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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