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: Drain fuel 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

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 on “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.

position.

5. Hold the slotted end of the drive disc bolt with a

DRIVE

IDLER

PULLEY DIFFERENTIAL BRACKET

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

4.15.

 

PULLEY POSITION

PULLEYPOLY-V BELT

HEX SHAFT

 

BELT GUIDE

DRIVEN

 

PULLEY

 

DRIVE DISC

 

 

 

 

ROUTING OF POLY-V BELT

SLOT IN END

 

FIGURE 4.17

BUSHING

 

OF DRIVE DISC

 

 

 

BOLT

 

 

BOLT RETAINER

DECK BRACKET (PARTIALLY SHOWN)

INTERNAL TOOTH LOCKWASHER

NUT

FIGURE 4.16

18

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Image 18
Snapper EP2167517BV, ERP2167517BV important safety instructions Pulley Position
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EP2167517BV, ERP2167517BV specifications

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