Pump Drive Belt Tension. Exmark LAZER Z

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Pump Drive Belt Tension. Exmark LAZER Z | Manualzz

Maintenance

16. If the deck is too low, tighten the single point adjustment bolt by rotating it clockwise. If the deck is too high, loosen the single point adjustment bolt by rotating it counterclockwise.

Note: Loosen or tighten the single point adjustment bolt enough to move the height-of-cut plate mounting bolts at least 1/3 the length of the available travel in their slots. This will regain some up and down adjustment on each of the four deck links.

17. Re-tighten front and rear height-of-cut plate mounting bolts.

Important: Torque the front and rear height-of-cut plate mounting bolts to 27-33 ft-lb (37-45 N-m).

18. Repeat steps 9 through 13.

Pump Drive Belt Tension

Self-tensioning - No adjustment necessary.

CAUTION

Raising the mower deck for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the unit to fall, which could cause injury.

Do Not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

5. Remove the rear tires from the machine.

6. Remove any debris from the brake area.

7. Rotate the drive wheel release handle to the

“released” position. Refer to the Drive Wheel

Release Valves section in Operation.

8. Disengage the park brake.

9. Hold the threaded rod end with a tool and loosen the lock nut away from the standard nut (see

Figure 33). Do Not allow the cable to turn when the nuts are being loosened.

Deck Belt Tension

Self-tensioning - No adjustment necessary.

Adjusting the Parking Brake

Service Interval: After the first 100 hours

Every 500 hours thereafter

Check to make sure brake is adjusted properly. This procedure must be followed after the first 100 hours or when a brake component has been removed or replaced.

1. Drive the machine onto a level surface.

2. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake.

3. Stop the engine, wait for all moving parts to stop, and remove the key.

4. Raise the back of the machine up and support the machine with jack stands.

Figure 33

Left Hand Brake Shown

1.

Cable anchor 7.

Pull cable threaded rod this direction

2.

Threaded rod 8.

Hold threaded rod here

3.

Push lever this direction 9.

Swivel (pivot head)

4.

Caliper lever arm

5.

Standard nut (shown against swivel)

10.

Caliper

11.

Hub

6.

Lock nut

42

Maintenance

10. Remove all slack from cable by pulling on the caliper lever arm with a medium amount of force.

Using hands and fingers only, push the caliper lever arm to engage the brake pads on the rotor until the lever stops. While holding the lever at the stopped position, use the other hand or fingers to pull the slack out of the cable threaded end through the swivel. Spin the standard nut against the swivel (see Figure 33).

Note the order of the standard nut and lock nut

(no nut on the cable anchor side of the swivel).

11. Release the caliper lever and cable. Turn the wheel hub by hand in both directions relative to the caliper; slight drag of the caliper pad on the wheel hub is desired.

12. If there is no movement between the hub and the caliper then back off the standard nut one turn from the swivel and repeat step 11 (drive release valves must be in the “released” position on the hydros).

13. If the hub moves very freely relative to the caliper, then tighten the standard nut one turn against the swivel and repeat step 11.

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 34).

Figure 34

1.

2 inch height of cut location

E. Start the mower while in the operator position.

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.

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Key Features

  • Powerful engine for superior cutting performance
  • Durable deck for long-lasting use
  • Variety of cutting widths to meet your needs
  • Intuitive controls for easy operation
  • Easy maintenance for less downtime
  • Excellent cutting performance for a beautiful lawn

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Frequently Answers and Questions

What is the difference between the LAZER Z and other zero-turn mowers?
The LAZER Z is a commercial-grade mower that is built to last. It has a more powerful engine, a more durable deck, and a wider range of cutting widths than most other zero-turn mowers.
How do I choose the right cutting width for my needs?
The right cutting width for you depends on the size of your lawn. If you have a small lawn, a 42-inch cutting width will be sufficient. If you have a larger lawn, you may want to choose a 48-inch or 52-inch cutting width.
How do I maintain my LAZER Z mower?
The LAZER Z mower is easy to maintain. Simply follow the maintenance schedule in the owner's manual.