Engine Maintenance; Engine Safety; Servicing The Air Cleaner - Toro Z Master Professional 5000 Series Operator's Manual

12. With the open end of the wheel facing up, fill
the area inside the wheel around the axle full of
general-purpose grease.
13. Insert the second bearing and new seal into the
wheel.
14. Apply a thread-locking adhesive to the second
spacer nut, and thread it onto the axle with the
wrench flats facing outward.
15. Torque the nut to 8 to 9 N∙m (75 to 80 in-lb),
loosen, then torque to 2 to 3 N∙m (20 to 25 in-lb).
Note:
Make sure that the axle does not extend
beyond either nut.
16. Install the seal guards over the wheel hub, and
insert the wheel into the caster fork.
17. Install the caster bolt and tighten the 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 the torque on the
spacer nut until there is a slight amount of drag.
Apply another layer of thread-locking adhesive.

Engine Maintenance

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

Engine Safety

Shut off the engine before checking the oil or adding
oil to the crankcase.

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
the parking brake.
2. Shut off 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
(Figure 46).
4. Clean the air-inlet screen and cover.
5. Install the air-inlet cover and secure it with the
latches (Figure
37
- position, and engage
LOCK
46).