop Settings 6
Operating Precautions 7
Operation 7
Control Switch 7
Upper Trolleys 8
Lower Trolley: Sofa or Dinette Conguration 9
Adjustments 10
Upper Trolley Tab Rotation 10
Lower Trolley Sofa/Dinette Bracket Removal 11
Lower Bunk Trolley Tab Installation 12
Maintenance 13
Troubleshooting 13
Emergency Manual Operation 14
Manually Raise the Bed(s)/Sofa or Dinettes 14
Manually Lowering the Bed(s) 15
Introduction
The HappiJac® Bed Lift System is a chain-driven two trolley lift system operated by a 12V DC motor, which
can be installed in most toy hauler trailers. It can accomodate one or two beds, or an alternate of a bed and a
dinette/sofa configuration.
This product is designed and intended to be used only as a bed lift mechanism. Any other use of this system
will void any and all written or expressed warranties.
NOTE: These ratings are for the lifting mechanism only. HappiJac does not manufacture and therefore
does not rate any attachments, such as bed platforms, sofas, etc. Load ratings for these items
would be the responsibility of the manufacturer.
Voltage = 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
500 pounds static (stationary) load
Rev: 07.10.19 Page 3 CCD-0001575
The "WARNING" symbol above is a sign that a procedure has a safety risk involved and may cause death
or serious personal injury if not performed safely and within the parameters set forth in this manual.
Failure to follow instructions provided in this manual may result in death, serious personal injury
and/or severe product and property damage, including voiding of the component warranty.
Safety
This manual provides general instructions. Many variables can change the circumstances of the instructions,
i.e., the degree of difficulty, operation and ability of the individual performing the instructions. This
manual cannot begin to plot 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 instructions may result in death, serious personal injury, severe product and/or property damage,
including voiding of the LCI limited warranty.
Always wear eye protection when performing service, maintenance procedures. Other safety
equipment to consider would be hearing protection, gloves and possibly a full face shield,
depending on the nature of the task.
Moving parts can pinch, crush or cut. Keep clear and use caution.
The "CAUTION" symbol above is a sign that a procedure has a safety risk involved that may cause
personal injury and/or product damage, including voiding of warranty, if not performed safely and
in accordance with the safety procedures stated herein.
Rev: 07.10.19 Page 4 CCD-0001575
Product Component Descriptions
Frame
The lift system frame has four vertical c-channel rails (Fig. 1A). Each c-channel rail encases a chain drive and
two trolleys (Fig. 2) with attached brackets that travel between upper and lower limit switches.
Fig. 1
Fig. 2
Upper Trolley
Lower Trolley
A
Rev: 07.10.19 Page 5 CCD-0001575
Fig. 4
Fig. 3
Brackets
The HappiJac Bedlift system comes installed with screw-in tab brackets (Fig. 3) affixed to the upper trolleys. The
lower trolleys can be fitted with hooked tab brackets (Fig. 4) for a lower bed platform, or hooked brackets with
moveable arms (Fig. 5) that can accomodate a sofa/dinette configuration.
Fig. 6
Limit Switches
Upper and lower limit switches (Fig. 6A) are located behind the C-channel and secured by two small screws
(Fig. 5B). The limit switches are used to stop the bed(s) at their maximum travel range. However, the bed(s)
can be stopped and used at any desired height. After the control switch is released, the electric brake is set
— securing the bed(s) in the current position.
B
A
Fig. 5
Rev: 07.10.19 Page 6 CCD-0001575
Bunk Stop Settings
The upper bunk trolley is free-floating and is carried by the lower trolley. The height at which this trolley
stops is set by "stop blocks" which sit inside the trolley rails. To change this stop, remove the two screws
holding the bed in place, and move it to the desired height (Fig. 7). Repeat for all four corners.
Fig. 7
Stop
Block
Rev: 07.10.19 Page 7 CCD-0001575
A
B
Fig. 8
Operating Precautions
• CHECK to make sure the attaching pins are securely fastened to all four corners of the bed platform before
towing the trailer, or using the bed(s).
• ALWAYS raise the bed(s) to the full up position when the trailer is being towed to avoid damage to the bed
lift system as a result of bouncing.
• ALWAYS make sure that the areas 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
chain mechanism inside the c-channel.
• ALWAYS use care when loading cargo/vehicles in the bed area. This is to avoid damage to the bed
mechanism.
