Drive Belts; Fuel Lines And Clamps; Radiator Hoses And Clamps - Walker H24d Operator's Manual

Maintenance Instructions
DO NOT try to straighten a blade that is
bent. NEVER weld a broken or cracked
blade. ALWAYS replace with a new blade
to assure safety.
4. If the blade cutting edge is dull or nicked, it
should be sharpened.
sharpening by grasping the end of the blade us­
ing a rag or a thick, padded glove, while loos­
ening and removing the bolt and washer that
mounts the blade.
5. Grind cutting edge at the same bevel as the
original. Sharpen only the top of the cutting
edge to maintain sharpness.
NOTE: Blades can be sharpened with an elec­
tric blade sharpener, conventional electric grind­
er, or a hand file.
ALWAYS wear eye protection and gloves
when sharpening a blade.
Sharpen at Original
30° Angle
30°
Do Not Grind or
Sharpen on Underside
Mower Blade Profile for Sharpening
6. Check blade balance by positioning the blade
horizontally on a blade balancer or use a nail
or shaft through the center hole. If either end of
the blade rotates downward, grind (remove)
metal on that end until the blade will balance.
The blade is properly balanced when neither
end drops. Balance of a blade is generally
main tained by removing an equal amount of
material from each end of the blade when
sharpening.
62
WARNING
Remove blades for
CAUTION
Intersection
Wear Area
Wing Tip
CHECKING/SERVICING
Blade Balancer
Blade Balanced on Magnetic
Wall-Mounted Balancer
7. Mount the blade with wing tips pointing up into
the housing. For gear driven decks reinstall
the blade, washer, lock washer, and nut. Tight-
en the nut to 60 lb·ft (81 N·m). For belt driven
decks reinstall the spacer (if applicable), blade,
washer, and bolt. Tighten the bolt to 70 lb·ft
(95 N·m).

Drive Belts

Raise the body and inspect the condition of the four
(4) drive belts after every 25 hours of operation–
engine/PTO drive (3), ground drive (1). Also, re­
move the belt cover on the mower deck and check
the blade drive belt. If the belts show signs of
cracking or deteriorating, the belts should be re-
placed. Refer to REPLACING/REPAIR ING the
Drive Belts in this section.

Fuel Lines and Clamps

Every year, inspect the fuel supply lines from the
tank(s) to engine for deterioration or damage. Also,
inspect the fuel line clamps for tightness. Good
preventive maintenance calls for complete replace-
ment of fuel lines and clamps every two (2) years.
NOTE: This procedure is of special importance for
the diesel engine due to poor performance when air
is injected with the fuel.

Radiator Hoses and Clamps

Inspect the radiator hoses every 200 hours for de­
terioration or damage. Also check the tightness of
the hose clamps. Good preventive maintenance
calls for complete replacement of the radiator
hoses and clamps every two (2) years.