TM 5-4310-335-14
(7) Install elbow (6), nut (7), ring (8) and packing (9).
(8) Install outlet tube (1), elbow (2), nut (3), ring (4) and packing (5).
(9) Apply torque as applicable, see table 5-2 for torque values.
5-11 Engine Assembly
a General. The gasoline engine is located over the axle, at approximately the midpoint of the air
compressor. The engine is secured to the frame assembly by heavy right-angled engine mounting
brackets, rubber shockmounts, bolts, washers and nuts. The gasoline engine provides the required
rotational force to drive the air compressor.
b Maintenance. Field maintenance personnel are authorized to replace the gasoline engine and the
compressor/cooler assembly. In addition, field maintenance personnel are authorized to perform
adjustment and/or replacement of the gasoline engine contact assembly, spark plugs, condenser,
carburetor and air cleaner assembly, rope starter, muffler assembly, fuel tank with fitting, filler cap
assembly and fuel line assembly after removal of the gasoline engine from the air compressor. Refer
to TM 5-2805-257-14 for engine maintenance.
c Removal.
NOTE
Provide suitable support under engine before removing mounting hardware.
(1) Disconnect the fuel supply line (13, fig. 5-5) at the fuel line filter and drain the fuel tank into a
suitable container. Drain the oil from the engine crankcase by removing the plug in the crankcase
bottom.
(2) Block up the right hand side of the compressor preparatory to removing the right hand wheel and
hub assembly. Remove the hub cap of wheel and hub assembly (170, fig. 5-6), cotter pin (171),
nut (172) and washers (173 and 174). Remove the wheel and hub assembly.
(3) Support the engine with suitable blocks and remove the bolts (66 and 69, fig. 5-6), spacers (70),
and flashers (64, 65, 67 and 68).
(4) Remove the right hand engine mount (191, fig. 56) from the assembly by removing nuts (192 and
199), washers (193 and 200). The cup washers and shockmount components may be lifted up as
a unit.
(5) Disconnect the spark plug leads from the plugs, to provide additional clearance.
(6) Slide the engine (63, fig. 5-6) sideways to the right side of the air compressor, and remove the
engine, tipping it as necessary.
(7) Remove the screw (62, fig. 5-6) and the splined crankshaft adapter (61).
WARNING
Dry cleaning solvent, P-D-680, used to clean parts is potentially dangerous to
personnel and property. Do not use near open flame or excessive heat.
Flash point of solvent is 100F- 138F(38 to 590C).
C
d Cleaning. Clean the engine with cleaning solvent, Fed. Spec. P-D-680, and dry thoroughly using
compressed air.
e Inspection.
(1) Inspect metal parts for dents, scratches, breaks, cracks, burrs, rough edges or thread damage.
(2) Inspect engine externally for damage or defective parts.
(3) Inspect crankshaft spline coupling for scoring and wear.
(4) Repair any damage or replace parts which obstruct moving parts or could cause damage to the
equipment.
f
Installation.
(1) Install the engine, tipping it as necessary, and slide the engine (63, fig. 5-6) sideways to the left
side of the air compressor.
(2) Connect the spark plug leads to the plug.
(3) Install the right-hand engine mount (191) on the assembly by installing nuts (192 and 199),
washers (193 and 200). The cup washers and shockmount components may be lowered as a unit.
(4) With the engine supported with suitable blocks, install the bolts (66 and 69), spacers (70), and
washers (64, 65, 67 and 68).
(5) With the right-hand side of the compressor blocked up preparatory to installing the right hand
wheel and hub assembly. Install the hub cap of wheel and hub assembly,
(6) Connect the fuel supply line (13, fig. 5-5) at fuel line filter.
(7) Tighten all bolts, nuts and connections. Refer to the torque values listed in table 5-2.
(8) With the engine securely mounted in the frame and the fuel supply hose connected, replenish the
fuel supply in the tank. Refill the engine crankcase with the specified lubricant (see the lubrication
order).
(9) Install the splined crankshaft (61) on
5-14
