White Outdoor 693 - Manual (Page 16)

16
SECTION 10: MAINTENANCE
WARNING: Disconnect the spark plug
wire and ground against the engine before
performing any adjustments, repairs or
maintenance.
TROUBLE SHOOTING
Refer to the trouble shooting chart for engine
problems.
ENGINE
Refer to the separate engine manual for engine
maintenance instructions.
Service air cleaner every 10 hours under normal
conditions. Clean every few hours under extremely
dusty conditions. To service the air cleaner, refer to
the separate engine manual packed with your unit.
The spark plug(s) should be cleaned and the gap
reset once a season. Spark plug replacement is
recommended at the start of each mowing season;
check engine manual for correct plug type and gap
specifications.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and
follow instructions carefully.
Oil Drain Sleeve
Your lawn tractor has a plastic oil drain sleeve
packed with the loose parts for your convenience in
draining oil from the crankcase. To drain the oil,
snap small end of oil drain sleeve onto oil sump. See
Figure 19. Remove drain plug and drain oil into a
suitable container.
Figure 19
FUEL FILTER
Your unit is equipped with a replaceable in-line fuel
filter. Replace filter whenever contamination or
discoloration is noticed. Order replacement filter
through your authorized engine service dealer.
HYDROSTATIC TRANSMISSION
COOLING
The hydrostatic transmission is cooled by the oil, fan
and fins. If the hydrostatic transmission runs hot,
check to see if the fan is in operating condition, the
oil level is correct and the fins are clean.
NOTE: DO NOT use high pressure water spray or
steam to clean the hydrostatic transmission.
CLEANING ENGINE AND DECK
Any fuel or oil spilled on the machine should be
wiped off promptly. Grass, leaves, and other dirt
must not be left to accumulate around the cooling
fins of the engine or on any part of the machine.
Clean the underside of the deck after each mowing.
WHEEL ADJUSTMENT
The caster (forward slant of the king pin) and the
camber (tilt of the wheels out at the top) require no
adjustment. Automotive steering principles have
been used to determine the caster and camber on
the tractor. The front wheels should toe-in between
1/16 - 5/16 inch.
To adjust the toe-in, follow these steps.
1. Remove the hex nut and lock washer, and drop
the end of the tie rod from the axle bracket. See
Figure 20.
2. Loosen the hex jam nut on tie rod.
3. Adjust the tie rod assembly for correct toe-in.
Figure 20
Oil Drain
Sleeve
Sump
Oil
Tie
Rod
End
Tie Rod
Hex Jam
Nut
Wheel
Bracket
Hex Nut
Lock Washer