atwood Truck Camper Jacks User Manual
LITERATURE NUMBER MPD 87903
CAMPER JACK CONTROL
WITH ATWOOD’S AUTOMATIC EXTEND
DRIVER PASSENGER
EE
RR
EE
RR
ALL JACKSFRONT
E
R
FRONT
REAR REAR
ACME & BALL SCREW
A Division of Dura Automotive Systems
ENGLISH, FRANCAIS (et Canada) •Installation •Operation •Maintenance
REFERENCE NUMBERS REFER TO ILLUSTRATIONS ON BACK PAGE
SAFETY ALERT SYMBOLS
Safety Symbols alerting you to potential personal safety hazards.
Obey all safety messages following these symbols.
WARNING CAUTION
avoid possible avoid possible
injury or death injury and/or property damage
READ ALL INSTRUCTIONS BEFORE OPERATING JACKS
Installer: Provide these instructions to the consumer.
Consumer: Keep documents for future reference.
Atwood Acme and Ball Screw Truck Camper Jacks are designed to be
used in sets of four with one at each corner of the truck camper. The
maximum static load and lifting capacity is:
SCREW SYSTEM PER JACK
Acme 2,250 lbs. 1,250 lbs.
Ball 3,900 lbs. 2,200 lbs.
Heavy Duty Ball 5,000 lbs. 2,800 lbs.
Atwood makes two types of Electric Ball Screw Truck Camper Jacks
(EBSTCJ); one with remote capability and one without. They are not inter-
changeable. Our remote control is designed for use only with Atwood Electric
Ball Screw Truck Camper Jacks (EBSTCJ) equipped for remote control capability. The camper must be wired specifically for the remote.
See Chart below for the recommended maximum loading for a four
jack system based on the bracket kit used.
Bracket Kit or less 3900 lbs. 5000 lbs.
Narrow Front
Narrow Rear X
with lower clamp
Wide Front
Wide Rear X
with no lower clamp
Wide Front
Narrow Rear X X
with lower clamp
Wide Front, Wide
Rear with lower clamp
FOR YOUR SAFETY
Truck Camper Wet Weight
2250 lbs. – 2250 lbs. – 3900 lbs. –
XXX
PERSONAL INJURY & PRODUCT DAMAGE
• Unplug the remote control when not in use.
• Store remote in a secure place, away from access by children.
INSTALLATION
NOTE: Camper manufacturer must insure camper side walls are sufficiently
reinforced at corners for mounting jacks.
1. Bolt together flat and formed pieces of each corner bracket using
3/8˝ x 1˝ grade 5 bolts, flat washers and bolt retainers (supplied) as
shown in FIG 1 or 4. Bolts must extend from the formed piece
through the flat piece.
2. Position brackets on corners so that jack will be perpendicular to
ground when camper is level. (See
lower support bracket, place it at least 12˝ below main corner bracket. See FIG 3-A.
3. On all corner brackets and lower support brackets, drive 1/4˝ diameter lag screws (not supplied) into camper’s corner through center of
each slotted hole into camper framework. Minimum length of lag
screw must be 1-1/4˝. See FIG 2-A for wide brackets and FIG 5-A for
narrow brackets.
NOTE: Holes are slotted to allow brackets to tighten up to the camper’s
corners as installation is made. Positioning lag screws in center
of slots permits bracket to shift without affecting the integrity of
the corner.
4. On wide brackets, use steel angles (not supplied) on inside of
camper’s corners to provide sufficient support. See FIG 2-B. Use four
(4) 3/8˝ bolts, lock washers and nuts (not supplied) to bolt through
each wide corner bracket, side wall and steel angle. Torque bolts to
15-20 ft. lbs.
5. Mount jacks to 3/8˝ x 1˝ long grade 5 hex bolts protruding from corner brackets (installed in STEP 1 above). Use flat washers and locknuts (SUPPLIED) to retain jack. Torque to 15-20 ft. lbs. See FIG 2-C for
wide and 5-B for narrow (bolt retainer not shown for clarity).
NOTE: Jack must be located so handle clears all obstructions when
cranked.
NOTE: For trucks with dual rear wheels, use Swing-Out Brackets to
allow the front jacks to swing out to a wider position to clear dual
wheel fenders. Follow Swing-Out Bracket instructions MPD
87904 for proper installation and safe use.
