Section 7

R

B. Blade Sharpening

- NOTE -

If possible, use a file to sharpen the blade. Using a wheel grinder may burn the blade.

- NOTE -

DO NOT sharpen the blades beyond 1/3 of the width of the blade. See Figure 7-6.

1.Sharpen the cutting edge at the same bevel as the original. Sharpen only the top of the cutting edge to maintain sharpness. See Figure 7-6.

Angle Blade Back

Do Not Cut In

 

X Must NOT Exceed

30

1/3 Blade Width

SGB033

 

Figure 7-6. Blade Sharpening

2.Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades.

C. Blade Replacement

WARNING

Always wear proper hand and eye protection when working with cutter blades.

1.Remove the ignition key before replacing the blades.

2.Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height position to prevent the cutter deck from falling.

3.Secure the cutter blades to prevent them from rotating, (use the optional Blade Buddy tool P/N 9212, to assist in securing the cutter blades), remove the nut from the blade attaching bolt. Remove the cutter blade, bolt and spacer from the spindle shaft. See Figure 7-7.

- NOTE -

The front of the machine will have to be raised slightly to remove the blade bolt from the cutter spindle.

4.To install the new cutter blade, put the flat washer onto the blade bolt and slide the bolt into the hole in the cutter blade.

HEx NUT-TORqUE

TO 75 LB-FT

SPINDLE

CUTTER

SHAFT

DECK

 

HEx HEAD

BOLT / NUT

SPINDLE

ASSEMBLY

CUTTER BLADE

SPACER

CUTTER

BLADE

WASHER

HEx HEAD BOLT

390S0160

 

 

Figure 7-7. Blade Replacement

- NOTE -

Be sure that the blade is installed with the lift wing toward the top.

5.Install the spacer onto the blade bolt and insert the bolt into the cutter spindle shaft.

6.Install the hex nut to the blade bolt at the top of the cutter spindle. Secure the blades from rotating and torque to 75 lb-ft. See Figure 7-7.

7.10 Tires

Check the tire pressures after every 8 hours of operation or daily.

Caster Wheels

Flat Free

Drive Wheels

12 PSI

37

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Scag Power Equipment STT61V-25KBD-SS manual Tires, Blade Sharpening, Blade Replacement
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STT61V-25KBD-SS specifications

Scag Power Equipment has long been recognized for its durable, high-performance lawn care machines, and the STT61V-25KBD-SS is no exception. This commercial-grade lawn mower is designed to meet the demanding needs of professional landscapers and homeowners alike, offering unmatched efficiency, comfort, and cutting quality.

At the heart of the STT61V-25KBD-SS is a robust 25 horsepower Kawasaki engine, known for its reliability and outstanding power delivery. This powerhouse enables the mower to navigate through tough grass and varied terrains seamlessly, ensuring that no job is too big or challenging. The engine’s performance is complemented by a hydrostatic drive system, which provides smooth and responsive operation without the need for gear shifting, allowing operators to focus on their mowing task without interruption.

One of the standout features of the STT61V-25KBD-SS is its 61-inch Velocity Plus cutting deck. This innovative deck design promotes superior airflow, resulting in an exceptional cut quality and a clean discharge of clippings. The three-blade system allows for versatile cutting options, making it suitable for both residential lawns and commercial properties. Users will appreciate the adjustable cutting height, which offers a range between 1 inch and 4.5 inches to accommodate various grass types and conditions.

In addition to its cutting prowess, the STT61V-25KBD-SS prioritizes operator comfort and convenience. It features a comfortable seat with cushioning and armrests, providing support during long hours of operation. The ergonomic controls ensure easy maneuverability, allowing operators to navigate efficiently around obstacles.

Durability is another hallmark of Scag Power Equipment, and the STT61V-25KBD-SS is no exception. Its heavy-duty steel frame and components are engineered to withstand the rigors of commercial use, ensuring longevity and reliability. The mower's easy-to-access maintenance points simplify routine servicing, further enhancing its practicality.

Overall, the Scag Power Equipment STT61V-25KBD-SS is a powerful, versatile, and durable mower that stands out in the commercial lawn care market. With its impressive engine, advanced cutting deck technology, and operator-focused design, it represents an excellent investment for anyone serious about maintaining pristine lawns. Whether for professional landscaping or personal use, this mower delivers exceptional results time and time again.
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