Checking the Wheel Hub
Slotted Nut
Service Interval:
After the first 100 hours
Every 500 hours thereafter
Torque the slotted nut to 420 to 461 N∙m (310 to 340
ft-lb).
Note:
Do Not use anti-seize on wheel hub.
Adjusting the Caster-Pivot
Bearing
Service Interval:
Every 500 hours/Yearly (whichever
comes first)
1.
Park the machine on a level surface, disengage
the blade-control switch, 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 (
).
4.
Tighten the locknut until the spring washers are
flat, and then back off a 1/4 turn to properly set
the preload on the bearings (
).
Important:
Make sure that the spring
washers are installed correctly as shown in
.
5.
Install the dust cap (
g228558
Figure 58
1.
Spring disc washers
Brake Maintenance
Adjusting the Parking
Brake
Service Interval:
After the first 100 hours
Every 500 hours
Check to ensure that parking brake is adjusted
properly. This procedure must be followed after the
first 100 hours or when a brake component has been
removed or replaced.
1.
Park the machine on a level surface, disengage
the blade-control switch, 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.
Raise the rear of the machine up and support
the machine with jack stands.
4.
Remove the rear tires from the machine.
5.
Remove any debris from the brake area.
6.
Release the drive wheels; refer to
Drive-Wheel-Release Valves (page 32)
.
7.
Ensure that the caliper is tightened to the
transmission.
8.
Disengage the parking brake.
9.
Install the rear linkage to the bellcrank and pin
using the spring clevis pin (
).
g297209
Figure 59
1.
Rear linkage
4.
Caliper
2.
Jam nut
5.
Wheel hub
3.
Spring clevis pin
10.
Push the caliper lever forward with finger
pressure only enough to take up the caliper
clearance to the hub (
).
11.
Loosen the jam nut on the rear linkage.
12.
Adjust the rear linkage to align the holes and
install the spring clevis pin (
).
51
Summary of Contents for Air Cool Z Master 74090
Page 69: ...g008623 Hydraulic Schematic Rev A 69 ...
Page 72: ......