Section 4 - REPAIR & ADJUSTMENTS

WARNING

DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.

4.4.1.Engine Drive Belt Replacement (Stretch Type Belts)

(Continued From Previous Page)

IMPORTANT: DO NOT tip machine with carburetor or spark plug down. Oil from crankcase will saturate the air filter and cause the engine to be hard to start or not start at all. If contamination does occur, the air filter will have to be replaced.

9.Loop the belt around the pulley on the bottom of the drive disc.

10.Reinstall drive disc and retaining hardware. IMPORTANT: 1) The square shoulder of the drive disc bolt must fit into the square hole of the bushing. 2) The square end of bushing must fit into the bracket slot.

11.Reinstall belt cover and tighten bolts securely.

12.Reinstall blade hub and cutter blade. Recommended torque for blade cap screw is 30 to 40 ft. lbs.

4.4.2.Transmission Poly-V Belt Replacement 1. Remove the driven disc. Refer to Section “Replacing Driven Disc Rubber Ring” for procedure. 2. Note the routing of the old belt around the three pulleys before removing it. See Figure 4.18.

3. Remove the driven disc. Refer to Section

“Replacing Rubber Driven Disc Ring” for driven disc

DRIVE

IDLER

PULLEY DIFFERENTIAL BRACKET

assembly removal procedure.

4.

Tilt mower up on its rear wheels and remove

blade and blade hub. Assistance from another

person may be necessary to hold mower in the tilted

position.

5.

Hold the slotted end of the drive disc bolt with a

screwdriver and remove the nut and internal tooth

lock washer. See Figure 4.17.

6.

Remove the belt cover located under deck.

7.

Lift the drive disc up and remove worn belt.

8.

Loop one end of new belt over engine pulley and

insert the other end through slot in deck. See Figure

4.16.

 

PULLEY POSITION

PULLEYPOLY-V

BELT

HEX SHAFT

BELT GUIDE

DRIVEN

 

PULLEY

ROUTING OF POLY-V BELT

SLOT IN END

OF DRIVE DISC

BOLT

DECK BRACKET (PARTIALLY SHOWN)

DRIVE DISC

BUSHING

BOLT RETAINER

INTERNAL TOOTH LOCKWASHER

FIGURE 4.18

3.Place new Poly-V-Belt over end of hex shaft and onto driven pulley.

4.Work belt onto top of idler pulley.

5.Twist belt sideways and pull it upward between the differential bracket and drive pulley and then down into the pulley groove. Make sure the Poly-V- Belt is above belt guide. See Figure 4.18.

NUT

FIGURE 4.17

17

Page 17
Image 17
Snapper EFRP216516BV important safety instructions Pulley Position

EFRP216516BV specifications

The Snapper EFRP216516BV is a powerful, versatile lawn mower designed for both residential and professional use. It combines state-of-the-art engineering with user-friendly features, making it an excellent choice for those seeking efficiency and ease of use in lawn maintenance.

One of the standout features of the EFRP216516BV is its 21-inch mowing deck, which provides a perfect balance between maneuverability and coverage. This size is ideal for navigating through tight spaces while still allowing for efficient grass cutting on larger lawns. The durable steel construction ensures longevity and reliability, so users can depend on this mower for years to come.

The EFRP216516BV comes equipped with a robust 163cc OHV engine, delivering reliable power to handle tough mowing tasks. The engine's overhead valve design promotes fuel efficiency and reduces emissions, making it a more environmentally friendly choice in the lawn care segment. Additionally, the mower features adjustable cutting heights, allowing users to customize their mowing experience based on grass length and conditions.

Technologically, the Snapper EFRP216516BV incorporates a Ready Start system, which eliminates the need for priming and choking. This convenience allows users to start the mower effortlessly with just a pull of the handle. The self-propelled feature further enhances ease of use; the variable speed control allows operators to adjust their pace according to their preference and the terrain, ensuring a comfortable mowing experience.

Another notable characteristic is the mower's mulching capability. With this feature, grass clippings can be finely chopped and returned to the lawn, providing natural nutrients to the soil and cutting down on yard waste. The EFRP216516BV also includes a rear bagging option for those who prefer to collect clippings, making it highly adaptable to different lawn care needs.

The ergonomic design of the handle provides comfort during extended use, and the foldable feature allows for easy storage in smaller spaces. Overall, the Snapper EFRP216516BV stands out as a reliable, powerful, and feature-rich lawn mower that meets the demands of homeowners and landscape professionals alike.