TM 5-4310-384-13
f.
Inspect crankcase (3) for cracks or warpage. Inspect all pipe plug threads for damage. Retap threads or replace
crankcase as necessary.
g.
Inspect oil level gage (27) for cracked glass or unreadable scale. Replace as necessary.
CLEANING.
WARNING
Drycleaning solvent, P-D-680 used to clean parts is potentially dangerous to personnel and property.
Avoid repeated and prolonged skin contact by wearing rubber or non-porous gloves when handling the
solvent or material wet with drycleaning solvent. Wash hands immediately after exposure with soap and
water and use a lanolin based skin cream to prevent skin drying. Do not use near open flame or excessive
heat. Flash point of solvent is 1 000F (380C). Do not work with solvent in a closed room. Be sure there is
good ventilation or the solvent vapors will build up in the air and become a poisonous mixture which can
cause physical injury or even death.
a.
Clean ail parts of the compressor assembly with solvent.
WARNING
Clean with compressed air no greater than 30 psi. Protective eyewear must be worn when using
compressed air.
b.
Blow off parts with compressed air.
c.
Dry with clean rag.
d.
Replace breather element (16) and felt oil separator (15) if cleaning is not effective.
ASSEMBLY.
CAUTION
Do not get sealant on bearing surfaces of oil seal.
a.
Apply sealant to outside edges of oil seal (24).
b.
Install oil seal (24) in crankcase by driving squarely with block of wood and hammer.
c.
Install fill plug (23).
d.
Install oil drain cap (21) and pipe nipple (22).
NOTE
Coat all components with oil before assembly.
e.
Insert flywheel portion of crankshaft through oil seal (24) and install crankshaft (5) with bearings (19) and cups
(20) in crankcase.
f.
Install new crankcase cover gaskets (18) used as shims (.005" and .010").
g.
Position crankcase cover (17) in place and secure temporarily with capscrews (12). Check crankshaft end play
and adjust as necessary by removing or adding cover gaskets (18). Crankshaft should turn freely without binding or slop
(end play).
h.
Remove capscrews (12) and install oil separator (15) and breather element (16).
i.
Install new cover gasket (14) and breather chamber cover (13). Secure with capscrews (12).
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