atwood Folding Hitch Ball User Manual
Folding hitch ball, Optional under truck installation kit, Installation
1
REFERENCE NUMBERS REFER TO ILLUSTRATIONS ON PAGE 4.
SAFETY ALERT SYMBOLS
Safety Symbols alerting you to potential personal safety hazards. Obey all safety
messages following these symbols.
ƽ
WARNING
ƽ
CAUTION
avoid possible
avoid possible
injury or death
injury and/or property damage
FOR YOUR SAFETY READ ALL INSTRUCTIONS
BEFORE INSTALLATION AND OPERATION
Installer:
Provide these instructions to the consumer.
Consumer:
Keep documents for future reference.
ƽ
WARNING
PERSONAL INJURY / PRODUCT DAMAGE
•
Know the trailer weight and added load weight. Do not exceed
the capacity of the coupler, ball or stem, whichever is lower.
•
Do not exceed the towing vehicles rated towing capacity.
FOLDING HITCH BALLS
The Atwood Folding Hitch Ball is a hitch ball designed to be mounted
on a pickup truck, positioned above and forward of the rear axle for
towing gooseneck type trailers.
Max. Gross Vehicle Weight:
25,000 lbs.
Ball Size:
2-5/16˝ diameter
Tongue Load:
5,000 lbs.
For larger trucks, contact the vehicle manufacturer or Atwood
Mobile Products for recommendations.
To adequately transfer towing forces to the truck, the folding hitch ball
must be supported by a structure that ties the folding hitch ball into
the truck frame. The Atwood Under Truck Installation Kit is a complete
bolt-on support structure. Fabrication instructions for an alternate sup-
port structure using the Bed Plate or H Frame method of installation
are also included.
ATWOOD UNDER TRUCK INSTALLATION KIT
Use Installation Kit with Atwood Folding Hitch Ball
TOOLS REQUIRED:
Drill with 3/4˝, 7/16˝ bit
Hammer
Torque Wrench
9/16˝ wrench & sockets
Center Punch
15/16˝ wrench or sockets
Saber Saw
INSTALLATION PARTS:
QTY
DESCRIPTION
2
CROSS ANGLES (LONG PARTS)
2
SIDE FRAME MOUNT BRACKET (14˝)
1
BOLT PACK
8-
CARRIAGE BOLTS
3/8˝
X
2˝
GRADE
5
ZINC PLATED
8-
STANDARD BOLTS
3/8˝
X
1-3/4˝
GRADE
5
ZINC PLATED
16-
WASHERS
3/8˝
X
1
ZINC PLATED
16-
NYLON LOCK NUTS
3/8˝
GRADE
5
ZINC PLATED
4
SPACERS
INSTALLATION
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CAUTION
VEHICLE DAMAGE
•
For adequate transfer of forces produced during towing these
instructions MUST be followed.
1. Raise truck at frame so that the weight will be taken off the suspen-
sion and rear wheels will be away from wheel well openings. This
will give more access to the side of the truck frame where the
mounting plates will be installed.
2.
VEHICLES EQUIPPED WITH EXHAUST HEAT SHIELDS AND
/
OR WHEEL WELL LINERS
-
Temporarily remove shields and liners to provide adequate space for
installation of long cross angles and side frame mount brackets.
Keep these parts for replacement after hitch installation.
3. Place carriage bolts in square holes at the ends of the angles.
4. Slide cross angles (long) in between frame and bed under the vehi-
cle, one end at a time (the downward portion of the angles will be
facing each other)
FIG
3 & 4.
5. Insert side frame mounting brackets (end with slots) from side of vehi-
cle between vehicle frame and angles installed in previous step
FIG
5.
6. Loosely bolt cross angles to side frame mount bracket (14˝ long)
FIG
5.
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CAUTION
VEHICLE DAMAGE
•
The center of the ball must be 2˝ to 6˝ in front of axle centerline.
•
The position of the ball must allow for proper clearance between
trailer and both rear of cab, and rear corner of truck bumper when
making turns of up to 90°.
7. Position the center of the frame mount brackets 2˝- 6˝ forward of the
rear wheel axle centerline (providing adequate clearance for brake,
electrical and fuel systems)
FIG
6.
8. Center the long cross angles on the vehicle from right to left. This is
key to having the folding ball assembly centered in the bed
FIG
4.
Check installed cross angles to be sure that they are square with
the truck frame.
ƽ
WARNING
PERSONAL INJURY / VEHICLE DAMAGE
•
DO NOT CUT gas lines, brake lines, electrical wiring, etc. when mak-
ing cutouts or drilling holes in truck.
9. From the under side of pickup truck, mark the center of holes in
bed using the hitch as a template. Drill holes to fit carriage bolt
using a 3/4˝ drill bit
FIG
4.
10. Before cutting 12-7/8˝ x 8˝ hole in bed of vehicle be sure to recog-
nize the hole must be offset 2-1/8˝ towards the driver’s side for ball
to be centered in truck bed
FIG
2.
11. Make cutout on the floor of truck bed. See
FIG
1 & 2.
AENGLISH
•Installation •Operation •Maintenance
Effective 11/21/07
FOLDING HITCH BALL
OPTIONAL UNDER TRUCK
INSTALLATION KIT
LITERATURE NUMBER
MPD 70381
9