Electric Clutch Adjustment. Exmark LAZER Z LZX940KC726, LAZER Z LZX980KC606, LAZER Z LZX801KA606SS, LAZER Z LZX980KC726, LAZER Z LZX680KC486, LAZER Z X-SERIES Operators, LAZER Z LZX801KA606, LAZER Z LZX740KC606CA, LAZER Z LZX740KC526, LAZER Z LZX749EKC606

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Electric Clutch Adjustment. Exmark LAZER Z LZX940KC726, LAZER Z LZX980KC606, LAZER Z LZX801KA606SS, LAZER Z LZX980KC726, LAZER Z LZX680KC486, LAZER Z X-SERIES Operators, LAZER Z LZX801KA606, LAZER Z LZX740KC606CA, LAZER Z LZX740KC526, LAZER Z LZX749EKC606 | Manualzz

Maintenance

14. Once step 11 is achieved, hold the threaded rod

end with a tool and tighten the lock nut against the standard nut. Do Not allow the cable to turn when the nuts are tightened.

15. After adjusting the brakes on both sides of the mower, cycle the brake handle a minimum of six times to allow the cable to seat into the sheath and mounting tabs.

16. Readjust both brakes following the procedure in

steps 10 through 14.

17. If a brake component has been removed or replaced, see the steps below; otherwise proceed

to step 18.

Burnishing the Brake Procedure:

A. Clear the area of any flammable material before starting the burnishing process.

B. Rotate the drive wheel release handle to the

“operating” position. Refer to the Drive

Wheel Release Valves section in Operation.

C. Apply the park brake.

D. Install a 1/2 x 6 inch (approx.) rod or bolt through the 2 inch height of cut hole (see

Figure 33).

WARNING

Engine must be running and drive wheels must be turning so park brake adjustment can be performed. Contact with moving parts or hot surfaces may cause personal injury.

Keep fingers, hands, and clothing clear of rotating components and hot surfaces.

F. Release the park brake so the handle rests on the 1/2 x 6 inch rod or bolt.

G. Move the throttle to high idle.

H. Move both motion control levers to the full forward position and hold for 15 seconds.

I. Move both motion control levers to the full reverse position and hold for 15 seconds.

J.

Turn off the engine and completely release the park brake by removing the 1/2 x 6 inch rod or bolt.

K. Allow the hubs to cool until they are cool enough to safely touch.

L. Rotate the drive wheel release handle to the

“released” position. Refer to the Drive Wheel

Release Valves section in Operation.

M. Readjust both brakes following the procedure

in steps 10 through 14.

18. Rotate the drive wheel release handle to the

“operating” position. Refer to the Drive Wheel

Release Valves section in Operation.

19. Install the rear tires and torque lug nuts to 90-95 ft-lb (122-129 N-m).

20. Remove jack stands.

Figure 33

1.

2 inch height of cut location

E. Start the mower while in the operator position.

Electric Clutch Adjustment

No adjustment necessary; however some later model year units have been built with clutches that contain a brake shim. When the clutch brake has worn to the point where the clutch no longer engages consistently, the shim can be removed to extend the clutch life.

43

Maintenance

1.

Armature

2.

Field shell

3.

Rotor

4.

Brake mounting bolt

Figure 34

5.

Brake spacer

6.

Re-gap shim

7.

Brake pole

1.

Brake mounting bolt

Figure 35

2.

Shim

Removing the Shim:

1. Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. Allow the machine to cool completely before starting these instructions.

2. Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

3. Check the condition of the wire harness leads, connectors, and terminals. Clean or repair as necessary.

4. Verify that 12V is present at the clutch connector when the PTO switch is engaged.

5. Measure the gap between the rotor and armature.

If the gap is greater than .04 inch (1 mm), proceed with the following steps:

A. Loosen both brake mounting bolts one-half

to one full turn (see Figure 35).

Note: Do Not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque.

1.

Feeler gauge

B. Using needle nose pliers, or by hand, take hold of the tab and remove the shim (Do Not discard the shim until proper clutch function has been confirmed).

C. Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

D. Re-torque each bolt (M6 x 1) to 10 ft-lb (13

N-m) +/-0.5 ft-lb (0.7 N-m).

E. Using a 0.010 inch thick feeler gauge, verify that a gap is present between the rotor and armature face on both sides of the brake pole as shown. (Due to the way the rotor and armature faces wear (peaks and valleys) it is sometimes difficult to measure the true gap.)

Figure 36

1

G011733

44

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