Operating Instructions

1.Before attempting to start the engine, make sure the operator is in the seat, the Forward Speed Control is in NEUTRAL-PARKposition, 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.

CAUTION

A safety interlock switch system PREVENTS 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 adjusted before operating the mower. DO NOT disconnect safety switches; they are for the operator’s protection.

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.

Cold Start

Lever Engaged

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.

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