Warren Elevating 5
th
Wheel
16
When you are sure the king pin jaws are positioned the correct distance ahead of your axle(s)
center, make chalk marks on the tractor frame at the following locations:
(NOTE: Make the marks across the top flange for the tractor frame, down the outside, across the
bottom flange, and up the inside of the tractor frame.)
Then, measure from the forward mark A to the very rear of the tractor frame. This is the length of
the steel angle(s) you will need on each side.
Table 2a.
Minimum forward position of 5th wheel Jaws center (D) In relation to axle(s) center (F) when
unit is down position.
5th Wheel Model
Model (Down
Position)
Position of Jaws (C) in Relation to Center of axle(s) center
(D). ins., (mm)
FW-30 & FW-45
C to D, Ahead
6(152)
Figure 4a. FW-30 & FW-45 5
th
wheel in down position
A. 3 inches
ahead of 5
th
wheel frame
B. Front of
5
th
wheel
frame
C. King Pin
Jaws center
in down
position
D. Axle
Center
E. Rear of 5
th
wheel frame
