Adjustments and Service

 

 

A

B

 

B

 

 

B

 

 

C

 

 

Figure 20. Adjust PTO Clutch

 

B

A

 

 

Figure 19.

PTO Clutch Adjustment

WARNING

 

 

To avoid serious injury, perform adjustments only with

 

 

engine stopped, key removed and rider on level ground.

PTO Clutch Adjustment

 

nuts.

 

 

 

Reproduction

Check the PTO clutch adjustment after the initial 25 hour break-

 

in period and then after every 250 hours of operation. Also

Blade Brake Check

perform the following procedure if the clutch is slipping

r will

not engage, or if a new clutch has been installed.

 

M wer blades and m wer drive belt should come to a complete

1.

Remove key from ignition switch and disconnect spark plug

stop within f ve seconds after electric PTO switch is turned off.

 

wires to prevent the possibility of accidental s ar ing while

1. With parking brake engaged, PTO disengaged and an

 

the PTO is being adjusted.

 

 

operator in the seat, start the engine.

2. See Figure 19. Note the position of the 3 adjustment

2. Have an assistant observe the mower drive belt through the

 

windows (A) in the side of the brake plate and the nylock

opening between the frame and top of mower deck.

 

adjustment nuts (B).

 

 

Engage the PTO and wait several seconds. Disengage the

3.

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

PTO and check the amount of time it takes for the mower

 

through each window, positioning the gauge between the

drive belt to stop.

 

rotor face and the armature face as shown in Figu

20.

3. If the mower drive belt does not stop within five seconds,

4.

Alternately tighten the adjustment nuts (B, Figure 19) until

perform the PTO Clutch Adjustment. If the belt still does

 

the rotor face and armature face just contacts the gauge.

not stop within 5 seconds, see your dealer.

5. Check the windows for an equal amount of tension when the gauge is inserted and removed, and make any neces- sary adjustments by tightening or loosening the adjustment

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 with- in five seconds after the electric PTO switch is turned off.

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Snapper 285Z manual PTO Clutch Adjustment, Blade Brake Check, Perform the following procedure if the clutch is slipping

285Z specifications

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