15
SECTION 4 – TROUBLESHOOTING
4.1 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 Speed Control not at FAST (Rabbit) position............................ Move Engine Speed Control to FAST
................................Engine NOT Choked. ........................................................................... Move Engine Speed Control to CHOKE
................................ ............................................................................................................. position.
................................ ............................................................................................................. Check choke adjustment.
................................Spark Plug Wire loose or disconnected................................................ Connect Spark Plug Wire.
................................Operator Presence Control (OPC) out of adjustment ........................... Adjust OPC.
................................Blade Clutch Switch in ON position. ..................................................... Push Blade Clutch Switch to OFF position.
................................Spark Plug bad..................................................................................... Install new Spark Plug.
................................Dirty Air Filter........................................................................................ Clean Air Filter.
................................Transmission not in NEUTRAL............................................................. Move Transmission Lever to NEUTRAL (N).
Engine....................Dirt or water 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.
4.2 MOWER TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION
Mower does.............. Transmission in neutral..................................................................... Select Gear.
not move................... Traction Belt(s) slipping..................................................................... Adjust or replace Traction Idler Spring(s).
when Traction ......... .......................................................................................................... Adjust Upper Traction Rod(s).
Levers released ....... .......................................................................................................... Replace Traction Belt(s).
................................... Transmission Belt slipping ................................................................ Adjust Transmission Idler.
................................... .......................................................................................................... Replace Transmission Belt.
................................... Transmission Belt Damaged or Broken............................................. Replace Transmission Belt.
Mower does.............. Slipping or broken Traction Belt........................................................ Adjust or replace Traction Belt.
not track ................... Tire pressure in both Drive Wheels................................................... Adjust air pressure.
straight. .................... not the same.
Mower veers............. Wheel Brake(s) not engaging properly.............................................. Adjust Lower Traction Rod(s).
when......................... Traction Belt(s) not declutching......................................................... Adjust Upper Traction Rod(s).
stopping.
Mower does.............. Wheel Brake(s) not engaging properly.............................................. Adjust Lower Traction Rod(s).
not stop when .......... Traction Belt(s) not declutching......................................................... Adjust Upper Traction Rod(s).
Traction Levers are
squeezed.
