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 your Authorized
Service Dealer for a replacement belt.
1. Park the machine on a level surface, engage the
parking brake, and lower the hydraulic lift.
2. Shut off the engine and remove the key.
3. Raise the back of the machine and support it
on jack stands.
4. Remove the bottom shield; refer to
the Bottom Shield (page
5. Loosen the set screw on the pump-drive coupler
(Figure 53).
Figure 53
1. Pump-drive coupler
2. Set screw
6. Drop the coupler down away from the pulley.
7. Using a spring puller (available from your
Authorized Service Dealer) or stiff metal hook,
pull the end of the idler pulley spring off 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 thread-locking compound 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
22).
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3. Belt
Controls System
Maintenance
Adjusting the
Traction-Control Alignment
The factory adjusts the traction 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
Reverse Position
If the traction control bar does not rest flush and
square with the reference bar when in the full
reverse position, immediately complete the following
procedure:
1. Park the machine on a level surface, engage
the parking brake (if applicable), and lower the
hydraulic lift.
2. Shut off the engine and remove the key.
3. Pull back the traction control so that the front of
the control contacts the reference bar
54).
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 nut and bolt in the stem of the traction control
(Figure 55).
35
(Figure
Figure 54
2. Reference bar
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