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Figure 48
Grease Front Caster Pivots
Lubricate the front caster pivots once a year.
1. Remove the dust cap and adjust the caster pivots. Keep
dust cap off until greasing is done.
2. Adjust the caster pivot bearing. Refer to Adjusting the
Caster Pivot Bearing, page 40.
3. Remove the hex plug. Thread a grease zerk into hole.
4. Pump grease into zerk until it oozes out around top
bearing.
5. Remove grease zerk in hole. Reinstall hex plug and
cap.
Greasing the Bearings
The cutting unit must be lubricated regularly. Refer to the
Recommended Maintenance Schedule on page 31. Grease
with No. 2 general purpose lithium base or molybdenum
base grease.
1. Stop the engine, set the parking brake, remove the key
and disconnect the spark plug wires from the spark
plugs.
2. Grease the fittings on the three spindle bearings
(Fig. 49).
3. Grease the idler pulley pivot (Fig. 49).
4. Grease the fittings on the push arms (Fig. 49).
Figure 49
Where to Add Light Oil or Spray
Lubrication
Lubricate the machine in the following areas with spray
type lubricant or light oil. Lubricate every 160 hours.
Seat switch actuator.
Brake handle pivot.
Brake rod bushings.
Motion control bronze bushings.
Checking the Tire Pressure
Maintain the air pressure in the front and rear tires as
specified. Uneven tire pressure can cause uneven cut.
Check the pressure at the valve stem after every 50
operating hours or monthly, whichever occurs first
(Fig. 50). Check the tires when they are cold to get the
most accurate pressure reading.
Pressure: 13 psi (90 kPa) drive wheels and caster wheels.
39
M–4269
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