• ALWAYS properly secure loads in the bed area to avoid damage to the bed mechanism from shifting or
falling loads.
• NEVER operate the bed(s) with any items other than bedding on the bed platform(s).
• NEVER travel with any items other than bedding on the bed(s). Loose items can become projectiles.
• NEVER operate the bed(s) when persons or pets are on the bed platform.
• NEVER hang from, or hang more than 20 pounds, on the cross-connecting shaft.
Operation
Control Switch
NOTE: Upper and lower trolleys move together, unless one trolley set has been locked into place.
The the upper and lower trolleys are operated from the control switch (Fig 8). Pressing and holding the
switch in the UP position (Fig. 7A) moves the trolleys upward. Pressing and holding the switch in the DOWN
position (Fig. 7B) moves the trolleys downward.
Rev: 07.10.19 Page 8 CCD-0001575
The upper trolleys are only used to support a bed platform. Bed platform rails (Fig. 9A) are secured to the tab
brackets (Fig 9B) and the bed platform rests on the platform rails.
Lowering
1. Put the sofa or dinette seats, if equipped, in the up (stowed) position. (See Lower Trolley: Sofa or
Dinette Configuration.)
Fig. 9
Upper Trolleys
Fig. 10
AB
A
B
NOTE: Bed platform has
been removed
for clarity.
2. Pull the all four pins (Fig. 10A) securing the upper trolleys (Fig. 10B) to the C-channel rails (Fig. 10C).
The upper trolleys can drift down if not properly secured. Make sure that the securing pins are in
place after adjusting the upper trolleys.
3. Press the DOWN switch and the upper and lower trolleys will come down together. The upper trolleys
will stop at the first stop bunk stop block.
4. The the lower trolleys can continue to lower.
5. Replace the pins securing the top bunk.
Rev: 07.10.19 Page 9 CCD-0001575
A
B
Fig. 11
Stowing
The HappiJac Bed Lift system has a stow feature for the upper trolley, where the upper limit switches stop
the upper trolleys in uppermost position to provide maximum space underneath the bed platform attached
to the upper trolleys.
NOTE: Lower trolleys can still move up and down when the upper trolleys are in the stowed position.
1. Press the UP switch to run the upper trolleys until they are stopped by the upper limit switches.
2. Insert all four locking pins (Fig. 10A) through the C-channel rails.
3. Lower bottom bunk to desired operational height.
To Un-stow
1. Retract the beds up to the up and retracted position.
2. Remove all four locking pins (Fig. 10A) from the C-channel rails.
3. Lower both platforms until the top bunk rests on the bunk stops, and the lower platform continues to
extend and lower to the desired operational height.
Lower Trolley: Sofa or Dinette Configuration
The lift system can be configured to accomodate a bed on the upper trolley and a sofa or dinette on the
lower trolleys. The sofa or dinette will need extra brackets that will lock into the lower trolleys.
NOTE: Bracket shown without sofa or dinette attached. Consult the manufacturer's instructions for bracket
installation on sofa or dinette units.
Lowering the Arm
1. Remove the lockpins securing both bracket arms (Fig. 11A).
2. Pull up slightly on the bracket arm (sofa or dinette seat base) (Fig. 11B), then pull out.
3. Gently lower the arm (sofa or dinette seat base).
Rev: 07.10.19 Page 10 CCD-0001575
Lower Trolly Stop Lock
Each of the lower trolleys has a stop lock to keep the lower trolleys from travelling upwards. To engage the
stop lock, flip the long end of stop lock lever (Fig. 12A) towards the inside of the C-channel rail. This lever
will now catch on the bottom edge of the stop blocks in the C-channel rail, stopping the upward progress.
To disengage: pull the short end (Fig. 13) of the stop lock lever down to flip the long end out of the
C-channel rail.
Fig. 14
A
Adjustments
Upper Trolley Tab Rotation
The upper trolley tabs can be rotated to change the amount of space between the bed platform and the
upper bunk stop.
1. Remove the bed platform.
2. Remove the adjustment pins and lower the bedlift so there is enough clearance to remove the bedrail
rail without hitting the motor
3. Replace the adjustment pin.
4. Remove the hairpin (Fig. 14A) securing the clevis pin (Fig. 14B) and washer (Fig. 14C).
5. Remove the clevis pin holding the bedlift rail (Fig. 14D) to the tab bracket (Fig. 14E).
D
B
EC
A
Fig. 13
Fig. 12
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