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Maintenance
5. Replace the oil lter every other oil change. Clean
around oil lter and unscrew lter to remove.
Before reinstalling new lter, apply a thin coating
of oil on the surface of the rubber seal. Turn
lter clockwise until rubber seal contacts the lter
adapter then tighten lter an additional 2/3 to
3/4 turn.
6. Clean around oil ll cap and remove cap. Fill to
specied capacity and replace cap.
7. Use oil recommended in engine owner’s manual.
Do Not overll. Start the engine and check for
leaks.
Check Hydraulic Oil Level
Service Interval: Every 40 hours
1. Stop engine and wait for all moving parts to stop.
Engage parking brake.
2. Tilt seat up.
3. Clean area around hydraulic reservoir cap and
remove cap. Oil level should be to the top of the
bafe inside the tank. If not, add oil. Use only
Mobil 1 15W-50 synthetic motor oil. Replace
hydraulic reservoir cap and tighten until snug. Do
Not overtighten.
Note: The bafe is labeled “HOT” and
“COLD”. The oil level varies with the
temperature of the oil. The “HOT” level shows
the level of oil when it is at 225°F (107°C). The
“COLD” level shows the level of the oil when
it is at 75°F (24°C). Fill to the appropriate level
depending upon the temperature of the oil. For
example: If the oil is about 150°F (65°C), ll to
halfway between the “HOT” and “COLD” levels.
If the oil is at room temperature (about 75°F
(24°C)), ll only to the “COLD” level.
Check Auxiliary Hydraulic
Oil Level
Service Interval: As required
Note: Check the auxiliary hydraulic oil level if there
is evidence of a leak or the hydraulic cylinder does
not perform normally.
1. Retract the hydraulic cylinder.
2. Stop engine and wait for all moving parts to stop.
3. Tilt the seat forward.
4. Locate the auxiliary hydraulic power unit reservoir
(see Figure 9).
Figure 9
1. Auxiliary hydraulic reservoir plug
5. Clean area around the reservoir plug and remove.
Oil level should be up to the reservoir plug hole.
If not, add oil. Use only Mobil 1 15W-50 synthetic
motor oil. Replace reservoir plug and tighten until
snug. Do Not overtighten.
Check Tire Pressures
Service Interval: Every 40 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Check tire pressure in drive tires.
• For 23HP Kohler Units: The drive tires
should be inated to 13 psi (90 kpa).
• For 27HP Kohler & 31HP Briggs & Stratton
Units: The drive tires should be inated to 9
psi (62 kpa).
3. The rear caster tire(s) is semi-pneumatic and does
not need to be inated.
Note: Do Not add any type of tire liner or foam
ll material to the tires. Excessive loads created by
foam lled tires may cause failures to the hydro drive
system, frame, and other components. Foam lling
tires will void the warranty.
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