(1) Install the front mount and pulley
113.
Crane Engine Front Mount and Pulley
assembly as illustrated on figure 26.
Assembly Reassembly and Installation
(2) Install the radiator (par. 78).
a. Reassembly. Reassemble the front mount and
pulley assembly in the reverse of the numerical
(3) Install the crane engine (par. 45).
sequence as illustrated on figure 27.
(4) Install the fan belts (TM 5-3810-20720).
b. Installation.
Section XVII. CRANE ENGINE TIMING GEAR COVER AND TIMING GEARS
116.
Crane Engine Timing Gear Cover and Timing
114. General
The crane engine timing gear cover is used for the
Gears Cleaning and Inspection
front engine mount and in cases the crankshaft and
camshaft gears. It is also used to mount the engine
a. Cleaning. Clean all parts with an approved
speed governor. The crankshaft and camshaft gears
cleaning solvent and dry thoroughly.
are helically cut to provide greatest meshing surface.
The crankshaft gear drives the camshaft gear at one-
b. Inspection. Inspect the gears for excessive
half engine speed. The camshaft gear drives the engine
wear and damage. Check the backlash of the timing
speed governor.
gears. Force the mating teeth as far apart as possible
with a feeler gage; if the clearance is 0.002 inch or
115.
Crane Engine Timing Gear Cover and Timing
greater, the gears must be replaced. Always replace
Gears Removal
gears in pairs.
117.
Crane Engine Timing Gear Cover and Timing
5-3810-207-20).
Gears Installation
b. Remove the engine speed governor (TM 5-
3810-207-20).
as illustrated on figure 28.
e. Remove the timing gear cover and timing gears
d. Install the engine speed governor (TM 53810-
as instructed on figure 28.
207-20).
3810-207-20).
Section XVIII. CRANE ENGINE CAMSHAFT ASSEMBLY
118. General
119. Crane Engine Camshaft Assembly Removal
The crane engine camshaft assembly is driven by
means of the camshaft gear which meshes with the
crankshaft gear mounted on the crankshaft.
The
camshaft is supported in the cylinder block by four
removable bearings. The camshaft, in conjunction with
the tappets, opens and closes the valves. The camshaft
operates the oil pump through a gear on the oil pump
and gear on the camshaft.
e. Remove the camshaft assembly as instructed
on figure 29.
TAGO 5030A
61
