Trailer Couplings - freightliner M2 Plus 2023 Manual

09/10/2010
A. Unlocked
Fig. 17.30, Jost Sliding Fifth Wheel
WARNING
Check that the locking wedges have seated in the
slots. Failure to achieve complete lockup may
allow disengagement of the tractor from the
trailer, possibly resulting in serious personal
injury or death.
6. Set the air-slide switch to LOCK. Visually inspect
the locking wedges or plungers to make sure
that they are fully inserted in the slide rail slots.
The fifth wheel may need to be moved slightly to
enable the locking wedges to fully lock.
Further verify that the plungers have engaged by
tugging the tractor forward while the trailer
brakes are locked and the wheels are chocked.

Trailer Couplings

Holland Trailer Couplings
IMPORTANT: Refer to the Holland web site
(www.safholland.us/us/en/) for additional
information.
Fifth Wheels and Trailer Couplings
A
B
f311131
B. Locked
The Holland trailer coupling is designed for use with
trailers having a maximum gross weight of 30,000 lb.
(13,610 kg) for Holland PH-30RP41 and PH-30RP51.
It is a rigid-type pintle hook, used only on tractor
applications, and is fastened to the rear closing
crossmember of the vehicle. It is a non-air-adjusted
coupling. See Fig. 17.31
1
01/12/2016
1. Lock
2. Latch
Fig. 17.31, Holland Trailer Coupling with FastLatch
1
02/17/2017
1. Lock
2. Lock Pin
Fig. 17.32, Holland Trailer Coupling with Lock Pin
Holland Coupling Trailer Hookup
1. Chock the front and rear tires of the trailer.
2. Remove the lock pin (if equipped), then lift the
lock handle and raise the latch.
and Fig. 17.32.
2
3
f311187
3. Pintle Hook
2
3
4
f311176
3. Latch
4. Pintle Hook
17.12