Scag Power Equipment STT-31EFI-SS Adjustments, Parking Brake Adjustment, Section

Section 6 R

ADJUSTMENTS

6.1 PARKING BRAKE ADJUSTMENT

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.

- NOTE -

If this procedure does not achieve proper brake adjustment, please contact your authorized Scag dealer.

LOOSEN HERE

1. Position a floor jack under the rear of the machine.

Raise the machine and support it to prevent it

from falling. Block the caster wheels to prevent the

2" to 2-1/4" Clearance

390S0152-1

	machine from moving. Remove the drive wheels.
2.	With the brake lever in the disengaged position,
	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).
3.	If the distance is not at the specified measurement,
	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.
4.	With the brake in the engaged position, check the
	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).
5.	If the distance is not at the specified measurement,
	loosen the jam nut at the rod end side of the brake
	actuator rod. (See Figure 6-2).
6.	Turn the adjustment bolt (clockwise to decrease
	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).
7.	Repeat steps 4 though 6 on the RH side of the
	machine.
8.	Replace the drive wheels and test the brake.

Figure 6-1. Brake Adjustment

LOOSEN HERE

ADJUST HERE

Figure 6-2. Brake Rod Adjustment

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