2.26.10 Unpinninq the Tow Point. The tow point of the
mechanically controlled to being hydraulically controlled
by unpinning the tow point from the tractor and pinning to
the tow point cylinder. Mat thickness up to 6 in. (152
mm) is achieved through hydraulic adjustment of the tow
Shut down paving machine and remove key from
ignition switch per paragraph 2.11.
Access toolbox per paragraph 3.3.1 and retrieve
wrench set from toolbox.
Procedures for unpinning the tow
point are the same for both left and
right screed tow arms. Unpin one
side of the machine at a time. For
clarity, the left side of the machine is
illustrated in this procedure.
Use a wrench to remove hex head cap screw
If necessary, adjust screed thickness control (9)
to remove load of screed tow arm (4) on tow arm
locking pin (12).
Remove locking pin (12) from lock pin hole (10)
in tow arm support plate (11).
Hold tow point cylinder (3) and pull retaining clips
(5) to remove cylinder from side access cover
Line up holes in top cylinder clevis head and
mounting bracket (7). Install clevis pin (6) and
retaining clips (5) to secure top cylinder clevis
Pull bottom cylinder clevis head down to line up
with clevis mounting hole in screed tow arm (4).
Install clevis pin (2) and hex head cap screw (1).
Use a wrench to tighten hex head cap screw.
Repeat unpinning procedure for opposite tow
point cylinder (3).
Put wrench set and screed tow arm locking pins
(12) back into toolbox and secure toolbox per