Troubleshooting, Adjustments, & Service

B

B

 

B

A

 

Figure 26. PTO Clutch Adjustment

A.Adjustment Window (Qty. 3, one shown)

B.Adjustment Nut

A

B

C

Figure 27. Adjust PTO Clutch

A.Window

B.Adjustment Nut

C. .016”-.018” (0,40-0,45mm) Feeler Gauge

PTO CLUTCH ADJUSTMENT

Check the PTO clutch adjustment after the initial 25 hour break-in period and then after every 100 hours of operation. Also perform the following procedure if the clutch is slipping or will not engage, or if a new clutch has been installed.

1.Remove key from ignition switch and disconnect spark plug wires to prevent the possibility of accidental starting while the PTO is being adjusted.

2.See Figure 26. Note the position of the 3 adjustment windows (A) in the side of the brake plate and the nylock adjustment nuts (B).

3.Insert a .016”-.018” (0,40-0,45mm) feeler gauge (C) through each window, positioning the gauge between the rotor face and the armature face as shown in Figure 27.

4.Alternately tighten the adjustment nuts (B, Figure 26) until the rotor face and armature face just contacts the gauge.

5.Check the windows for an equal amount of tension when the gauge is inserted and removed, and make any necessary adjustments by tightening or loosening the adjustment nuts.

NOTE: The actual air gap between the rotor and armature may vary even after performing the adjustment procedure. This is due to dimensional variations on component parts, and is an acceptable condition.

6.Check the mower blade stopping time. The mower blades and mower drive belt should come to a complete stop within five (5) seconds after the electric PTO switch is turned off.

WARNING

To avoid serious injury, perform adjustments only with engine stopped, key removed and rider on level ground.

BLADE BRAKE CHECK

Mower blades and mower drive belt should come to a complete stop within five (5) seconds after electric PTO switch is turned off.

1.With parking brake engaged, PTO disengaged and an operator in the seat, start the engine engine.

2.Have an assistant observe the mower drive belt through the opening between the frame and top of mower deck. Engage the PTO and wait several seconds. Disengage the PTO and check the amount of time it takes for the mower drive belt to stop.

3.If the mower drive belt does not stop within five (5) seconds, perform the PTO Clutch Adjustment. If the belt still does not stop within five (5) seconds, see your dealer.

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Snapper 19HP, 20HP user manual PTO Clutch Adjustment, Blade Brake Check

19HP, 20HP specifications

The Snapper 20HP and 19HP lawn tractors are robust and efficient machines designed for both residential and commercial lawn maintenance. These models are recognized for their durability, comfort, and innovative technology.

One of the standout features of the Snapper 20HP and 19HP is their powerful Briggs & Stratton engine. With an impressive horsepower rating, these tractors can handle a variety of tasks ranging from mowing to towing. The engines are designed for easy starting, reliability, and long-lasting performance, ensuring that users can tackle even the toughest jobs without hesitation.

Both models boast a wide cutting deck, providing excellent mowing coverage and reducing the number of passes needed to achieve a well-manicured lawn. The cutting heights are adjustable, allowing users to customize the grass height according to their preferences. The 20HP version typically features a slightly larger deck, enhancing its efficiency for larger properties.

Comfort is a key aspect of the Snapper tractors. They come equipped with an ergonomically designed seat that offers ample support during prolonged use. The placement of controls is such that they are within easy reach, allowing for smooth operation. Additionally, the models provide a tight turning radius, making navigation around obstacles like flower beds and trees seamless.

Technologically, the Snapper 20HP and 19HP integrate features such as a hydrostatic transmission system. This provides users with a smooth driving experience and precise control over speed and direction without the need for shifting gears. The hydrostatic drive also minimizes wear and tear, extending the lifespan of the tractor.

Another notable characteristic of these models is their durable construction. Built with high-quality materials, the Snapper tractors are designed to withstand the rigors of frequent use. The chassis is sturdy, ensuring stability and support even on uneven terrain.

Maintenance is simplified with these tractors, featuring easy-access components that allow for quick servicing and upkeep. Regular maintenance checks can be performed without hassle, contributing to the tractors' longevity.

In conclusion, the Snapper 20HP and 19HP lawn tractors are ideal choices for homeowners and professionals alike. Featuring powerful engines, comfortable operation, innovative technology, and a focus on durability, these models ensure effective lawn care and performance for years to come.