Snapper RP217250 Operation Manual - Page 27

Maintenance

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Maintenance Engine Drive Belt Replacement (Stretch Type Belts - Continued) A 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 B 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. C 3. Remove the driven disc. Refer to the Section entitled "Driven Disc Replacement" for driven disc D removal procedure. 4. Drain the fuel tank before tipping the mower. Do E not tilt the mower with the spark plug or carburetor down. Tilt the mower up on its rear wheels F and remove the blade and blade hub. Assistance G 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 n (G) and internal tooth lock washer (F). 6. Remove the belt cover, located under the deck. tio 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 r c deck. 9. Loop the belt around the pulley on the bottom of fo u the drive disc. t d 10.Reinstall the drive disc and retaining hardware. o o IMPORTANT: 1) The square shoulder of the drive disc r bolt must fit into the square hole of the bushing. 2) The square end of bushing must fit into the bracket slot. N ep 11.Reinstall the belt cover and tighten the bolts securely. 12.Reinstall the blade hub and cutter blade. R Recommended torque for the blade cap screw is 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). E A C 40 lb-ft (54 N.m). B D G F Figure 36: Poly-v belt routing en 27

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Not for
Reproduction
27
Maintenance
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 carbure-
tor 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 pul-
ley 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.
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 lb-ft (54 N.m).
F
Figure 35: Removing the drive disc
G
E
C
D
A
B
Transmission Poly-V Belt Replacement
1. Remove the driven disc. Refer to the Section enti-
tled “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)
.
Figure 36: Poly-v belt routing
G
A
F
B
D
E
C
en