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4.1.2 Clean engine air cooling system
.
Service Interval: Daily or more often in dry conditions.
CAUTION
POTENTIAL HAZARD
♦ Excessive debris can cause the engine and hydraulic
system to overheat.
WHAT CAN HAPPEN
♦ Excessive debris around the engine cooling air intake
and around the hydraulic pumps can create a fire
hazard.
HOW TO AVOID THE HAZARD
♦ Clean all debris from around the engine and hydraulic
pumps daily.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Clean all debris from engine air intake screen, around engine shrouding,
and around the hydraulic pumps.
4.1.3 Clean grass build-up under deck
.
Service Interval: Daily
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Raise deck to the highest position. Lift the front of unit and support unit
using jack stands or equivalent support.
CAUTION
POTENTIAL HAZARD
♦ Raising the mower deck for service or maintenance
relying solely on mechanical or hydraulic jacks could be
dangerous.
WHAT CAN HAPPEN
♦ The mechanical or hydraulic jacks may not be enough
support or may malfunction allowing the unit to fall, which
could cause injury.
HOW TO AVOID THE HAZARD
♦ DO NOT rely solely on mechanical or hydraulic jacks for
support. Use adequate jack stands or equivalent support.
c) Clean out any grass build-up from underside of deck and in discharge chute.
4.1.4 Check mower blades
.
Service Interval: Daily
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Lift deck and secure in raised position as stated in Section 4.1.3.
c) Inspect blades and sharpen or replace as required.
For Serial Nos. 510,000 – 539,999:
d) Re-install the blades (if they were removed) by placing a block of wood
between the front or rear baffles and the blade then torquing the blade bolts
to 115-120 ft. lbs. (156-163 N-m). Be sure the spring disk washer cone is
installed toward the bolt head. See Figure 5.
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