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
d)Insert (1) bearing, (1) new seal, and (1) bearing spacer. NOTE: Seals (Exmark PN
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).
5.1.16Check 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.
5.1.17Remove 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.
5.1.18Change 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
5.1.19Wheel 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
5.1.20Thread locking adhesives such as “Loctite 242” or
a)Pump drive sheave setscrews.
b)Square head setscrews on Hydro pump control arms.
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