28
2. Raise the seat.
3. Remove the dipstick cap from the filler neck (Fig. 31)
and wipe it with a clean rag. Insert the dipstick cap onto
the filler neck; then remove it and check the oil level.
4. If the level is not within 1/2 in. (13 mm) from the full
mark on the dipstick, add SAE 10W-30 engine oil to
raise the level to the FULL mark. Do not overfill.
5. Install the dipstick filler cap onto the filler neck
(Fig. 31).
6. Run the engine for approximately 1 minute. Check the
reservoir oil level and add oil as required.
m–5155
1
Figure 31
1. Dipstick cap
Changing the Hydraulic
System Oil
The hydraulic system oil must be changed after every 250
hours of operation or yearly, whichever comes first. The
reservoir has a capacity of approximately 4.73l (5 U.S.
quarts).
1. Park the machine on a level surface, lower the cutting
unit, engage the parking brake, and stop the engine.
2. Clean the area around the hydraulic oil filter and
remove the filter from the bottom of the filter housing.
Use a bottom type filter wrench (Fig. 32).
3. Disconnect the tube assembly and hose assembly from
the reservoir and allow the oil to flow into a drain pan
(Fig. 32).
Note: To drain remaining oil in the system, disconnect the
spark plug wires and crank the engine for 15 seconds. This
will pump the remaining oil out of the system through the
tube assembly. Do not crank the engine for more than 15
seconds.
4. Install the new hydraulic filter onto the bottom of the
filter housing (Fig. 32).
5. Install the tube assembly and hose assembly to the
reservoir (Fig. 32).
m–5156
1
3
2
4
Figure 32
1. Filter
2. Reservoir
3. Hose assembly
4. Tube assembly
6. Fill the reservoir to the proper level; refer to Checking
the Hydraulic System Fluid, page 27.
7. Place all controls in the neutral or disengaged position
and start the engine. Run the engine at the lowest
possible RPM to purge the system of air.
8. Run the engine until the lift cylinder extends and
retracts and forward and reverse wheel motion is
achieved.
9. Stop the engine and check the oil level in reservoir. Add
oil if necessary.
10. Check all connections for leaks.
Changing the Hydraulic Oil
Filter
The hydraulic oil filter keeps the hydraulic system
relatively free of contaminants. However, the hydraulic oil
filter must be serviced at regular intervals. The intervals
are: initially, after the first 5 hours of operation, and
thereafter every 250 hours of operation or yearly,
whichever comes first. Use a genuine Toro oil filter for
replacement.
1. Remove the hydraulic oil filter from the mounting head.
Use a bottom type filter wrench (Fig. 32). Dispose of
the filter properly.
2. Apply a film of oil on the gasket. Install the filter by
hand until the gasket contacts the mounting head; then
tighten the filter an additional 3/4 turn.
3. Start the engine and check for oil leaks. Allow the
engine to run for about 2 minutes so that any air in the
system is purged. Then shut the engine off.
4. Check the oil level in the reservoir; refer to Checking
the Hydraulic System Fluid, page 27.
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