4000 SRM 764
Two-Stage Mast
1.
CAPCREW
2.
WASHER
3.
TRUNNION CAP
Figure 6. Mast Trunnion
WARNING
Mast assemblies are heavy and can cause an in-
jury when moving. NEVER put any part of your
body between the mast and a solid object when
the mast is being moved.
3.
Using the hoist, raise the mast to a height that
will allow the base of the mast to clear the base
of the frame.
NOTE:
The alignment block mounted to the frame
keeps the mast from tipping during installation.
4.
Align the mast directly over the open trunnions
and lower the mast until it rests on the trunnion
blocks as shown in Figure 6. Make sure the align-
ment block is resting in the angled bracket shown
in Figure 7. Install the trunnion caps, bolts, and
washers and torque to 203 N•m (150 lbf ft).
1.
ALIGNMENT BLOCK
2.
MAST ASSEMBLY
Figure 7. Alignment Block
5.
After securing the mast in the trunnions, the
mast cable must be connected to the chassis wire
harness. The mast cable will travel down and en-
ter the grommet and opening in the chassis. Con-
nect the mast cable connector to the wire harness
connector.
6.
Attach the hydraulic hose connecting the mani-
fold to the chassis frame. See Figure 8.
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