TM 5-4310-372-14
AIR COMPRESSOR - continued
5-7. CLEANING, INSPECTION AND REPAIR - continued
6.
Connecting Rod and
a.
Inspect for. wear or
67
Crankshaft “Center”
other damage.
Bore
Bushing
(ID) should equal 1.375
inches, +.003, -.000 in.
(3.493 cm, +.0076, -.000 cm).
Outside diameter should
equal 1.748 inches, +.000,
-.003 inches (4.44 cm,
+.000,
-.0076 cm).
b.
Replace if worn or damaged.
WARNING
D r y c l e a n i n g s o l v e n t P - D - 6 8 0 , u s e d t o c l e an
p a r t s ,
i s p o t e n t i a l l y d a n g e r o u s t o p e r s o n n el
a n d p r o p e r t y .
Avoid repeated and prolonged
s k i n c o n t a c t b y w e a r i n g r u b b e r o r s o l v e n t
impermeable gloves when handling the solvent or
m a t e r i a l w e t w i t h d r y c l e a n i n g s o l v e n t.
Wash
hands immediately after exposure with soap and
w a t e r a n d u s e a l a n o l i n b a s e d s k i n c r e a m to
p r e v e n t s k i n d r y i n g .
Do not use near open
flame or excessive heat.
F l a s h p o i n t o f s o l-
vent is 100°F (38°C).
E n s u r e t h a t v e n t i l a t i o n
is adequate to reduce solvent vapor concentra-
tions below acceptable
7.
Piston & Piston Pins
a .
b.
c .
t h r e s h o l d l i m i t v a l u e s.
Clean the piston and pin
60,66
with solvent.
Pay
s p e c i a l a t t e n t i o n to
cleaning the piston ring
grooves and the oil return
holes in the wiper ring
grooves.
Inspect for scoring, cracks,
chipping, excessive wear,
or other damage.
Replace the piston or
pin if excessive wear
or damage is discovered.
5-11
