Murray 425620x92B - Manual (Page 21)

MAINTENANCE
21 F-040740L
MAINTENANCE CHART
FREQUENCY MAINTENANCE REQUIRED COMMENTS
Daily or before each
use
Maintenance engine. Refer to the Engine Owner’s Manual.
Examine blade(s). Check for cracks, wear, and excessive
damage.
Remove debris from unit and mowing area .
Examine all rotating and sliding parts.
Check tire inflation.
Refer to the Maintenance section.
Verify that the mower housing is level. Refer to the Maintenance section.
Examine V-belts. Check for cracks, wear, and excessive
damage.
Check brake operation. Refer to the Operation and Maintenance
sections.
After completion of
first 5 hours
Change oil. Refer to the Engine Owner’s Manual.
After 25 hours Maintenance engine. Refer to the Engine Owner’s Manual.
Remove, examine, sharpen, and balance
blade(s).
Refer to Maintenance section.
Check adjustments:
a. Blade Rotation Control
b. Brake
c. Clutch
d. Steering
Refer to Maintenance section.
Lubricate chassis and mower housing. Refer to Where to Lubricate instructions.
Check the muffler:
a. Torque
b. For wear or burn out
c. Condition of spark arrestor, (if applicable).
Refer to Maintenance section.
Before storage of 30
days or more
Prepare engine for storage. Refer to the Engine Owner’s Manual.
Drain fuel system. Refer to warnings in the Owner’s Manual.
Add fuel stabilizer. Refer to the Engine Owner’s Manual.
Prepare battery for storage:
a. Remove from unit.
b. Fully charge.
c. Move to cool dry place.
GENERAL RECOMMENDATIONS
1. The owner’s responsibility is to maintain this product. This will
extend the life of the product and is also necessary to maintain
warranty coverage.
2. Check the spark plug, drive brake, lubricate the unit, and clean
the air filter once a year.
3. Check the fasteners. Make sure all fasteners are tight.
4. Follow the Maintenance section to keep the unit in good operat-
ing condition.
WARNING: Before you make an inspection, adjust-
ment, or repair to the unit, disconnect the wire to the
spark plug. Remove the wire from the spark plug to
prevent the engine from starting by accident.
NOTE: Torque is measured in foot pounds (metric Nm). This
measurement describes how tight a nut or bolt must be. The
torque is measured with a torque wrench.
HOW TO
CHECK THE MUFFLER
Check the muffler every 50 hours. Make sure the muffler is correctly
mounted and is not loose. If the muffler is worn or burnt, replace with
a new muffler. A worn muffler is a fire hazard and can also damage
the engine.
If you mount a spark arrester to the muffler, also check the spark
arrester when you check the muffler. If the spark arrester is worn or
damaged, replace it with a new spark arrester. See your nearest
authorized service center for a spark arrester.