Drive System Maintenance; Inspecting The Tires; Checking The Torque Of The Wheel Nuts; Checking The Front Wheel Alignment - Toro Workman 07390H Operator's Manual

Drive System
Maintenance

Inspecting the Tires

Service Interval: Every 100 hours
Front tires air pressure specification: 220 kPa (32
psi)
Rear tires air pressure specification: 124 kPa (18
psi)
Operating accidents, such as hitting curbs, can
damage a tire or rim and also disrupt wheel alignment,
so inspect the tire condition after an accident.
Important:
Check the tire pressure frequently
to ensure proper inflation. If the tires are not
inflated to the correct pressure, the tires will wear
prematurely and may cause 4-wheel drive to bind.
Figure 53 is an example of tire wear caused by
under-inflation.
Figure 53
1. Under-inflated tire
Figure 54 is an example of tire wear caused by
over-inflation.
Figure 54
1. Over-inflated tire
Checking the Torque of the
Wheel Nuts
Service Interval: After the first 2 hours
After the first 10 hours
Every 200 hours
WARNING
Failure to maintain proper torque of the wheel
nuts could result in failure or loss of a wheel
and may result in personal injury.
Torque the front and rear wheel nuts to 109
to 122 N∙m (80 to 90 ft-lb) after 1 to 4 hours
of operation and again after 10 hours of
operation. Torque the wheel nuts every 200
hours thereafter.
Checking the Front Wheel
Alignment
Service Interval: Every 400 hours/Yearly (whichever
1. Ensure that the tires are facing straight ahead.
2. Measure the center-to-center distance (at axle
height) at the front and rear of the steering tires
(Figure 55).
Note:
The measurement must be within 0 ± 3
mm (0 ± 0.12 inch) at the front of the tire then at
the rear of the tire. Rotate the tire 90° and check
the measurement.
g010294
Important:
consistent locations on the tire. The machine
should be on a flat surface with the tires
facing straight ahead.
g010293
1. Front of the machine
2. 0 ± 3 mm (0 ± 0.12 inch)
front to rear of the tire
3. Adjust the center-to-center distance as follows:
46
comes first)
Check the measurements at
Figure 55
3. Center to center distance
g009169