3.Check mower blade balance.
Slide mower blade on an unthreaded bolt. A balanced blade should remain in a horizontal position. If either end of mower blade moves downward, sharpen the heavy end until blade is balanced (Figure 12).
4.Install mower blade on unit.
5.Tighten the bolts to a torque of 37.5 - 50
T
Blade
Bolt
OA0013
Figure 12
CHECK DRIVE BELT
Check drive belt and replace if worn or damaged. See DRIVE BELT REPLACEMENT on page 20.
CHECK FASTENERS
Check all fasteners for proper tightness. Pay special attention to blade hardware and all guards, shields and safety devices.
CHECK AIR CLEANER
See engine manual for specific information.
CHANGE ENGINE OIL
IMPORTANT: Change engine crankcase oil after first five (5) hours of operation. Then change oil after every 25 hours of operation.
Refer to engine manual for instructions and proper oil type.
IMPORTANT: Proper oil level must be maintained at all times or engine damage will result. DO NOT overfill. Be sure engine is level when adding oil.
GENERAL LUBRICATION
Swivel Wheels (911194)
See Figure 13.
Use Mix
Lube Fitting
OM1282
Figure 13
CHECK SPARK PLUG
Spark plug should be replaced every 100 hours of operation or each year.
NOTE: Loose spark plug wire terminals can cause sparking. Replace terminal if damaged.
CHECK ENGINE COOLING
WARNING: HOT SURFACES can cause death or serious injury. DO NOT TOUCH parts which are hot from operation. ALWAYS allow parts to cool.
To prevent overheating, air must circulate freely around the cooling fins, cylinder head and block.
Every 100 hours of operation or yearly (more often if conditions require) remove blower housing and clean cooling fins. See engine manual for instructions.
CHECK MUFFLER
Check muffler for debris, cracks, wear, or other damage.
CAUTION: Replace
GB - 19
