Manuals / Scag Power Equipment / Lawn and Garden / Lawn Mower

Scag Power Equipment STT61V-27DFI-SS Throttle Control And Choke Adjustments, Belt Adjustment

Models: STT61V-35BVAC-SS STT-35BVAC-SS STT61V-27DFI-SS

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Section 6

6.Actuate the steering control levers forward and reverse several times and return them to the neutral position.

7.Check that the drive wheels remained in neutral and readjust if necessary.

8.Check that the steering control levers hit the stop before the pumps reach full stroke. Adjust as needed.

Tracking Adjustment

Caution

Stop the engine and remove the key from the ignition before making any adjustments. Wait for all moving parts to come to a complete stop before beginning work.

Caution

The engine and drive unit can get hot during operation causing burn injuries. Allow engine and drive components to cool before making any adjustments.

- NOTE -

Before proceeding with this adjustment, be sure that the caster wheels turn plus pivot freely and that the tire pressure in the drive wheels is correct. If the tire pressure is not correct, the machine will pull to the side with the lower pressure.

1.If at full speed the mower pulls right, it is an indication that the left wheel is turning faster than the right wheel. To adjust this condition, proceed as follows:

A. Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the LH steering control rod. Rotate the control rod to lengthen the rod and tighten the lock nuts. This will cause the control rod to stroke the LH pump less, slowing down the LH wheel. See Figure 6-4.

- NOTE -

If after making the adjustment as outlined in step 1A, the machine creeps forward or backward, perform the neutral adjustment. See Neutral Adjustment on page 25.

2.If at full speed the mower pulls left, it is an indication that the right wheel is turning faster than the left wheel. To adjust this condition, proceed as follows:

A. Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the RH steering control rod. Rotate the control rod to lengthen the rod and tighten the lock nuts. This will cause the control rod to stroke the RH pump less, slowing down the RH wheel. See Figure 6-3.

- NOTE -

If after making the adjustment as outlined in step 2A, the machine creeps forward or backward, perform the neutral adjustment. See Neutral Adjustment on page 25.

6.3Throttle Control And Choke Adjustments

These adjustments must be performed by your Scag dealer to ensure proper and efficient running of the engine. Should either need adjustment, contact your authorized Scag service center.

6.4 Belt Adjustment

WARNING

Before removing any guards, shut the engine off and remove the ignition key.

All drive belts are spring loaded and self-tensioning, however after the first 2, 4, 8 and 10 hours of operation, the belts should be checked for proper alignment and wear. Thereafter, check the belts after every 40 hours of operation or weekly, whichever occurs first.

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Scag Power Equipment STT61V-27DFI-SS Throttle Control And Choke Adjustments, Belt Adjustment, Tracking Adjustment
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STT61V-35BVAC-SS, STT-35BVAC-SS, STT61V-27DFI-SS specifications

Scag Power Equipment is well-known in the lawn care industry for its high-performance mowers and commercial-grade equipment, and the STT series represents the pinnacle of their innovation and engineering prowess. Among the most notable models are the STT61V-27DFI-SS, STT-35BVAC-SS, and STT61V-35BVAC-SS. Each of these mowers combines cutting-edge technology with user-friendly features, making them ideal choices for both commercial landscapers and avid homeowners.

The STT61V-27DFI-SS mower is powered by a dependable 27-horsepower Kohler EFI engine, offering exceptional fuel efficiency and reduced emissions. This model is equipped with a 61-inch cutting deck, providing an impressive cutting width that allows for quicker mowing. The mower’s unique design includes a heavy-duty steel frame and reinforced deck for durability, ensuring it can withstand the rigors of professional use. With large pneumatic tires, it offers superior traction and stability on various terrains, making it an excellent choice for uneven lawns.

Next, the STT-35BVAC-SS mowers are notably equipped with a specialized vacuum collection system. This model is designed to tackle leaves and debris, featuring a powerful 35-horsepower engine and a versatile collection system that efficiently gathers clippings. The unique bagging system reduces the need for subsequent clean-up, allowing users to complete their tasks more efficiently. Additionally, the STT-35BVAC-SS boasts a responsive hydrostatic transmission, providing seamless speed adjustments for varied mowing conditions.

Lastly, the STT61V-35BVAC-SS combines the superior engine performance of a 35-horsepower powerplant with the impressive 61-inch cutting deck. This model is particularly favored for its dual functionalities of quality mowing and debris management. Its advanced hydraulic lift system allows for quick adjustments, ensuring the optimal cutting height for each job. Users will appreciate the ease of use, with features such as ergonomic controls and plush seating designed for extended comfort during long mowing sessions.

All three models feature Scag's renowned attention to detail, including premium blade design for a clean cut and easy height adjustments. They are also backed by Scag's commitment to customer support and robust warranty options. These mowers exemplify Scag Power Equipment's dedication to quality, performance, and innovation, making them indispensable tools for any lawn care professional or weekend warrior. Whether tackling a residential yard or a commercial landscape, the STT series delivers unmatched reliability and efficiency.