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SECTION 4 - TROUBLESHOOTING
ENGINE TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION
Engine ...................Key OFF................................................................................................Turn Key to Run.
does not ................Fuel Tank empty. ..................................................................................Fill Fuel Tank.
start........................Fuel Shut-Off Closed.............................................................................Open Fuel Shut-Off.
...............................Engine Throttle Control not at FAST (Rabbit) position..........................Put Engine Throttle Control to FAST
...............................Choke NOT closed................................................................................Put Throttle Control in CHOKE position.
Check choke adjustment.
...............................Spark Plug Wire loose or disconnected................................................Connect Spark Plug Wire.
...............................Operator Presence Control (OPC) Switch out of adjustment................Adjust Switch
...............................Blade Clutch Switch in ON position.......................................................Pull Blade Clutch Lever to OFF position.
...............................Spark Plug bad......................................................................................Install new Spark Plug.
...............................Dirty Air Filter. .......................................................................................Clean Air Filter.
...............................Transmission not in NEUTRAL. ............................................................Shift Transmission Lever to NEUTRAL.
Engine ...................Dirt or water in Fuel Tank......................................................................Drain and clean Fuel Tank. Fill with
Starts Hard fresh Fuel.
or Loses ................Vent in Gas Cap plugged......................................................................Clean Vent or install new Gas Cap.
Power. ...................Air Filter dirty.........................................................................................Clean or install new Air Filter.
...............................Spark Plug not gapped correctly...........................................................Check and set Spark Plug gap.
...............................Spark Plug bad......................................................................................Install new Spark Plug.
Engine ..................Spark Plug bad......................................................................................Install new Spark Plug.
Runs ......................Spark Plug not gapped correctly...........................................................Clean and set Spark Plug gap.
Erratically. .............Fuel Filter plugged or dirty. ...................................................................Replace Fuel Filter.
Engine ..................Dirty Air Filter. .......................................................................................Clean or replace Filter.
Idles Poorly...........Fuel Filter plugged ................................................................................Replace Fuel Filter.
Engine ..................Engine Oil low in Crankcase. ................................................................Add Oil.
Overheats..............Engine Cooling Fins clogged ................................................................Clean Engine Cooling Fins.
Machine ................Blade Mounting Bolts loose...................................................................Tighten Blade Mounting Bolts.
Vibrates .................Blade out of Balance.............................................................................Sharpen and balance Blade.
Excessive..............Engine Mounting Bolts loose.................................................................Tighten Mounting Bolts.
...............................Damaged or Severed Belt.....................................................................Replace Belt
Engine ...................Mowing grass too tall. ...........................................................................Adjust cutting height.
Dies........................Mowing too fast.....................................................................................Reduce travel speed.
MOWER TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION
Mower does ............. Transmission in neutral. ....................................................................Select Gear
not move .................. Traction Control Rod adjustment.......................................................Adjust Rod
when Traction.......... Engine to Transmission Belt Damaged or Broken.............................Replace Belt
Levers released ....... Idler Spring Damaged or Broken.......................................................Replace Spring
Mower does ............. Slipping or broken Traction Belt. .......................................................Adjust or replace Belt.
not track ................... Tire pressure in both Traction Wheels ..............................................Adjust air pressure.
straight. .................... not the same.
Blades DO ................ Belt slipping or broken.......................................................................Replace or adjust Belt.
NOT engage. ............ Clutch does not engage.....................................................................Check Electrical Connections & Clutch
Mower....................... Travel speed too fast.........................................................................Reduce ground speed.
mows ........................ Operator making mower turn corner too fast. ..................................Reduce ground speed.
unevenly................... Rough terrain.....................................................................................Change mowing pattern.
.................................. Unequal number of Blade Spacers on
......................................Cutter Shafts or Caster Wheels. ....................................................Install equal number of Spacers.
.................................. Low Or No Air Pressure in Tires........................................................Fill Tires with Correct Air Pressure
.................................. Dull Blades ........................................................................................Sharpen Blades or Install new Blades