CAS40P 40 CFM / 100 PSIG
SECTION 6: MAINTENANCE
PAGE - 45
®
An Oshkosh Corporation Company
6.4.9 RE-ADJUSTING OR REPLACING THE
COMPRESSOR DRIVE BELTS
To access the package for drive belt maintenance,
the drive assembly access panel must be removed.
Consult
Section 6.4.1.2, Removing and Replacing
a Side Panel
to remove the drive assembly access
side panel.
To readjust or replace the compressor drive belts,
refer to
Figures 6-12
and
6-13
. The belts are slack-
ened by pivoting the hydraulic motor assembly’s
bracket, which temporarily repositions the hydraulic
motor sheave enough to allow removal and replace-
ment of the belt. Note that the compressor sheave
remains stationary.
1. Loosen the horizontal tap bolt nut [
F
]. Loosen
enough to allow movement, but
DO NOT
remove the tap bolt.
2. Loosen the adjustment/locking nut [
E
].
3. Loosen the vertical tap bolt [
C
] to allow for the
hydraulic motor bracket [
B
] to pivot the motor
assembly angle [
K
] toward the compressor
unit, which causes the belt to slack.
4. Remove the belts when enough slack allows
for them to slip off of the compressor sheave
[
N
].
5. Re-thread the new drive belts into place over
the compressor sheave [
N
] and motor drive
sheave [
J
].
6. Adjust the vertical tap bolt [
C
] to tighten the
belts by pivoting the hydraulic motor bracket
[
B
] away from the compressor unit [angle
K
],
which causes tension in the belt.
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.
NOTE
For worn or damaged belts:
Always replace all the drive belts at the
same time, regardless of any single
belt’s condition.
Manual #99905382 Rev 02
(JUNE 2018)
Summary of Contents for IMT CAS40P
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