Maintenance Work; Readjusting The Tension Of The V-Belts And Quick-Release Bushings Of The V-Belt Pulleys - Ingersoll-Rand GHH RAND SILU CG80 Operating Manual

4.4

Maintenance work

4.4.1 Readjusting the tension of the V-belts and quick-release bushings of the V-belt
pulleys
NOTE
For the maintenance of the belt drive of a compressor unit based on the CG80 compressor stage
(third-party manufacturer), only the instructions from the manufacturer are applicable.
The following applies to the CG600 unit:
NOTICE
ELONGATED V-BELT!
During the initial 2 operating hours, due to settling, the V-belts elongate and quick-release bushings of
the V-belt pulleys lose the correct pretensioning.
‣
After the initial 2 operating hours, the V-belts and quick-release bushings of the V-belt pulleys must
be retensioned.
‣
Loosen the screws (1) and take off the V-belt cover
(2).
Adjusting the tension of the quick-release
bushings of the V-belt pulleys
‣
Retighten the V-belt pulley screws (4 and 5).
Quick-release bushing tightening torques
Belt pulley nomi-
nal diameter
125 mm
140 mm
160 mm
180 mm
200 mm
224 mm
250 mm
280 mm
315 mm
47757778 A
Quick-release Tightening
bushings torque
2012 31 Nm
2517 48 Nm
3020 90 Nm
3525 112 Nm
Maintenance/repair
23