3-28 TRAILER AXLE LIFT (MODEL 325)
The trailer axle lift is used to raise an axle off
the surface when it is not needed. If your
semitrailer is equipped with this option, the proce-
dure to operate the lift axle is as follows:
IMPORTANT
THE
AXLE
MUST
BE
DOWN
WHEN
THE
SEMITRAILER
IS
LOADED
TO
MAINTAIN
PROPER LOAD WEIGHT DISTRIBUTION.
3-28.1
Locate
the
AXLE
LIFT
CONTROL
VALVE (See Section 3-17).
3-28.2
Turn the valve to the "UP" position to
raise the axle.
3-28.3
Turn the valve to the "DOWN" position
to lower the axle for transporting a load.
3-29 13 FOOT GOOSENECK KINGPIN ADJUSTMENT (MODEL 329 ONLY)
The adjustable kingpin is used to transfer load
weight. If your semitrailer is equipped with the ad-
justable kingpin option, the procedure to change
the kingpin is as follows (
See Figure 3-11
for parts
identification):
3-29.1
Remove the hairpin clip from the castle
nut on top of the kingpin.
3-29.2
Loosen and remove the castle nut and
washer.
3-29.3
Twist the kingpin counter clockwise to
loosen it from the locking dowel and remove
it from the kingpin housing.
3-29.4
Insert the kingpin in the other kingpin
housing and twist it clockwise to lock it with
the locking dowel pin.
3-29.5
Install the washer and the castle nut
and tighten securely.
3-29.6
Put the hairpin clip through the hole in
the kingpin end and the slots in the castle
nut and clip it shut.
3-20
CASTLE NUT
KINGPIN
HOUSING
HAIRPIN
CLIP
LOCKING
DOWEL
KINGPIN
adjust kingpin
Figure 3-11 Adjustable Kingpin
Summary of Contents for 325C
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Page 44: ...4 8 Figure 4 3 Models 325 326 327 329C Wiring Diagram...
Page 54: ...4 18 Figure 4 13 Checking Axle Alignment Figure 4 14 Examples of Camber...
Page 59: ...4 23 Figure 4 17 Axle and Brake Assembly...
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Page 78: ...NOTES 5 10...
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