49
Maintenance Instructions
CHECKING/SERVICING/
REPLACING/REPAIRING
Drive Belts
Raise the body and inspect the condition of the four
(4) drive belts
after every 25 hours
of operation --
engine/PTO drive and ground drive. If the belts show
signs of cracking or deteriorating,
the belts
should be
replaced.
Refer to
REPLACING/REPAIR-
ING
the
Drive Belts
in this section.
Spark Plugs
Every 200 hours,
remove the spark plugs, inspect,
clean, and reset the gap (or replace with a
new
plug
). Clean spark plug with a wire brush. If the
electrodes are burned short or pitted, replace the
plug (refer to
Specifications
for the proper type of
replacement plug). Check the spark plug gap with a
wire-type feeler gauge and set the gap to 0.030 in.
(0.76 mm). Reinstall and tighten to 18 ft-lb
(24.4 N
·
m). Both spark plugs should be replaced yearly.
Fuel Lines and Clamps
Every year
, inspect the fuel lines from the tanks to
engine for deterioration or damage. Also, inspect the
fuel line
clamps for tightness.
Good preventive
maintenance calls for complete
replacement
of fuel
lines and clamps
every two (2) years.
Blade Brake Action
Check the function of the cutter blade brake by
engaging the blade clutch (PTO), operating the
engine at full throttle, then disengaging the clutch
and measuring how quickly the blades stop. Watch
the rotation of the blade drive shaft as a visual indi-
cation that movement has stopped. If the brake is
working properly, all rotation will stop five (5)
seconds after disengagement
of the clutch. If the
brake system malfunctions -- blades do not stop in
five (5) seconds -- repair the brake before operating
the mower.
REPLACING/REPAIRING
IMPORTANT: ALWAYS
use genuine factory re-
placement parts. Substitute parts
CAN
result in
product malfunction and possible injury to the oper-
ator and/or others.
Drive Belts
There are
four (4) individual belts
on the machine:
•
Engine/PTO Belt [Matched Set (3)]
•
Ground Drive Belt
The belts may be removed and replaced using the
procedures described on the following pages.
Belt Locations (Engine Hidden for Clarity)
WARNING
It is important to check and maintain blade
brake action for safe operation of the ma-
chine.
DANGER
To prevent accidental starting of the
engine when replacing parts or repairing
the machine, remove the key from the
ignition switch and disconnect the spark
plug wires.
Ground
Drive Belt
Clutch
(Ref)
Engine/PTO Belt
(Matched Set)
