Engine Maintenance; Servicing The Air Cleaner - Toro 74942 Operator's Manual

wrench flats facing outward. Do not thread spacer
nut all of the way onto the end of the axle. Leave
approximately 3 mm (1/8 inch) from the outer surface
of the spacer nut to the end of the axle inside the nut.
9. Insert the assembled nut and axle into the wheel on the
side of the wheel with the new seal and bearing.
10. With the open end of the wheel facing up, fill the area
inside the wheel around the axle full of general-purpose
grease.
11. Insert the second bearing and new seal into the wheel.
12. Apply a thread locking adhesive to the 2nd spacer nut
and thread onto the axle with the wrench flats facing
outward.
13. Torque the nut to 8-9 N-m (75-80 in-lb), loosen, then
re-torque to 2-3 N-m (20-25 in-lb). Make sure axle
does not extend beyond either nut.
14. Reinstall the seal guards over the wheel hub and insert
wheel into caster fork. Reinstall caster bolt and tighten
nut fully.
Important: To prevent seal and bearing damage, check
the bearing adjustment often. Spin the caster tire. The
tire should not spin freely (more than 1 or 2 revolutions)
or have any side play. If the wheel spins freely, adjust
torque on spacer nut until there is a slight amount of
drag. Apply thread locking adhesive.

Engine Maintenance

WARNING
Contact with hot surfaces may cause personal
injury.
Keep hands, feet, face, clothing and other body
parts away the muffler and other hot surfaces.

Servicing the Air Cleaner

Service Interval: Every 150 hours
Every 300 hours/Yearly (whichever comes
first)—Replace the primary air filter (more often in
dusty or sandy conditions).
Every 300 hours—Check the inner air filter.
Every 600 hours—Replace the inner air filter.
Note: Check the filters more frequently if the operating
conditions are extremely dusty or sandy.
Removing the Filters
1. Disengage the PTO, move the motion-control levers to
the neutral-locked position, and set the parking brake.
2. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Release the latches on the air cleaner and pull the air
inlet cover off the air cleaner body
4. Clean the air inlet screen and cover.
5. Install the air inlet cover and secure it with the latches
(Figure 43).
2
1
1. Air inlet cover
2. Air inlet screen
6. Release the latches on the air cleaner and pull the air
cleaner cover off the air cleaner body
7. Clean the inside of the air cleaner cover with
compressed air.
32
(Figure 43).
3
4
Figure 43
3. Air cleaner body
4. Latch
(Figure
g012996
44).