Troubleshooting, Adjustment & Service

A

B B B

 

 

C

 

 

Figure 31. Adjust PTO Clutch

 

A

A. Window

B

B. Adjustment Nut

 

 

 

C. .016”-.018” (0,40-0,45mm) Feeler Gauge

Figure 30. PTO Clutch Adjustment

A.Adjustment Window (Qty. 3, one shown)

B.Adjustment Nut

PTO CLUTCH ADJUSTMENT

WARNING

 

 

 

Reproduction

Check the PTO clutch adjustment after every 100

To avoid serious i jury, perform adjustments

hours of operation. Also perform the following

only with engine st

pped, key removed and

procedure if the clutch is slipping or will not engage,

actor on level gr

u d.

or if a new clutch has been installed.

 

 

1. Remove key from ignition switch and disconnect

Blade Brake Check

spark plug wires to prevent the possibility of

 

 

accidental starting while the PTO is being

Mower blades and mower drive belt should come to a

adjusted.

 

complete stop within seven (7) seconds after electric

2. See Figure 30. Note the position of the 3

PTO switch is turned off.

adjustment windows (A) in the side of the brake

1. With parking brake engaged, PTO disengaged

plate and the nylock adjustment nuts (B).

and an operator in the seat, start the engine.

3. Insert a .016”-.018” (0,40-0,45mm) feeler gauge

2. Have an assistant observe the mower drive belt

(C) through each window, positioning the gauge

through the open end of the left-hand arbor cover.

between the rotor face and the armature face as

Engage the PTO and wait several seconds.

shown in Figure 31.

 

 

Disengage the PTO and check the amount of time

4. Alternately tighten the adjustment nuts (B, Figure

it takes for the mower drive belt to stop.

30) until the rotor face and armature face just

3. If the mower drive belt does not stop within seven

contacts the gauge.

 

 

(7) seconds, perform the PTO Clutch Adjustment.

5. Check the windows for an equal amount of

If the belt still does not stop within seven (7)

tension when the gauge is inserted and removed,

seconds, see your dealer.

and make any necessary adjustments by

 

 

tightening or loosening the adjustment nuts.

 

 

NOTE: The actual air gap between the rotor and armature may vary even after performing the adjustment procedure. This is due to dimensional variations on component parts, and is an acceptable condition.

6.Check the mower blade stopping time. The mower blades and mower drive belt should come to a complete stop within seven (7) seconds after the electric PTO switch is turned off.

Troubleshooting

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