(3) Inspect the tubing for cracks, breaks,
(2) Remove the hex nut (10, A, fig. 18)
or dents and replace all unserviceable
that secures the crankshaft flywheel
parts.
(13) to the compressor crankshaft
(11),
c. Installation.
(3) Remove the crankshaft flywheel and
(1) Release valve unloader tube.
the machine key (12 ) from the crank-
(a) Install the two elbows (11) in the
shaft.
exhaust manifold (1) and in the
governor housing cover (10).
(1) Clean all parts with an approved
(b) Position the release valve unloader
cleaning solvent.
tube (28 ) and connect the coupling
(2) Inspect the flywheel for chips and
nuts (7) to the two elbows (11) in
cracks.
the manifold (1) and governor
(3) Inspect the key for chips, burs, and
housing cover (10).
snug fit.
(2) Crankcase breather tube.
(4) Inspect the threads on the nut for
(a) Install the two adapters (6) in the
damage.
intake manifold (4) and the gov-
(5) Replace any defective parts.
ernor housing (10).
c. Installation.
(1) Insert the key (12) and install the
tube (8) and connect the coupling
flywheel (13) on the crankshaft (11).
nuts (7) to the two adapters in the
(2) Install the hex nut (10) to secure the
manifold and the governor housing.
crankshaft flywheel to the crankshaft.
(3) Install and adjust the V-belt (par.83).
a. Removal. Turn off the outside power
source or stop the engine. Release all air from
Turn off the outside power
a. Removal.
the compressor by opening the draincock.
source or stop the engine. Release all air from
(1) Low-pressure intake manifold
the compressor by opening the draincock.
(1) Release valve unloader tube.
(a) Loosen the coupling nuts (7, fig. 14)
(b) Remove the crankcase breather
of the release valve unloader tube
tube (par. 87).
(28). Remove the tube from the
elbow (11) in the exhaust manifold
that secure the intake manifold (4)
(1) and the elbow (11) in the gov-
to the studs on the cylinder block,
ernor housing cover (10).
and remove the manifold.
(b) Remove the two elbows from the
(d) Remove the studs.
manifold and governor housing
(2) Low pressure exhaust manifold.
cover.
(a) Loosen the compression nut (25)
(2) Crankcase breather tube.
and disconnect the intercooler (29)
(a) Loosen the coupling nuts (7) of the
from the low-pressure exhaust and
crankcase breather tube (8). Re-
manifold (2).
move the tube from the adapter (6)
(b) Remove the hex nuts (3) that se-
in the governor housing.
cure the manifold to the studs and
(b) Remove the two adapters from the
remove the manifolds.
manifold and governor housing.
(c) Remove the studs.
b. Cleaning and Inspection.
(3) High-pressure intake manifold.
(1) Wipe the tube assemblies with a cloth
moistened with an approved cleaning
(a) Remove the low-pressure exhaust
solvent, and dry thoroughly.
manifold before removing the high-
pressure intake manifolds ( (2)
(2) Blow out the tubing with compressed
air.
above).
