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a) Disengage blade clutch.
b) Stop engine and remove spark plug wire(s).
c) Raise deck and block up using proper safety precautions.
d) Clean out any grass build-up from underside of deck and in deck
discharge chute.
e) Inspect blades and sharpen or replace as required.
f) If blade removal is necessary, be careful for the sharp cutting edges of
the blades.
g) Re-install the blades (if they were removed) and torque blade bolts to 75-
80 ft. lbs. Be sure the spring disc washer cone is installed toward the bolt
head (See Figure 13).
h) Remove jack stands (or equivalent support) and lower deck to ground.
FIG. 13
BLADE BOLT INSTALLATION
5.1.4 Check safety interlock system.
Service Interval:
Daily
a) For your safety, your Exmark mower is equipped with Operator Presence
Controls (OPC). When either the mower blades are engaged, or the
transmission shift lever is not in neutral and both hands are removed from
the handles, the mower engine
MUST stop.
b) Check OPC circuits. Clear the area. Run engine at one-third throttle, then
with drive levers and neutral lock/park brake latches in
“park brake”
position
, Shift the transmission into gear and release OPC levers –
engine MUST stop.
Again, run engine at one-third throttle, move the transmission shifter lever to
neutral
, engage blade clutch and release OPC levers -
engine MUST stop.
c) If machine does not pass any of these tests,
DO NOT
operate. Contact
your authorized
EXMARK SERVICE DEALER.
IMPORTANT: It is essential that all Operator Safety Mechanisms, be
in place and in proper operating condition prior to mowing.
5.1.5 Check for loose hardware.
Service Interval:
Daily
a) Stop engine and remove spark plug wire(s).
b) Visually inspect machine for any loose hardware or any other possible
problem. Tighten hardware or correct the problem before operating.