Section 4 - ADJUSTMENTS & REPAIR

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. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury. DO NOT use a cutting blade that shows signs of excessive wear or damage.

4.4.1.Engine Drive Belt Replacement (Stretch Type Belts)

(Continued From Previous Page)

IMPORTANT: Drain fuel tank before tipping mower. 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.

3.Remove the driven disc. Refer to Section “Replacing Rubber Driven Disc Ring” for driven disc

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 4.16.

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

PULLEY POSITION

DRIVE DISC

SLOT IN END OF DRIVE DISC

BOLT

BUSHING

DECK BRACKET

(PARTIALLY SHOWN)

BOLT RETAINER

INTERNAL TOOTH

LOCKWASHER

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 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 4.17.

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 4.17.

IDLER

PULLEY

DRIVEDIFFERENTIAL

PULLEYBRACKET

POLY-V

BELT

HEX SHAFT

BELT GUIDE

DRIVEN

 

PULLEY

ROUTING OF POLY-V-BELT

FIGURE 4.17

NUT

FIGURE 4.16

20

Page 20
Image 20
Snapper MR216017B important safety instructions Pulley Position, Transmission Poly-V Belt Replacement

MR216017B specifications

The Snapper MR216017B is a robust and reliable lawn mower designed for homeowners seeking an efficient and effective way to maintain their lawns. This particular model stands out with a variety of features and technologies that enhance its performance and user-friendliness, making it an ideal choice for both novice and experienced gardeners.

One of the key features of the Snapper MR216017B is its powerful 163cc engine. This engine ensures consistent power and reliable starting, which is essential for tackling various types of grass and terrain. The self-propelled feature is another significant advantage, as it allows users to effortlessly navigate through their lawns without excessive physical exertion. This is particularly beneficial for larger properties or those with uneven ground.

The cutting deck of the Snapper MR216017B is designed for superior performance. With a 21-inch steel deck, it provides a wide cutting path that allows for faster mowing. The durable construction of the deck ensures longevity and resistance against wear and tear. Additionally, the mower comes with a 3-in-1 cutting system, which means it offers mulching, bagging, and side discharge options. This versatility enables users to select the best cutting method for their lawn care needs.

User comfort and convenience are also prioritized in the design of the Snapper MR216017B. It features an ergonomic handle that can be adjusted to multiple heights, accommodating various user preferences and ensuring a comfortable grip during operation. The readily accessible controls make it easy to switch between the different mowing modes and adjust the cutting height, allowing for customization based on grass length and type.

Moreover, the Snapper MR216017B incorporates innovative technologies that enhance its overall functionality. The mower's signature “Easy Start” system simplifies the starting process, reducing the hassle often associated with traditional mowers. The rear-wheel drive offers improved traction and maneuverability, especially on hilly or challenging terrains.

In summary, the Snapper MR216017B is equipped with a powerful engine, a versatile 3-in-1 cutting system, and features that enhance user comfort and convenience. With its durable construction and innovative technologies, this mower stands out as a reliable tool for maintaining a pristine lawn. Whether you are a seasoned landscaper or a first-time mower user, the Snapper MR216017B is designed to meet your lawn care needs effectively and efficiently.