6. For rear jacks with lower clamps, carefully spread clamps far
enough to slip over rear jack tube. Push onto jack and attach to
lower support brackets with 3/8˝ x 1˝ long, grade 5 hex bolts, flat
washers, and locknuts provided. Torque bolts to 15-20 foot lbs.
WARNING
PERSONAL INJURY & PRODUCT DAMAGE
• Never store camper on the jacks.
• Never exceed rated jack and/or camper capacity.
Camper can collapse and tip over.
Do not operate jacks if the camper exceeds gross vehicle weight.
•
• Only operate jacks when camper is unoccupied and contents are
secured and properly distributed.
Maintain proper load distribution and a safe distance when raising
•
or lowering camper.
• Park the camper on a firm, level site.
Never walk under the camper when it is extended on the jacks.
•
• Do not lift the truck with the jacks.
Electric Ball Screw Jack
7. Locate electrical receptacles on front and rear of camper as shown
by the rear view in FIG 9 with 4-wire connectors on driver side and 2wire connectors on passenger side of camper. Receptacles must be
mounted within 5˝ from edge of camper, see FIG 9-A.
8. Make electrical connections as shown in FIG 10 with front and back
jacks on separate 30 amps circuits with fuses located within 18˝ of
battery. Use 10 gauge stranded copper wire. Wiring must met RVIA
codes.
A - Driver side D - 30 amp fuse
B - Passenger side E - Black w/White stripe
C - Red w/White stripe F - Black
WITHOUT REMOTE CONTROL - FIG 6 & 7
1
TRUCK CAMPER JACKS
INCLUDES REMOTE CONTROL
FOR ELECTRIC BALL SCREW JACKS
(4 JACK SETS)
Effective 5/22/07
WARNING
FIG 3) On rear corners with a
G - Red
Electric Ball Screw Jack WITH REMOTE CONTROL - FIG 7
Press and hold
Extends single jack.
Press and hold.
Retracts single jack.
Press and hold.
Retracts single jack.
Press and hold
Extends single jack.
Press and hold.
Retracts single jack.
Press and hold
Extends single jack.
7. Mount two wire connectors on front and rear of camper within 5˝
from edge of camper.
CAUTION
PRODUCT DAMAGE
• Disconnect power to the power relay module prior to HiPot testing
of the camper or the microprocessor will be damaged.
TO INSTALL THE WIRELESS REMOTE CONTROL, REFER TO INSTRUCTION
MPD 87920.
OPERATION
To remove handle, hold plastic push collar in place with one hand
and back handle off with the other hand until the pin is engaged in
the middle of handle “T” slot. Release bar should audibly and visually
spring back into position. To do so the handle must be in the vertical
position (
NOTE: If jack is supporting camper, it may be necessary to rotate han-
FIG 17).
dle clockwise slightly to relieve load on Release Bar before
Release Bar can be disengaged.
Manual Ball Screw Jacks have a quick-to-ground feature. To drop
jack foot quickly to ground: push in both sides of Release Bar, then
step down on jack foot to drop it to the ground.
NOTE: Quick-to-ground feature may not work freely until jack has been
used several times because of close tolerances built into jack.
ELECTRIC JACKS
WARNING
CAMPER CAN TIP OVER
• Soft or spongy areas may cause jacks to sink, causing camper to
tip over. Park the camper on a firm, level site.
• Insure area below and around jack is clear of obstructions.
• Do not place blocks under the jack for additional ground clearance.
• Always keep the front of camper higher than or equal to the rear
of the camper. Never allow either side or end of camper to be more
than 4˝ out of level. See FIG 12 and 13.
• Do not use the jacks to raise the truck, such as to change a tire.
The jacks are designed only for lifting and lowering the camper
onto the truck and for stabilization of camper.
CAUTION
PRODUCT DAMAGE
• Do not over extend or over retract jacks. Each jack has built in stops.
Excessive force applied against the stops will cause damage.
Do not use pneumatic tools to operate any jack. They can over-extend
•
or over-retract the jack.
• Do not use the jacks to level the truck and camper. This will overload
the jacks.
