Engine Maintenance; Servicing The Air Cleaner - Toro Z Master 74925TE Operator's Manual

13. Torque the nut to 75-80 in-lb (8-9 N-m), loosen,
then re-torque to 20-25 in-lb (2-3 N-m). 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. Reapply 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 250 hours—Replace the
primary air filter.
Every 250 hours—Check the
secondary air filter.
Every 500 hours—Replace the
secondary air filter.
Note: Service the air cleaner more frequently if
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. Push down to release the retaining clamps on the air
cleaner and pull the air cleaner cover off of the air
cleaner body (Figure 47).
4. Clean the inside of the air cleaner cover with
compressed air.
5. Gently slide the primary filter out of the air cleaner
body (Figure 47). Avoid knocking the filter into the
side of the body.
6. Remove the secondary filter only if you intend to
replace it.
Important: Never attempt to clean the
secondary filter. If the secondary filter is dirty,
then the primary filter is damaged and you
should replace both filters.
7. Inspect the primary filter for damage by looking into
the filter while shining a bright light on the outside
of the filter. Holes in the filter will appear as bright
spots. If the filter is damaged discard it.
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