Checking The Tire Pressure; Checking The Wheel Lug Nuts; Checking The Wheel-Hub Slotted Nuts; Adjusting The Caster-Pivot Bearings - Toro Z Master 8000 Series Operator's Manual

Checking the Tire Pressure

Service Interval: Every 40 hours
Maintain the air pressure in the rear tires at 103 kPa
(15 psi). Uneven tire pressure can cause uneven cut.
Check the tires when they are cold, to get the most
accurate pressure reading.
Note:
The front tires are semi-pneumatic tires and
does not require air pressure maintenance.
Figure 53
Note:
Do not add any type of tire liner or foam fill
material to the tires.
Checking the Wheel Lug
Nuts
Check and torque the wheel lug nuts to 122 to 129
N∙m (90 to 95 ft-lb).
Checking the Wheel-Hub
Slotted Nuts
Service Interval: After the first 100 hours
Every 500 hours
Check and ensure that the torque of the slotted nut is
373 to 475 N∙m (275 to 350 ft-lb).
Adjusting the Caster-Pivot
Bearings
Service Interval: Every 500 hours/Yearly (whichever
1. Park the machine on a level surface, move the
speed-control lever to the N
disengage the blade-control switch (PTO), and
engage 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. Remove the dust cap from the caster and tighten
the locknut until the spring washers are flat, then
back off 1/4 turn to properly set the pre-load on
the bearings
Important:
washers are installed correctly as shown in
Figure 54
4. Install the dust cap.
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1. Spring washers
2. Locknut
45
comes first)
EUTRAL
(Figure 54 and Figure
Make sure that the spring
and Figure 55.
Figure 54
Front Caster
3. Dust cap
position,
55).
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