Exmark 920, 000 & higher manual Forward Speed Adjustment

Figure 28

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.)

G011733

1

Figure 29

1.Feeler gauge

Figure 30

1.Feeler gauge

•If the gap is less than 0.010 inch, then reinstall the shim and reference the Troubleshooting section.

•If the gap is sufficient, proceed to the safety check in step F.

F.Perform the following safety check:

a.Sit on the seat and start the engine.

b.Make sure the blades Do Not engage with the PTO switch “off ” and the clutch disengaged.

If the clutch does not disengage, reinstall the shim and reference the Troubleshooting section.

c.Engage and disengage the PTO switch ten consecutive times to ensure the clutch is functioning properly. If the clutch does not engage properly, reference the Troubleshooting section.

Forward Speed Adjustment

1.Park the machine on a level surface.

2.Shut off engine and wait for all moving parts to stop. Engage parking brake.

3.Release and lower the rear cushion from the rear of the machine.

4.Place the front reference/speed control bar in the maximum forward position. See Adjusting the Front Reference/Speed Control Bar in Operation.

5.Push the RH control lever all the way forward to the front reference/speed control bar.

6.Loosen the jam nuts on the turnbuckle on the RH motion control (as viewed from the rear of the