Wallenstein BXT36S, Operator'S Manual

Page: 55 / 72

9.8.3 Align the Drive Belt
A laser alignment tool or 50" (127 cm) straight edge
is necessary for this procedure. A laser alignment
tool is the most accurate.
Check the drive belt alignment after every 8 hours of
operation.
The maximum misalignment is 1/32" (1 mm).
1. Put a straight-edge tool across the face of the rotor sheave.
Point the opposite end of the straight-edge toward the
engine clutch flywheel.
Make sure that the straight-edge is parallel with the face of
the rotor sheave. See
Figure 40.
2. Do one of the following:
• If the edge of the engine clutch flywheel aligns with the
straight-edge, the drive belt is aligned. The following
steps are not necessary. See
Figure 40.
• If the edge of the engine clutch flywheel is parallel to
the straight-edge tool, but is not aligned with the rotor
sheave, align the rotor sheave. See
Figure 42 on page
56.
For instructions, see Align the Rotor Sheave on page
56.
• If the edge of the engine clutch flywheel is not parallel
(is on an angle) to the straight-edge tool, align the
engine clutch. See
Figure 41 .
For instructions, see Align the Engine Clutch.
3. Do steps 1 and 2 again to make sure the drive belt is
aligned.
02259
1
3
4
2
Figure 40 –
Check the drive belt alignment
1. Clutch flywheel
2. Point of alignment
3. Straight edge
4. Rotor sheave
9.8.4 Align the Engine Clutch
The engine mount can move and cause drive-belt misalignment.
1. Loosen (do not remove) the four engine mount bolts. See
Figure 39.
2. Turn the engine a small amount to adjust the clutch and
align the belt.
3. Check the drive belt alignment.
For instructions, see
Align the Drive Belt.
4. Do one of the following:
• If the belt alignment is correct, continue with step 5.
• If the belt alignment is not correct, do steps 2 to 4
again.
5. Tighten the four engine mount bolts.
6. Do steps 3 and 4 again.
7. Do one of the following:
• If the belt alignment is correct, continue with step 8.
• If the belt alignment is not correct, do steps 1 to 4
again.
8. Use a calibrated torque wrench to torque the four engine
mount bolts to
52 lbf•ft (70 N•m) .
9. Check the drive belt tension.
For instructions, see
Set the Drive Belt Tension on page
54.
4
3
1
2
02383
Figure 41 –
Align the engine clutch
1. Straight edge
2. Drive belt 3. Rotor sheave
4. Engine clutch flywheel
BXT36S
Wood Chipper
Service and Maintenance
55