ACME JACK — FIG 14
CAUTION
PERSONAL INJURY/PRODUCT DAMAGE
• Do not use pneumatic tool to run drill adapter.
• Battery operated drills, 9.6V to 18V, are powerful. Hold drill with
both hands to protect your wrist. Keep loose clothing and body
parts away from drill as the reaction torque from the drill may
cause it to kick back.
• Refer to your drill manufacturer’s operation manual.
To extend or retract jack, push handle onto drive shaft and rotate
slightly until drive pin is engaged in handle slot. Rotate handle clockwise to raise camper or counterclockwise to lower
instructions in TO LIFT OR LOWER TRUCK CAMPER section. To remove handle,
reverse above procedure. A drill adapter is provided, for even faster setup or tear-down (
OR LOWER TRUCK CAMPER section.
FIG
15 and caution above). Follow instructions in TO LIFT
MANUAL BALL SCREW JACK — FIG 16
To extend or retract jack, push handle onto alignment tube and depress
release bar with plastic push collar (
place with one hand and rotate handle slightly with the other hand
until black pin engages
clockwise
to raise camper or counter clockwise to lower camper.
Follow instructions in T
at either end of handle “T” slot. Rotate handle
O LIFT OR LOWER TRUCK CAMPER
FIG 17). Hold plastic push collar in
camper. Follow
section.
CAUTION
PRODUCT DAMAGE
• Do not over-extend or over-retract jacks. The electric jack has an
internal slip clutch to help prevent damage; when clicking sound is
heard, release switch. Continuing to hold the switch will wear out
the slip clutch or cause damage to the motor.
• If the motor will not extend/retract the jack and the motor is mak-
ing a ratcheting sound (clutch slipping), do not use the manual
override. Immediately contact an Atwood Service Center and have
jack replaced. Do not use the jack until replaced.
• If grinding operation should occur or any indications of improper or
inadequate performance, have a trained service professdional
inspect the jack set.
Electric Ball Screw Jack WITHOUT REMOTE CONTROL — FIG 6 & 7
Press switches on driver side jacks to raise and lower camper. Press
top of switch to retract jack (RET) or bottom of switch to extend jack
(EXT). You may need to first turn on power to jacks using switch inside
your camper.
Manual Override Operation: To manually extend or retract jack, place
manual override handle (
engage drive pin. Rotate handle counter-clockwise to raise or clockwise to lower camper.
Electric Ball Screw Jack
Remove the hand held remote control from its secure compartment.
Push activation switch to energize for wireless remote. Operator and
all spectators must stand a safe distance from the camper.
To LIFT Truck Camper WITH REMOTE CONTROL
EXTEND FRONT Disconnect the front and rear tiedowns.
JACKS FIRST
EXTEND ALL JACKS
INDIVIDUAL JACK
ADJUSTMENT
To LOWER truck camper WITH REMOTE
RETRACT REAR JACKS
FIRST
Follow instructions in TO LIFT OR LOWER TRUCK CAMPER section.
FIG 8-A) into alignment tube (FIG 8-B) and
WITH REMOTE CONTROL— FIG 7
Extend front jacks so camper is 4˝ higher in
front than in the rear. (see FIG 12).
Once the camper front is higher than the rear,
press and hold the ALL JACKS BUTTON, extend
( ). Release when the camper is at the
desired height.
Use the individual jack buttons to adjust an
individual jack. Press and hold the extend or
release buttons for the individual jacks as
needed to keep the front of the camper 4˝
higher than the rear, to prevent tipping over
the camper. Keep all corners within 4˝ of
level with each other.
Retract rear jacks so camper is 4˝ lower in
rear than in the front. (see FIG 13).
WARNING
PERSONAL INJURY & PRODUCT DAMAGE
• Always maintain positive pressure on handle until the release bar
is completely back into place, engaging the drive pin.
• Do not use quick-to-ground feature with handle in place. Handle
will spin and can cause property and bodily injury.
RETRACT ALL JACKS
INDIVIDUAL JACK
ADJUSTMENT
2
Once the camper has the rear lower than the
front, press and hold the ALL JACKS BUTTON,
retract ( ). Release when the camper is at
the desired height.
Use the individual jacks buttons to adjust an
individual jack. Keep all corners within 4˝ of
level with each other.
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