Ingersoll-Rand 900829, Maintenance Manual

Page: 73 / 142

Compressor Maintenance
71
3. Place the installer against the pulley/bearing
and drive over the compressor nose with a
hammer or arbor press until bearing is seated
against front housing.
Figure 64: Pulley Installation
4. Reinstall pulley retaining snap ring with snap
ring pliers. If a bevel is present on the snap
ring, it should face up (away from the body of
the compressor).
Figure 65: Install Snap Ring
Armature Plate Installation
1. Install clutch shims.
2. Shim selection determines clutch air gap.
When installing a clutch on a used
compressor, try the original shims first. When
installing a clutch on a compressor that has
not had a clutch installed before, first try 0.04,
0.02, and 0.004 in. (1.0, 0.5, 0.1 mm) shims.
Figure 66: Armature Plate Installation
Keyed Shaft – Wobble Compressor
1. Install shaft key with pliers.
2. Align keyway in armature assembly to shaft
key. Using driver and a hammer or arbor
press, drive the armature assembly down over
the shaft until it bottoms on the shims.
Figure 67: Install Shaft Key