atwood Landing Legs - Manual

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LITERATURE NUMBER MPD 71125
5TH WHEEL LANDING LEGS &
REAR LEVELERS
STANDARD DUTY 2000 lbs / Landing Leg
HEAVY DUTY 3000 lbs / Landing Leg
SUPER DUTY 4000 lbs / Landing Leg
DIRECT DRIVE 4000 lbs / Landing Leg
DIRECT DRIVE 5000 lbs / Landing Leg
LEVELER 7500 lbs / Leveler
ENGLISH •Installation •Operation •Maintenance
Effective 3/14/08
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 operating landing legs.
Installer: Provide these instructions to the consumer.
Consumer: Keep documents for future reference.
FIGURES ARE LOCATED ON PAGE 5 OF THIS MANUAL
NOTE : Atwood 5th Wheel Landing Legs are intended for use on recre-
ation vehicle 5th wheel-type trailers only.
CAPACITY
DO NOT EXCEED THESE CAPACITIES
Heavy-Duty
Manual ▼▼ 3,000 lbs. per leg, 6,000 lbs. system
Electric ▵ 2,500 lbs. per leg, 5,000 lbs. system
Electric ▵▵ 3,000 lbs. per leg, 6,000 lbs. system
Super-Duty
Electric ▵▵ 4,000 lbs. per leg, 8,000 lbs. system
Direct Drive
Electric ▵▵ 4,000 lbs. per leg, 8,000 lbs. system
Electric ▵▵ 5,000 lbs. per leg, 10,000 lbs. system
Square Tube Leveler
Electric ▵▵ 7,500 lbs. per leg, 15,000 lbs. system
▼▼ with gear box ▵ single motor
▵▵ dual motor
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WARNING
TRAILER CAN MOVE OR COLLAPSE
• Never exceed the rated capacity of 5th Wheel Landing Leg.
• LANDING LEGS ARE NOT DESIGNED TO BE USED AS TRAILER JACKS . Do not use
the landings legs to lift the trailer during tire changes, axle work or
trailer servicing (the trailer weight will exceed the capacity of the
landing legs). The landing legs are designed to stabilize a portion of
the trailer’s weight. Support the front end of the trailer with structural
stands rated for the GVWR of the trailer.
• The pin between the ram and drop tube must be the same diameter
as the adjustment hole in the drop tube. Otherwise premature wear
on drop tube and ram will occur.
INSTALLATION
Front Landing Legs and Direct Drive Legs
1. LANDING LEGS : Assemble the 3:1 Gear Box to leg.
NOTE : The Direct Drive legs do not use the 3:1 gear box.
Gear box can be oriented to three positions for different crank handle
locations. Place gear box on the driver leg with the drive ‘D’ shaft
(
FIG 1-A) through the ‘D’ diameter of large gear in gear box
( FIG 1-B). Slip the collar ( FIG 1-C) over the drive ‘D’ shaft.
2. LANDING LEGS : Assemble foot pad ( FIG 2-A) to drop tube ( FIG 2-B) with
bridge pin clip ( FIG 2-C) and clevis pin ( FIG 2-D). For Standard and
Heavy Duty Landing Legs, assemble drop tube to ram ( FIG 2-E) in a
fully retracted position using lock pin ( FIG 2-F). For Super Duty, assemble
drop tube to ram with the ball detent pin ( FIG 2-G). Mount footpad
with its length running from front to rear of the 5th wheel trailer.
NOTE : Optional spring-loaded pull pins are available to replace 2-F or
2-G. There must be a half-hole at the bottom of the ram in order to
use the pull pin. If using a pull-pin, assemble it to the ram per its
instruction manual. Use only the
SNAPS TM pull pin on the Super Duty
legs ( FIG 2-H).
DIRECT DRIVE : Assemble the round foot pad ( FIG 2-I) to the ram
( FIG 2-J) with the supplied pin ( FIG 2-K).
3. Rotate drive shafts on both driver and driven legs to fully retract
landing legs.
4. Attach mounting brackets ( FIG 3-A) to legs using carriage bolts and
nuts ( FIG 3-B). Torque bolts to 18-20 ft.lbs. On each leg, position
one bracket above and one below mounting tabs ( FIG 3-C) welded
to landing leg housing.
5. Position legs against frame in a vertical position. Legs should not be
more than 1/4˝ out of parallel with each other. Locate foot pads and
lock pins for maximum ground clearance and to clear lower edge of
trailer.
6. Mark mounting bracket location on trailer frame. Weld mounting
bracket to trailer frame on both vertical sides and across either top
or bottom (
FIG 3-D). DO NOT weld edges that contact mounting tabs
on landing legs.
NOTE : Use 5/16˝ fillet weld No. E6011 AWS welding rod 5/16˝ diameter.
Machine amps (AC or DCRP) @ 160-180 with 50 volts.
NOTE : Due to different frame configurations, it may be necessary to
weld angle bracket tubing to upper and lower part of frame to locate
landing or direct drive legs vertically and plumb (
FIG 4-A).
7. LANDING LEGS : Assemble the cross shaft, if used, ( FIG 3-E), by placing
undrilled end of 3/4˝ square tube into open end of 1˝ square tube.
8. Attach both legs to frame. Fully retract both legs before attaching
cross shaft. LANDING LEGS : Place the collar ( FIG 1-C) between the 3/4˝
square tube and composite gear box.
9. LANDING LEGS : For leg sets with a cross shaft, fasten drilled end of
3/4˝ square tube to end of shaft through gear box with 1/4˝ x 1-
1/8˝ long screw and lock nut. Bolt end of 1˝ square tube to shaft of