dirt or foreign material from entering the air
system lines.
NOTICE
Always make sure the connection hanger keeps
the trailer air hoses and electrical cables
positioned so that they do not rub on anything.
Rubbing may wear through hoses or cables,
resulting in air leaks, or exposed or broken wires,
potentially affecting trailer brake or electrical
systems.
13.
Charge the air brake system with air, checking
that the air connections do not leak.
14.
Fully retract the landing gear legs and secure the
crank handle.
15.
Remove the chocks.
Holland Fifth Wheels Coupling
1.
Chock the front and rear of the trailer tires to
prevent the trailer from moving.
2.
If equipped with a standard fifth wheel, check
the surface of the fifth wheel for a liberal coating
of grease.
If equipped with a no- or low-lube fifth wheel
plate ensure there are no sharp edges, nuts,
bolts, gouges, or large holes along the leading
edge of the trailer or the path of the fifth wheel,
as shown in
Fig. 17.9, and that any upper
coupler residual grease is free of coarse grit.
3.
Ensure the fifth wheel jaw is fully open and the
release handle is in the unlocked position.
3.1
To unlock a Holland FW35/31 fifth wheel,
pull out the release handle as shown in
Fig. 17.10.
3.2
To unlock a Holland FWAL:
•
Slide the release handle forward to
move the front notch on the locking
plate clear of the bracket.
•
Pull the release handle completely
out.
•
Slide the release handle forward
again to hook the rear notch on the
locking plate onto the bracket as
shown in
Fig. 17.11.
4.
Make sure the fifth wheel top plate is tilted
rearwards with the ramps down and resting on
the tilt stops.
5.
Position the tractor so that the center of the fifth
wheel is in line with the trailer kingpin as shown
f31136308/23/2021
A
1
2
A. Make sure there is less than a one inch gap
between the back of the pull hand and the fifth
wheel skirt.
1. Pull Handle 2. Skirt of Fifth Wheel
Fig. 17.8, Fontaine Fifth Wheel Handle Retracted
f31135608/24/2021
B
6" MIN.
6" MIN.
40"
A
A. Keep the direct path of fifth wheel and six inches to
either side free of large holes and gouges.
B. Keep bolts and nuts clear of the bolster plate.
Fig. 17.9, Path of a Fifth Wheel
f31134608/25/2021
A
1
2
A. Pull the release handle to open the lock.
1. Lock Open 2. Lock Closed
Fig. 17.10, FW35 Holland Locks Open and Closed
Fifth Wheels and Trailer Couplings
17.4
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