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 3500 ENGINES
DISASSEMBLY AND ASSEMBLY
HYDRAMECHANICAL SHUTOFF DRIIVE
INSTALL HYDRAMECHANICAL SHUTOFF DRIVE
Tools Needed
A
B
1P510
Driver Group
1
1P 1855
Pliers
1
1.
If necessary, make a replacement of dowels ( 1)
in gear assembly (2). The dowels must extend
9.5 + 0.5 mm (.374 + .020 in.) from the gear.
Put gear assembly (2) in position on the end of
the camshaft and install the bolts to hold it.
Tighten the bolts evenly to a torque of 100 + 15
Nm (75 + 10 lb. ft.). Hit the gear assembly with
a hammer and tighten the bolts again to the
same torque. Do this until the torque does not
change.
If dowels (5) were removed, install the new
2.
dowels until they extend 6.0 + 0.5 mm (.236 +
.020 in.) from the housing assembly.
3.
Use tool group (A) to install two bearings (4) in
the drive gear bore until they are 1.5 + 0.5 mm
(.059 + .020 in.) from the ends of the bore.
4.
Put drive gear (3) in position in the housing
assembly.
5.
Put washer (8) in position and use tool (B) to
install snap ring (7) to hold the washer and drive
gear in position.
6.
Use tool group (A) to install bearing (6) in the
housing assembly until it is 26 1 mm (1.02 +
.04 in.) below surface (X). Use tool group (A)
and install seal (10) to the bottom of the bore.
Make sure the lip of the seal is toward the
engine as shown and put clean engine oil on the
lip.
7.
If dowels (9) were removed, install the new
dowels until they extend 6.0 + 0.5 mm (.236 +
.020 in.) from the housing.
8.
Install shutoff drive housing assembly
(13) and
the bolts to hold it on the flywheel
housing.
Make sure the teeth of drive gear
(3) are
correctly engaged with the teeth
of gear
assembly (2).
9.
Install tube assemblies (11) and (12) on the X
housing assembly and the engine.
end by:
a)
install hydramechanical shutoff control
b)
install tachometer drive
346
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