Installation Guide

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Before you begin
Assembly includes measuring the height requirement for the 5th
wheel head in relation to the trailer ride height at the kingpin box and
skid plate. Ideally, the trailer should ride as near to level as possible.
The 5th wheel is adjustable from 13" to 17", from the truck bed to
the top of its skid plate. Adjustment is attained by adjusting the main
body up or down, in relation to the legs, in 1.25" increments (typical
clearance between the truck bed rails and the trailer should be a
minimum of 5-1/2"). Follow the steps below to measure.
Step 1
With the trailer on a firm and level surface, set chock blocks
in front of and behind the tires. (Do not substitute wood blocks,
rocks, etc. for chock blocks.) Extend front trailer lifting jacks,
adjust as required to set trailer at or near level.
Step 2
Measure from the ground to under the trailer's kingpin
box skid plate or lube plate, if used. This will be the portion
in contact with the 5th wheel's skid plate once coupled.
Step 3
Measure from the ground to the surface of the truck bed.
Subtract the measurement taken in Step 2 from Step 1.
This value will be near the height requirement for the 5th wheel.
ASSEMBLY
CALCULATING HEIGHT
MAIN BODY ASSEMBLY
Before you begin
Once you have determined the height adjustment required for the
5th wheel, assemble the legs to the main body using the appropriate
holes. Occasionally, the trailer's kingpin pin box will require
adjustment to facilitate correct ride height.
WARNING
The jaws on the 5th wheel head are spring loaded. The jaws will open
rapidly when the safety pin is removed and the handle is moved to the
unlock position. Keep hands clear of the jaws at all time.
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Parts List
Item Qty Description
1 1 Main body / Head assembly
2 2 Leg weldment
3 1 Handle assembly
4 1 Handle lock bar
5 2 Button head cap screw,
M8 - 1.25" x 30
6 2 Lock washer, M8
7 1 Latch spring
8 4 Hex bolt, M14
9 4 Lock washer, M14
10 4 Flat washer, M14
11 4 Nylock nut, M14
12 4 Base rail mounting clip
13 4 Base rail mounting pin,
1/2" diameter