Ingersoll Rand UP5S 11 Installation, Exploitation Et Maintenance page 27

BELT CHANGE / GAS STRUT CHANGE PROCEDURE

A�� Gas strut��
B�� Support bracket (part of pivoted assembly)��
C�� Tension cam��
Figure 1
80448418 Rev.C
RELEASED 20/Jul/2016 17:56:55 GMT
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MAINTENANCE
1�� Stop the machine, electrically isolate and vent all
trapped pressure��
2�� Remove the side cover from the machine��
3�� Fit a 1/2" square drive wrench in the tension cam
located above the airend (access from front door)��
Turn clockwise 1/4 turn to Position II to release gas
strut tension on the belts��
4�� Using a small screwdriver under the spring clip, ease
the ball ends off the spherical studs at the ends of
the gas strut��
5�� Replace the gas strut and the studs at the same time
by removing and replacing the studs then pushing
the new gas strut firmly onto the studs until it clicks
into place��
6�� Turn the tension cam clockwise 1/4 turn to
Position III to raise and support the airend�� Place a
block of wood or similar under the separator tank for
support��
7�� Replace the belts from the left side of the machine��
8�� Turn the tension cam counter–clockwise 1/2 turn to
Position I to tension the gas strut��
9�� Spin the drive to check alignment of the belt ribs on
the pulleys (sheaves)��