CAS40P 40 CFM / 100 PSIG
SECTION 6: MAINTENANCE
PAGE - 43
®
An Oshkosh Corporation Company
1.
Assemble assembly into tapped hole in
crankshaft (L. H. Threads). Apply wrench to
weight retainer to tighten snugly. Do not bend
wings of weight retainer.
2. Assemble end cover [
L
] end cover gaskets [
A
,
B
,
C
and
D
] to pump base with capscrews
[
M
]. Check end play of crankshaft in
accordance with
Section 6.4.13.1,
Paragraph A
.
3. Insert plunger [
K
] into valve elbow assembly
[
P
,
Q
and
R
] and screw into end cover until
part of valve [
Q
] can be seen when looking
into tube opening of elbow [
R
]. Do not screw
elbow into end cover too far or unloader will
not operate properly.
4. Secure valve elbow assembly in position by
tightening jam nut [
P
].
5. Connect unloader tube [
S
] to elbow in high
pressure discharge hold-down cover and
valve elbow [
R
].
6. Connect breather tube to elbow in head and
to straight connector [
N
] in end cover.
NOTE:
When assembling unloader unit, coat plunger
[
K
] and rivets [
E
] with good grade of machine oil.
Leakage of air out through the unloader valve elbow
opening, after the unit has been shut off for a time, is
an indication of a check valve leak and should be
corrected by repair or replacement.
6.4.8 PISTON RING MAINTENANCE
To maximize the accessible work space needed for
compressor unit maintenance, both side panels
(drive assembly access panel and instrumentation
panel) must be removed. Consult
Section 6.4.1.2
,
WARNING
Before performing maintenance:
Shut down machine, relieve all system
pressure and lock out all power, as per
the Safety Section of this manual. If
machine is hot, allow package to cool
before removing any panel.
NOTE THAT THE SYSTEM CAN BE
STARTED REMOTELY:
Always clearly tag the start-up
instrumentation against accidental
system start-ups during maintenance.
Manual #99905382 Rev 02
(JUNE 2018)
