Toro 03410TE Operator's Manual page 27

CHANGING THE SPARK PLUG
(GASOLINE ENGINES)
Check the condition of the electrodes at 100-hour inter-
vals. The correct spark plug for the engine is Champion
RH-10 or equivalent. Set the air gap at .125 in.
CHANGING THE HYDRAULIC SYS-
TEM FLUID AND FILTER
The hydraulic system filter must be changed after the
first five hours of operation, and after that, every 250
hours of operation or yearly, whichever comes first. Use
a genuine Toro oil filter for replacement. The hydraulic
fluid must be changed every 500 hours of operation or
yearly, whichever comes first.
1. Park the machine on a level surface, lower the cut-
ting units, set the parking brake and turn the engine
off.
2. If only the filter is to be changed, remove the reser-
voir cap and insert the reservoir plug (Fig. 35), to
the block outlet.
1. Reservoir plug
2. Reservoir outlet
This will retain most of the fluid in the reservoir
when the filter is removed.
3. Clean the area around the hydraulic oil filter.
Remove the filter from the bottom of the filter
housing and allow the oil to flow into a drain pan.
Use a bottom type filter wrench.
Figure 36
1. Hydraulic oil filter
4. Apply a film of oil on the filter gasket. Install the
filter by hand until gasket contacts mounting head;
then tighten the filter an additional three-fourths of
a turn.
5. Fill the reservoir to the correct level.
6. Place all controls in the neutral or disengaged posi-
tion and start the engine. Run the engine at the
lowest possible rpm to purge the system of air.
7. Run the engine until the lift cylinder extends and
retracts and forward and reverse wheel motion is
achieved.
8. Stop the engine and check the oil level in the reser-
voir; add oil if necessary.
9. Check all connections for leaks.
BACKLAPPING THE CUTTING
UNITS
The cutting units may be backlapped on the machine.
Backlap Kit, Part no. 84-5510 is available from your
authorized TORO distributor.
Backlap according to the procedures in the Toro
Sharpening Reel and Rotary Mowers Manual Form No.
80-300 PT.
Maintenance
Figure 37
27