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Operating Instructions
32
1. Before attempting to start the engine, make
sure the operator is in the seat, the Forward
Speed Control is in NEUTRAL-PARK position,
and the blade clutch and parking brake are
DISENGAGED.
NOTE: Release parking brake to prevent extra
load on the starter if the transmission neutral is
slightly out of adjustment.
NOTE: For starting in cold weather [below 40° F
(4° C)], use the cold start lever to release the
jackshaft drive belt and remove the hydrostatic
transmission from the starter cranking load.
After the engine has been started and warmed
up, raise the lever to re-engage the jackshaft
drive belt.
Jackshaft Drive Belt Release
2. Turn and hold the ignition key in the PREHEAT
position to preheat the engine glow plugs. For
temperatures below 35° F (2° C), the time
required is approximately 25 to 30 seconds. For
temperatures 35° F (2° C) or higher, the time
required is approximately 10 to 15 seconds.
3. Move the throttle 1/4 to 1/2 open (toward
FAST) and turn the ignition switch to the
START position to start the engine. Release
the key to the RUN position as soon as the
engine starts.
IMPORTANT: If the engine fails to start after
approximately 10 seconds of cranking, the
engine should be checked before further crank-
ing. Turn the key to the OFF position and allow
a 60 second cool-down period between starting
attempts. Failure to follow these guidelines can
damage the starter motor and shorten battery
life.
TROUBLESHOOTING NOTE: If the engine
cranks but does not start, check the following:
• The fuel valve solenoid is operating. Look at
the exhaust pipe when cranking the engine - no
smoke indicates no fuel is reaching the cylinder.
If the solenoid is not operating, contact your
Walker Dealer.
• The glow plugs are operating. Look at the
exhaust pipe when cranking the engine - white
smoke indicates improper glow plug operation
and inadequate preheat. Consult the Kubota
Workshop Manual to check glow plug function.
4. After the engine starts, make sure the oil
pressure light goes off. If not, stop the engine
immediately and find the cause of the problem.
Make sure the oil pressure light is off prior to
engaging the mower blades and beginning
operation.
CAUTION
A safety interlock switch system PRE-
VENTS CRANKING the engine with either
the Forward Speed Control or the blade
clutch (PTO) out of neutral. If the engine
cranks otherwise, the safety system is not
working and should be repaired or ad-
justed before operating the mower. DO
NOT disconnect safety switches; they are
for the operator’s protection.
Cold Start
Lever Engaged