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Check mower blades check safety interlock system, Check mower blades, Warning – Exmark Lazer Z Advantage Series Models 0 User Manual

Page 31: Check safety interlock system, Maintenance

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Maintenance

Figure 20

1.

Positive (+) cable on discharged battery

2.

Positive (+) cable on booster battery

3.

Negative (–) cable on the booster battery

4.

Negative (–) cable on the engine block

5.

Booster battery

6.

Discharged battery

7.

Engine block

4. Connect the other end of the positive cable to the

positive terminal of the booster battery.

5. Connect the black negative (–) cable to the other

terminal (negative) of the booster battery.

6. MAKE THE FINAL CONNECTION ON

THE ENGINE BLOCK OF THE STALLED
VEHICLE (NOT TO THE NEGATIVE POST)
AWAY FROM THE BATTERY. STAND BACK.

7. Start the vehicle and remove the cables in the

reverse order of connection (the engine block
(black) connection is the first to disconnect).

Check Mower Blades

Service Interval: Before each use or daily

1. Stop engine, wait for all moving parts to stop, and

remove key. Engage parking brake.

2. Lift deck and secure in raised position as stated in

the Clean Grass Build-Up Under Deck section.

3. Inspect blades and sharpen or replace as required.

4. Reinstall the blades (if they were removed) in the

following order:

A. Install the blade onto the spindle shaft.

Figure 21

1.

Spindle

2.

Blade

3.

Blade drive washer

4.

Blade bolt washer assembly — Torque to 55-60 ft-lb
(75-81 N-m) Apply lubricant to threads as needed to
prevent seizing. Copper-based anti-seize preferable.
Grease acceptable substitute.

B. Apply lubricant to the threads of the blade

bolt as needed to prevent seizing. Copper
based anti-seize is preferable. Grease is an
acceptable substitute.

C. Install the blade drive washer and blade bolt

washer assembly into the spindle. Make sure
the hex in the washer is engaged on the
spindle before tightening the bolt. Install
blade bolt finger tight.

D. Place wrench on the top spindle nut then

torque the blade bolts to 55-60 ft-lb (75-81
N-m).

WARNING

Incorrect installation of the blade or
components used to retain the blade can
be dangerous. Failure to use all original
components and assembled as shown could
allow a blade or blade component to be
thrown out from under the deck resulting in
serious personal injury or death.

Always install the original Exmark blades,
blade bushings, and blade bolts as shown.

Check Safety Interlock
System

Service Interval: Before each use or daily

Note: To prevent engine cut-outs on rough terrain
the seat kill switch has a 1/2 second delay.
1. Check starting circuit. Starter should crank with,

parking brake engaged, PTO disengaged and

31

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