Exmark NAV20KC User Manual
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4.1.10
Check condition of belts:
Service Interval: 40 hrs.
a) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
b) Tilt hopper up and check pump and PTO drive belts.
c) Belts are spring tensioned and no adjustment is necessary unless belts are
replaced. See section 4.2.2 and 4.2.3 for belt replacement.
4.1.11
Lubricate grease fittings:
Service Interval: Refer to chart.
a) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
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. Caster Pivot
*0
3
*yearly
2. PTO Idler
1
1
yearly
3. Pump Idler
1
1
yearly
4. Rear Caster Hub
*0
1 or 2
*yearly
* See Section 4.1.11 c) for special lubrication
instructions on the front and rear caster pivots and
Section 4.1.12 for special lubrication instructions on
the rear caster wheel hub.
c) Lubricate 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.
4.1.12
Lubricate rear caster wheel hub:
Service Interval: Once Yearly
a) Stop engine, wait for all moving parts to
stop, and remove key. Engage parking
brake.
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.
g) Insert (1) bearing, (1) new seal into the wheel.
NOTE: Seals (Exmark PN 103-0063) must be replaced.
FIGURE 3