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3) Install blade bolt and spring disc washer. Be sure the spring disc
washer cone is installed towards the bolt head. Place a block of wood
between front or rear baffles and the blade then torque the blade bolts
to 55-60 ft-lbs. (75-81 N-m).
FIGURE 3
BLADE BOLT INSTALLATION
IMPORTANT: DO NOT use components other than the original blade, blade
bushing, spring disc washer, and blade bolt supplied with the unit. Failure to use
all original components and assembled as shown will increase the risk of a blade
bolt becoming loose or weak after striking a foreign object.
CAUTION
POTENTIAL HAZARD
♦ Operating a mower deck with loose or weakened blade
bolts can be dangerous.
WHAT CAN HAPPEN
♦ A loose or weakened blade bolt could allow a blade
rotating at a high speed to come out from under the deck,
causing serious injury or property damage.
HOW TO AVOID THE HAZARD
♦ Always re-install original Exmark blades, blade bushings,
spring disc washers, and blade bolts in the correct
positions as shown.
4.1.6 Check safety interlock system.
Service Interval: Daily
a) Check starting circuit. Starter should crank with parking brake engaged,
PTO disengaged and motion control levers moved out in the neutral lock
position. The operator does not need to be in the seat to start the engine.
Try to start with operator in seat, parking brake disengaged, PTO
disengaged and motion control levers in the neutral lock position - starter
must not crank.
Try to start with operator in seat, parking brake engaged, PTO engaged
and motion control levers in the neutral lock position - starter must not
crank.
Try to start with operator in seat, parking brake engaged, PTO
disengaged, and the left motion control lever in, starter must not
crank, repeat again with the right lever in, then with both levers in -
starter must not crank.