Snapper NP2167519B Engine Drive Belt Replacement Stretch Type Belts - Continued, A B C D E F G

Maintenance (Continued)

Maintenance

! 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.

Engine Drive Belt Replacement (Stretch Type Belts - Continued)

IMPORTANT: Drain the fuel tank before tipping the mower. DO NOT tip the machine with the carburetor or spark plug down. Oil from the 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 the Section entitled
	“Driven Disc Replacement” for driven disc removal
	procedure.
4.	Drain the fuel tank before tipping the mower. Do not tilt
	the mower with the spark plug or carburetor down. Tilt
	the mower up on its rear wheels and remove the blade
	and blade hub. Assistance from another person may be
	necessary to hold the mower in the tilted position.
5.	Hold the slotted end of the drive disc bolt (B, Figure 35)
	with a screwdriver and remove the nut (G) and internal
	tooth lock washer (F).
6.	Remove the belt cover, located under the deck.
7.	Lift the drive disc (A) up and remove the worn belt.
8.	Loop one end of the new belt over the engine pulley and
	insert the other end through the slot in the deck.
9.	Loop the belt around the pulley on the bottom of the
	drive disc.

A

B

C

D

E

F

G

Figure 35: Removing the drive disc

Transmission Poly-V Belt Replacement

1.Remove the driven disc. Refer to the Section entitled “Replacing Driven Disc Rubber Ring”.

2.Note the routing of the old belt around the three pulleys before removing it.

3.Place the new Poly-V Belt (A, Figure 36) over the end of the hex shaft (B) and onto the drive pulley (C).

4.Work the belt onto the top of the idler pulley (D).

5.Twist the belt sideways and pull it upward between the differential bracket (E) and driven pulley (F) and then down into the pulley groove. Make sure the Poly-V Belt is above the belt guide (G).

10. Reinstall the 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 the belt cover and tighten the bolts securely.

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

C

B

D

G

E

A

F

Figure 36: Poly-v belt routing

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