SECTION 6: MAINTENANCE
AIR N ARC
®
300 SERIES ALL-IN-ONE POWER SYSTEM
®
PAGE - 76
090010-OP_r0
plate enough to allow the serpentine belt [
F
]
to be removed.
5. Remove serpentine belt [
F
].
6.5.7.2 P
ART
II – A
CCESSING
THE
C
OMPRESSOR
U
NIT
S
HAFT
S
EAL
1. Loosen and remove the four (4) M8
capscrews [
G
], and also the washers [
H
],
and sheave washers [
J
] securing drive
sheave [
K
] into place.
2. Remove the drive sheave [
K
] from the end of
the male rotor drive shaft [
Y
].
3. Remove key [
X
] from the groove in the end of
the male rotor drive shaft [
Y
].
4. Remove the retaining ring [
Q
] from the end of
the male rotor drive shaft [
Y
].
5. Remove the four (4) capscrews [
M
], lock
washers [
N
], and flat washers [
P
] securing
the tensioner plate [
L
] and front cover [
R
] to
the front of the compressor unit.
6. Remove the front cover [
R
] to expose the seal
assembly. Remove the worn shaft seal ring
[
T
], seal o-ring [
U
], inner ring [
V
], and spacer
[
W
] from the end of the male rotor drive shaft
[
Y
].
7. Wipe down any excess contaminants that
may have accumulated on the male rotor
drive shaft.
8. Replace spacer [
W
] with its new counterpart
from the kit.
9. Replace inner ring [
V
] with its new counterpart
from the kit; the inner ring should be gently
tapped into place using the tool as a guide.
Note that it should seat snugly on the spacer
[
W
].
10. Replace metal seal o-ring [
U
] within the lip-
end of the new shaft seal ring [
T
] (both parts
from the kit).
11. Gently tap the shaft seal ring [
T
] onto the
male rotor [
Y
].
NOTE
Before attempting to affix the seal to the
shaft, make note that the lip-end side of
the shaft seal (which contains the seated
metal seal o-ring [U]), faces the rotor.
