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Exmark Lawn Tractor User Manual

Page 32

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4.1.15

Lubricate grease fittings:

Service Interval: Refer to chart.

a) Stop engine, wait for all moving parts to stop, and remove key.

b) Lubricate fittings with one to two pumps of NGLI grade #2 multi-purpose

gun grease.

Refer to the following chart for fitting locations and lubrication schedule.

LUBRICATION CHART

FITTING

LOCATIONS

INITIAL

PUMPS

NO. of

PLACES

SERVICE

INTERVAL

1. Front Caster wheel hubs

∗0

2

∗Yearly

2. Front Caster Pivots

∗0

2

∗Yearly

3. Height Adj. Shaft Bearings

1

5

40 hours

4. Deck Drive Belt Idler Arm

1

1

Yearly

5. Brake Brackets

1

2

200 hours

6. Mule Drive Belt Idler Arm

1

1

Yearly

7. Pump Drive Belt Idler Arm

1

1

Yearly

8. Deck Rear Struts

1

2

40 hours

See Section 4.1.15 c) for special lubrication instructions on the front caster pivots and

Section 4.1.16 for special lubrication instructions on the front casters wheel hubs.





c) Lubricate front caster pivots once a year. Remove hex plug and cap.

Thread grease zerk in hole and pump with grease until it oozes out around
top bearing. Remove grease zerk and thread plug back in. Place cap
back on.

4.1.16 Lubricate caster wheel hubs:

Service Interval: Once Yearly

a)

Stop engine, wait for all moving parts to
stop, and remove key.

b)

Remove caster wheel from caster forks.

c)

Remove seal guards from the wheel hub.

d)

Remove one of the spacer nuts from the
axle assembly in the caster wheel. Note
that thread locking adhesive has been
applied to lock the spacer nuts to the
axle. Remove the axle (with the other
spacer nut still assembled to it) from the
wheel assembly.

e)

Pry out seals, and inspect bearings for
wear or damage and replace if necessary.

f)

Pack the bearings with a NGLI grade #1 multi-purpose grease.

No. 6 (Mule Drive Belt Idler Arm)
Located Under Engine Frame

No. 7 (Pump Drive Belt Idler Arm)
Located Under Engine Frame

FIGURE 4

CASTER WHEEL ASSEMBLY