CAS40P 40 CFM / 100 PSIG
SECTION 6: MAINTENANCE
PAGE - 55
®
An Oshkosh Corporation Company
connecting rod. For additional guidance, refer to
Section 6.4.8
.
If replacement of a needle bearing ever becomes
necessary, be sure to press in the new bearing so
that the small hole through casting lines up with oil
hole in rod. Wrist pin should also be replaced.
E.
Connecting Rod — Crankshaft
Tap cap, when insert bearings are assembled to rod
and cap to make sure bearing is making contact and
tighten rod bolts with lock washers in place to prevent
loosening (torque to 25 foot-pounds). The combined
piston and connecting rod should turn slowly on the
crankshaft of their own weight if bearing adjustment
incorrect. It will be noted that ends of the inserts
extend slightly above the parting line of the rod and
cap and under no circumstance should these ends of
the inserts be filed. For additional guidance, refer to
Section 6.4.8
.
F.
Reinstall crankshaft with pistons and connecting
rods attached being careful not to damage oil feeder
ring when fitting within base lugs and being sure
there are no burrs or dirt on the pulley end of the
crankshaft that might cut the oil seal.
G.
If oil seal is to be replaced slide over the crank-
shaft and press into place in the base, the lip or seal
side toward the crankcase. Do not hammer directly
on the seal.
H.
Replace valve parts in sequence indicated in
Sec-
tion 8.2
,
Compressor Unit Assembly
, being careful
not to force any parts together when tightening this
center screw and locknut (torque to 28 foot-pounds).
After assembly depress valve plate to insure that the
valve works freely.
I.
Head Assembly — Refer to
Section 6.4.6
.
Install seat gaskets valve assemblies, cages, “O”
rings, hold down covers and cap-screws.
Tighten cap screws evenly so as not to break corners
of hold down covers (torque to 10 foot-pounds).
Assemble head to cylinder (Torque to 10 foot-
pounds).
J.
Install key and pulley after cylinder head and
finned tubes are connected.
K.
Turn pulley over by hand several times to insure
that no interference of any kind exists.
Manual #99905382 Rev 02
(JUNE 2018)
