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

Section 6

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

STT-31EFI-SS specifications

Scag Power Equipment is renowned for producing high-quality commercial mowing equipment, and the STT-31EFI-SS stand-on mower is no exception. Designed with professional landscapers in mind, the STT-31EFI-SS offers a perfect blend of power, efficiency, and maneuverability.

One of the standout features of the STT-31EFI-SS is its 31 hp EFI (Electronic Fuel Injection) engine. This powerhouse engine not only delivers impressive power but also enhances fuel efficiency. The EFI technology ensures that the engine operates at optimal performance by automatically adjusting the air-to-fuel ratio under varying conditions. This results in smoother starts, improved throttle response, and reduced emissions, making the mower both environmentally friendly and cost-effective in the long run.

The STT-31EFI-SS features a durable construction built to withstand the rigors of commercial use. Its robust steel frame and heavy-duty components are designed for maximum longevity. Moreover, the mower is equipped with Scag's cutting-edge Hydro-Gear ZT-3400 transmission, which offers exceptional speed and agility. This transmission allows operators to navigate tight spaces with ease and provides a top speed of up to 10.5 mph, making it ideal for large properties or demanding mowing tasks.

Operator comfort is another key aspect of the STT-31EFI-SS. The stand-on design promotes better visibility and quick maneuverability, enabling operators to navigate obstacles with confidence. The padded operator platform and adjustable controls ensure a comfortable experience, even during extended use. Additionally, the mower’s low center of gravity enhances stability on slopes and uneven terrain.

One of the most notable characteristics of the STT-31EFI-SS is its advanced cutting deck. The mower features a 48", 52", or 61" Velocity Plus cutting deck, which is known for delivering a superior cut and impressive grass dispersal. The deck is engineered for optimal airflow, enabling precision mowing while preventing clumping. This technology ensures that grass clippings are evenly distributed, resulting in a healthier lawn appearance.

In conclusion, the Scag STT-31EFI-SS stand-on mower integrates powerful performance, innovative engineering, and comfort. Featuring a reliable EFI engine, robust construction, and exceptional maneuverability, this mower stands out as an excellent choice for professional landscapers seeking efficiency and reliability in their equipment.

Scag Power Equipment STT-31EFI-SS operating instructions Adjustments, Brake Adjustment

Models: STT-31EFI-SS