Exmark LAZER Z HP manual Figure Blade Bolt Installation, Service Interval Daily

d)Re-install the blades (if they were removed) in the following order (See Figure 7):

1)Install bushing through blade with bushing flange on bottom (grass) side of blade.

2)Install bushing/blade combo into spindle.

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 7

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.

5.1.6Check 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.

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