TROUBLESHOOTING

6.ENGINE SOMETIMES SKIPS AT HIGHER SPEED

Incorrect ignition timing----------------------------------------------------------------------------------------------------------------

Consult dealer

Carburetor maladjusted --------------------------------------------------------------------------------------------------------

Readjust carburetor

Faulty spark plugs -------------------------------------------------------------------------------

Check spark plug or condition and reset gap*

Bouncing off seat safety switch---------------------------------------------------------------------------------------

Slow down on rough terrain

7.ENGINE OVERHEATED

 

Air intake screen or fins clogged

-----------------------------------------------------------------------------------Clean Intake screen and fins

 

Fuel mixture too lean------------------------------------------------------------------------------------------------------------------

Consult

dealer

 

Oil level too low or too high -----------------------------------------------------------------------------------------------------------

Adjust oil level

 

Improper ignition timing---------------------------------------------------------------------------------------------------------------

Consult

dealer

 

Running engine too slow----------------------------------------------------------------------------------------------------------

Run engine

faster

 

 

(NOTE: Always mow at full throttle setting.)

8.

ENGINE IDLES POORLY

 

 

 

Carburetor maladjustment -----------------------------------------------------------------------------------------------------------

Consult

dealer

 

Improper spark plug gap--------------------------------------------------------------------------------------------------

Check and re-gap

plug*

9.

ENGINE BACKFIRES

 

 

 

Carburetor maladjustment ----------------------------------------------------------------------------------------------------------

Consult dealer*

10.ENGINE RUNS BUT MOWER WON'T MOVE FORWARD

Drive belt broken or slipping ------------------------------------------------------------------------------------------------

Re-tension or replace

Shift linkage disconnected-----------------------------------------------------------------------------------------------------------------

Reconnect

Transmission shift arm disconnected ---------------------------------------------------------------------------------------------------

Reconnect

Transmission oil low ----------------------------------------------------------------------------------------------------------------------------

Add oil

Transmission locks in free wheel position---------------------------------------------------------------------

Put in lock position (see pg.19)

Hydrostat oil filter plugged --------------------------------------------------------------------------------------------------------------

Replace filter

Bad

transmission-----------------------------------------------------------------------------------------------------------------------

Consult

dealer

Gear

mating transmission/gearbox disconnected -------------------------------------------------------------------------------

Consult

dealer

Air in transmission ----------------------------------------------------------------------------------------------------------------------------

Bleed air

Not enough tension on drive belt --------------------------------------------------------------------------------------------------------------

Check

11.MOWER LOSES POWER/ TRANSMISSION OVERHEATS

Hydrostat transmission oil too low or too high

-----------------------------------------------------------------Add Oil or drain oil as needed

Transmission damage-----------------------------------------------------------------------------------------------------------------

Consult dealer

Transmission blowing oil out cap -----------------------------------------------------------------------------

Overfilled or water contaminated

12.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 manuals for engine adjustments

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Image 37
Dixon 13090-0700, ZTR 6022 manual Engine Idles Poorly