Service Manual

RECOMMENDED MAINTENANCE SCHEDULE
25 Hours
50 Hours
100 Hours
item
Fasteners
Air filter
Spark plug
Housing
Self-propelled
Mechanism
Blade
Blade brake
Lubrication
Exhaust
ports
Fuel system
Cooling system
Comments
Keep all nuts, bolts tight
more frequently if operating conditions- are dusty.
necessary
Check blade and engine mounting fasteners frequently.
Remove, and clean each mowing season or every
25 hours:
Remove buildup- of grass clippings and-dlrt
Clean grass clippings and debris under drive belt and drive
belt cover
Sharpen or replace; maintain more frequently
if edge is
~- dulled quickly in rough. or sandy conditions
Check stopping time every
50 hours or at the start of each
mowing season. The blade must stop within
3 seconds of
releasing the bail;
if not, repair or-replace
Grease rear height adjuster brackets (self-propelled models
only)
Clean every
50 hours or at least once each mowing season
Check for leakage and/or deterioration of fuel hose; replace
if
necessary
Clean grass clippings, debris or dirt that clog the engine air
cooling fins;
do more often under dirty or high chaff
conditions.
AIR FILTER
FILTER
COVER
751.2.51
Cleaning
Once every season, or every 25 hours, clean the air
filter housing and element.
Do so more frequently
under dusty conditions.
NOTES: Do not operate the engine without the air
filter in place. Doing
so may damage the engine or
cause excessive engine wear.
To remove the air filter, snap the cover latch open,
swing the cover to the side and unhook. Remove
the cover and air filter.
Reference Section 4-3