Drive System Maintenance; Checking The Tire Pressure; Adjusting The Self-Propel Drive; Changing The Hydraulic-Transmission Fluid - Toro 23510 Operator's Manual

Drive System
Maintenance
Note: The hydrostatic transmission is factory-filled and
sealed. It does not require maintenance. For service, contact
your Authorized Service Dealer.

Checking the Tire Pressure

Service Interval: Before each use or daily
Maintain the air pressure in the tires as specified. To get the
most accurate reading, check the tires when they are cold.
Pressure: 165 kPa (24 psi)
Figure 23
1. Valve stem

Adjusting the Self-propel Drive

If the machine creeps either forward or rearward when
the engine is on and the self-propel drive bail is in neutral,
complete the following procedure:
1. Stop the engine, wait for all moving parts to stop, and
remove the spark-plug wire.
2. Raise the cutting blades to the highest position.
3. Squeeze the self-propel drive bail to the handle until
the transmission is fully stroked.
•
If the bail contacts the handle, release the bail.
Loosen the top adjustment nut 1 turn, and tighten
the bottom adjustment nut. Squeeze the bail to
the handle. Repeat this step until there is a gap of
up to 3.2 mm (1/8 inch) between the self-propel
drive bail and the handle. Once the gap is achieved,
proceed with step 4.
1
G003793
Changing the
Hydraulic-transmission Fluid
Service Interval: Every 100 hours
23
Figure 24
1. Adjustment nuts
2. Cable
3. Jam nut
•
If the bail does not contact the handle, then
proceed to step 4.
4. Remove the hairpin and rotate the turnbuckle clockwise
1 full turn.
5. Install the hairpin and rotate the jam nut against the
turnbuckle.
6. Start the engine and test the adjustment, repeating this
procedure as necessary.
1. Stop the engine, wait for all moving parts to stop, and
remove the spark-plug wire. Engage the parking brake.
2. Remove the transmission from the machine.
3. Carefully clean the area around the expansion tank and
oil-fill port.
Important: Do not allow any dirt or contamination
to enter the hydraulic system.
4. Remove and retain the oil-fill port fitting, and position
the transmission so that the oil will drain completely
out of the housing.
5. When all the oil has drained from the transaxle, remove
and retain the #10-32 x 1/2 inch self-tapping screw
and the ratchet fastener holding the expansion tank
to the housing.
6. Remove the expansion tank, and drain the oil.
Note: Do not remove the vent cap from the tank.
Note: Do not remove the tank hose or the O-ring
unless a replacement is needed.
4. Turnbuckle
5. Self-propel drive bail