Check Spark Plugs; Change Hydraulic System Filter And Fluid - Exmark STARIS S Series Operator's Manual

Maintenance
1. Seal guard
2. Remove caster wheel from caster forks.
3. Remove seal guards from the wheel hub.
4. 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.
5. Pry out seals, and inspect bearings for wear or
damage and replace if necessary.
6. Pack the bearings with a NLGI grade #1
multi-purpose grease.
7. Insert one bearing, one new seal into the wheel.
Note: Seals (Exmark P/N 103-0063) must be
replaced.
8. If the axle assembly has had both spacer nuts
removed (or broken loose), apply a thread locking
adhesive to one spacer nut and thread onto the
axle with the wrench flats facing outward. Do
Not thread spacer nut all of the way onto the end
of the axle. Leave approximately 1/8 inch (3 mm)
from the outer surface of the spacer nut to the
end of the axle inside the nut.
9. Insert the assembled nut and axle into the wheel
on the side of the wheel with the new seal and
bearing.
10. With the open end of the wheel facing up, fill
the area inside the wheel around the axle full of
NLGI grade #1 multi-purpose grease.
11. Insert the second bearing and new seal into the
wheel.
12. Apply a thread locking adhesive to the 2nd spacer
nut and thread onto the axle with the wrench flats
facing outward.
Figure 21
2. Spacer nut with wrench
flats
13. Torque the nut to 75-80 in-lb (8-9 N-m), loosen,
then re-torque to 20-25 in-lb (2-3 N-m). Make
sure axle does not extend beyond either nut.
14. Reinstall the seal guards over the wheel hub and
insert wheel into caster fork. Reinstall caster bolt
and tighten nut fully.
Important: To prevent seal and bearing damage,
check the bearing adjustment often. Spin the
caster tire. The tire should not spin freely
g006115
(more than 1 or 2 revolutions) or have any side
play. If the wheel spins freely, adjust torque on
spacer nut until there is a slight amount of drag.
Reapply thread locking adhesive.

Check Spark Plugs

Service Interval: Every 160 hours
Remove spark plugs, check condition and reset gaps,
or replace with new plugs. See Engine Owner's
Manual.
Change Fuel Filter
Service Interval: As required
A fuel filter is installed between the fuel tank and the
engine. Replace when necessary.
Note: It is important to reinstall the fuel line hoses
and secure with plastic ties the same as they were
originally installed at the factory to keep the fuel line
away from components that could cause fuel line
damage.
Change Hydraulic System
Filter and Fluid
Service Interval: After the first 250 hours
Note: Use only Exmark Part No. 109-4180 for
Summer use above 32°F (0°C) or P/N 1-523541 for
Winter use below 32°F (0°C) (Refer to Transmission
section in Specifications for filter specifications).
36
Every 500 hours/Yearly
(whichever comes
first) thereafter.
(Every 250 hours/Yearly
if using Mobil 1 15W50
thereafter)