51
BXTR6438
Rotor Sheave Alignment
If the rotor sheave loosens on the shaft, it can become
misaligned with the engine clutch, resulting in poor belt
alignment.
01358
Fig. 20 –
Rotor Sheave Misalignment
1.
Remove the drive belt.
2.
Remove the set screw from the sheave (1).
3.
Remove the sheave bolts (5) and the RPM Indicator Plate
(4). Thread the bolts into the puller holes on the sheave
hub.
01359
1
2
3
4
5
6
Fig. 21 –
Rotor Sheave
1. Set Screw
2. Sheave Hub
3. Shaft key
4. RPM Indicator Plate
5. Sheave Bolts
6. Sheave
4.
Turn in the bolts evenly in 1/4-turn increments to pull the
hub and the sheave slightly apart so they can move on the
shaft.
5.
Lightly tap the sheave hub with a block of wood to move it
in or out on the shaft so it is re-aligned with engine clutch
sheave. Confirm with the straight edge along the face of the
engine clutch and rotor sheave.
6.
Once aligned, insert the hub bolts and snug them up to the
sheave. Recheck alignment.
7.
Tighten hub bolts evenly in 1/4-turn increments until firmly
seated. Install and tighten the set screw.
8.
Re-check the alignment again with the straight edge once
the bolts are tight. Re-check belt tension.
9.
Reinstall the belt guard.
