Scag Power Equipment STT61V-31KB-DF Manuel D’Utilisation

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Section 6
PARKING BRAKE ADJUSTMENT
6.1 
 WARNING
Do  not  operate  the  mower  if  the  parking  brake 
is  not  operable.  Possible  severe  injury  could 
result. 
The parking brake linkage should be adjusted whenever 
the parking brake lever is placed in the “ENGAGE” position 
and the parking brake will allow the mower to move. If the 
following procedures do not allow you to engage the parking 
brake properly, contact your Scag dealer for further brake 
adjustments.
Position a floor jack under the rear of the machine. 
1. 
Raise the machine and support it to prevent it 
from falling. Block the caster wheels to prevent the 
machine from moving. Remove the drive wheels.
With the brake lever in the disengaged position, 
2. 
check the distance between the top of the frame 
tube and the bottom of the brake handle. The 
distance should be 2" to 2-1/4" (See Figure 6-1).
If the distance is not at the specified measurement, 
3. 
adjust by loosening the jam nuts at both ends of the 
brake control rod and turning the rod until the proper 
distance is achieved. (See Figure 6-1). Tighten the 
jam nuts.
With the brake in the engaged position, check the 
4. 
spring compression between the two flat washers on 
the LH side of the machine. The distance should be 
1-7/16". (See Figure 6-2).
If the distance is not at the specified measurement, 
5. 
loosen the jam nut at the rod end side of the brake 
actuator rod. (See Figure 6-2).
Turn the adjustment bolt (clockwise to decrease 
6. 
the spring compression or counter clockwise to 
increase the spring compression) until the 1-7/16" 
measurement is achieved and tighten the jam nut. 
(See Figure 6-2).
Repeat steps 4 though 6 on the RH side of the 
7. 
machine.
Replace the drive wheels and test the brake.
8. 
ADJUSTMENTS
- NOTe -
If this procedure does not achieve proper brake 
adjustment, please contact your authorized Scag 
dealer.
390S0152-1
LOOSEN HERE
2" to 2-1/4" Clearance
Brake Adjustment
Figure 6-1. 
1-7/16”
LOOSEN HERE
ADJUST HERE
Brake Rod Adjustment
Figure 6-2.