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TM5-4210-229-14&P
5-20. COMPRESSOR REPAIR (Continued).
e.
Remove unloader cover (10) and washer seal
(11).
f.
Remove unloader pin (12), O-ring (13) and
spring (14).
g.
Remove four bolts (15) holding cylinder head
assembly (3) to the cylinder block (2).
h.
Lift head (3) off block (2) and remove gasket
(16).
i.
Place the cylinder head assembly (3) on a table
and turn the assembly bottom sideways.
j.
Remove exhaust valve seat (16) using a 3/4 inch
allen wrench.
k.
Remove valve (17), spring (18) and copper
washer (19).
l.
Remove inlet valve cage (20) using a 3/4 inch
allen wrench.
m. Remove valve (21), spring (22) and copper
washer (23).
n.
Remove four bolts (24) and lockwashers (25)
holding cylinder block (2) to the crankcase
(1).
o.
Lift the block off the crankcase (1) and remove
gasket (26).
p.
Turn the crankcase (1) on its side to expose the
connecting rod to crankshaft bolts (27).
q.
Slowly rotate the crankshaft so that the con-
necting rod cap (28) is at the bottom of its
stroke. Remove the bolts (27), cap (28) and
rod (29).
r.
Lift the piston (30) and connecting rod (28)
through the top of the crankcase (1).
s.
Remove buttons (31) from piston wrist pin
holes.
NOTE
Do not remove the piston wrist pin from the pis-
ton since the piston and rod must be replaced as
an assembly if either part is damaged.
5-44
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