Belt Maintenance; Replacing The Pump Drive Belt; Controls System Maintenance; Adjusting The Traction Control Alignment - Toro STX-38 Operator's Manual

Belt Maintenance

Replacing the Pump Drive Belt

If the pump drive belt begins to squeal or is cracked, worn,
or frayed, replace it. Contact you Authorized Service Dealer
for a replacement belt.
1. Raise the grinder and secure it with the grinder lock.
2. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Raise the back of the machine and support it on jack
stands.
4. Remove the bottom shield; refer to
Bottom Shield (page
5. Loosen the set screw on the pump drive coupler
(Figure 52).
Figure 52
1. Pump drive coupler
2. Set screw
6. Drop the coupler down away from the pulley
52).
7. Using a spring puller (contact your Authorized Service
Dealer) or stiff metal hook, pull the end of the idler
pulley spring off of the spring bolt to release tension
on the belt.
8. Remove the belt.
9. Route a new belt around the pulleys.
10. Install the idler pulley spring on the bolt.
11. Push the coupler up to engage the pulley.
12. Apply blue thread lock to the coupler set screw threads
and torque it to 10 to 12.6 N-m (90 to 110 in-lb).
13. Install the bottom shield.
Removing the
21).
3. Belt
(Figure
Controls System
Maintenance
The factory adjusts the controls before shipping the machine.
However, after many hours of use, you may need to adjust
the traction control alignment, the neutral position of the
traction control, and the tracking of the traction control in the
full forward position.
Important: To adjust the controls properly, complete
each procedure in the order listed.
Adjusting the Traction Control
Alignment
If the traction control bar does not rest flush and square
with the reference bar when in the full backward position,
immediately complete the following procedure:
1. Park the machine on a flat surface and lower the
grinder.
2. Stop the engine and remove the key.
3. Pull straight back on the traction control so the front
of the control contacts the reference bar
1. Front of the control, out of
alignment
4. If the front of the traction control does not rest square
and flush with the reference bar, loosen the flange nut
and bolt in the stem of the traction control
1. Traction control
34
(Figure
Figure 53
2. Reference bar
(Figure
Figure 54
2. Stem , bolt and nut
53).
54).