4 MAINTENANCE
22
4.14 MUFFLER AND EXHAUST __________________________________________________
To protect from carbon monoxide poisoning, inspect the
complete exhaust system regularly and always replace a
defective muffler.
If you notice a change in the color or sound of the exhaust,
stop the engine immediately. Identify the problem and have
the system repaired.
Torque all exhaust manifold hardware evenly. Tighten or
replace exhaust clamps.
4.15 TIRES ___________________________________________________________________
1. Keep tires properly inflated to prolong tire life. Check
inflation pressure while the tires are cool. Inspect tread
wear.
2. Check the pressure with an accurate, low pressure
tire gauge.
3. Keep tires inflated to:
Front: - 10-12 psi (69-83 kPa).
Rear: - 8-10 psi (55-69 kPa).
4.16 WHEEL MOUNTING PROCEDURE ____________________________________________
1. Remove dirt, grease, and oil from stud thread. Do not
lubricate threads.
2. Position wheel on hub and inspect to insure full contact
between mounting surface of wheel and hub or brake
drum.
3. Finger tighten all hardware then torque hardware in
criss-cross order; always tighten nuts in the top
position.
4. Check and retorque daily until torque is maintained,
85-95 ft.lbs. (115-128 Nm).
WARNING
Exhaust fumes contain carbon monoxide that is toxic and
can be fatal when inhaled.
NEVER
operate an engine without proper ventilation.
!
CAUTION
Unless you have the proper training, tools, and
experience, DO NOT attempt to mount a tire on a rim.
Improper mounting can produce an explosion which
may result in serious injury.
!
WARNING
Make sure the mower is parked on a solid and level
surface. Never work on a mower that is supported only
by the jack. Always use jack stands.
If only the front or rear of the mower is raised, place
chocks in front of and behind the wheels that are not
raised.
!
