Bush Hog Home Series manual Troubleshooting Check List

TROUBLESHOOTING CHECK LIST

1.ENGINE IDLES POORLY:

Carburetor maladjustment_________________________________________________readjust carburetor Improper spark plug gap _______________________________________________check and re-gap plug

2.ENGINE BACKFIRES:

Carburetor maladjustment_________________________________________________readjust carburetor

3.ENGINE RUNS BUT POWER UNIT WON’T MOVE FORWARD

Drive belt loose or broken________________________________________________re-tension or replace Pump shift arm disconnected _____________________________________________________reconnect Hydrostatic transaxle oil low _________________________________________________________add oil Pump bypass valve open________________________________________________put in closed position Bad transaxle ______________________________________________________________consult dealer

4.POWER UNIT LOSES POWER OR HYDROSTAT SYSTEM OVERHEATS

Hydrostatic transaxle oil too low _____________________________________________________add oil Transaxle damaged _________________________________________________________consult dealer Hydrostatic transaxle blowing oil out cap ___________________________overfilled or water contaminated

5.ENGINE STALLS WHEN BLADES ARE ENGAGED

Operator not on seat ____________________________________________________________sit on seat Faulty interlock system _______________________________________________________consult dealer Bad blade spindle bearing_____________________________________________________consult dealer Deck drive belt not properly routed ___________________________________________________reroute Blades blocked by foreign material ___________________________________________clean under deck

•See engine manual for engine adjustments

ENGINE ELECTRICAL TROUBLE

1.ENGINE WILL NOT TURN OVER: Dead battery

Bad ground connection

Bad terminal connection at battery

Wiring harness plugs are not attached properly at the key switch or the PTO switch

Bad parking brake switch Bad PTO switch

2.ENGINE WILL TURN OVER, BUT WILL NOT START:

A. If there is spark at the plug:

No fuel

Bad fuel solenoid in engine

B. If there is no spark at the plug:

Make sure safety interlock system is sequenced: PTO switch is off

Control levers in neutral position Parking brake is on

Operator in seat

Check safety interlock switches: Seat switch

Neutral switch

Bad ignition module on engine

POOR CUTTING PERFORMANCE

*ENGINE SPEED IS TOO SLOW: Always mow at full throttle.

*BELT SLIPPAGE:

Tighten deck adjusting spring to 7” on 36” deck, 7-1/2” on 42” deck.

*DECK IS PLUGGED WITH GRASS: Clean underneath the mower.

*BLADES ARE NOT SHARP: Sharpen the blades or replace.

*CUTTING HEIGHT:

Normal mowing - cut only 1/3 of the grass blade.

*FINISHED CUT IS UNEVEN: Groundspeed is too fast.

*BLADES ARE WORN DOWN TOO FAR: Replace your blades.

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