35
Where to Add Grease
Lubricate the grease fittings as shown on the Check
Service Reference Aid decal (Fig. 41).
Figure 41
Greasing the 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. Refer to Adjusting
the Caster Pivot Bearing, page 41.
2. Remove the hex plug. Thread a grease zerk into hole.
3. Pump grease into zerk until it oozes out around top
bearing.
4. 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, page 27. Grease
with No. 2 general purpose lithium base or molybdenum
base grease.
1. Disengage the PTO, move the motion control levers to
the neutral locked position and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Grease the fittings on the three spindle bearings
(Fig. 42).
4. Grease the idler pulley pivot (Fig. 42).
5. Grease the fittings on the push arms (Fig. 42).
M–4159
Figure 42
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. 43). Check the tires when they are cold to get the most
accurate pressure reading.
Pressure: 13 psi (90 kPa) drive wheels and caster wheels
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