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b) Disassemble the caster wheels, pry out seals, and inspect bearings for
wear or damage and replace if necessary.
c) Pack the bearings with NGLI grade #2 multi-purpose gun grease.
d) Insert (1) bearing, (1) new seal, and (1) bearing spacer.
NOTE: Seals (Exmark PN 103-0063) must be replaced.
e) Insert Caster Spacer.
f) With open end of wheel up, fill area inside wheel around caster spacer
with gun grease.
g) Insert the second (1) bearing, (1) new seal, and (1) bearing spacer.
h) Put wheel and tire assembly on the unit and adjust by tightening the nyloc
nut until wheel will not turn freely. Back nut off 1/6 of a turn so the wheel
will just turn with a slight amount of drag.
IMPORTANT: To prevent seal and bearing damage, check the bearing
adjustment often. Spin the caster tire. The tire should not spin freely
(more than 1 or 2 revolutions) or have any side play. If the wheel spins
freely adjust per step h).
5.1.16 Check spark plugs.
Service Interval: 160 hrs.
a) Remove spark plugs, check condition and adjust plug gap or replace with
new plugs. See Engine Owner's Manual.
5.1.17 Remove engine shrouds and clean cooling fins.
Service Interval: See Engine Owner's Manual
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Remove cooling shroud cleanout covers (Kohler) or cooling shrouds
(Kawasaki) from engine and clean cooling fins. Also clean dust, dirt, and
oil from external surfaces of engine which can cause improper cooling.
c) Make sure cooling shroud cleanout covers or cooling shrouds are
properly reinstalled. Operating the engine without cooling shroud
cleanout covers or cooling shrouds will cause engine damage due to
overheating.
5.1.18 Change fuel filter.
Service Interval: As Required
a) A fuel filter is installed in the fuel line between the fuel tank and the
engine. Replace when necessary.
For Kohler engines use Kohler P/N 2405002
For Kawasaki engines use Kawasaki P/N 49019-7001
5.1.19 Wheel hub - slotted nut torque specification.
When tightening the slotted nut on the wheel motor tapered shaft:
a) Torque the slotted nut to 100 ft. lbs.
b) Further tighten the nut until the next set of slots line up with the cross
hole in the shaft.
c) Replace cotter pin.
Note: Do not use anti-seize compound on the wheel hub.
5.1.20 Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut-
Type” are used on the following fasteners:
a) Pump drive sheave setscrews.
b) Square head setscrews on Hydro pump control arms.