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Maintenance(Continued)
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WARNING
DONOTattempt any maintenance,adjustments or service
with engine and blade running. STOPengineand blade.
Disconnectspark plug wire and secure awayfrom spark
plug. Engineand components are HOT.Avoid serious
burns, allow sufficient time for all components to cool.
EngineDriveBelt Replacement(StretchType
Belts- Continued)
IMPORTANT:Drainthe fuel tank beforetipping the mower.
DONOTtip the machinewith the carburetor or spark plug
down. Oil from the crankcasewill saturatethe air filter and
causethe engineto be hard to start or not start at all. If
contamination doesoccur, the air filter will haveto be
replaced.
3. Removethe driven disc. Referto the Section entitled
"Driven Disc Replacement"for driven disc removal
procedure.
4. Drain the fueltank beforetipping the mower. Do not tilt
the mower with the spark plug or carburetor down. Tilt
the mower up on its rear wheels and removethe blade
and bladehub. Assistancefrom another person may be
necessaryto 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. Removethe belt cover, located under the deck.
7. Lift the drive disc (A) up and removethe worn belt.
8. Loop one end of the new belt overthe engine pulley and
insert the other end through the slot inthe deck.
9. Loop the belt around the pulleyon the bottom of the
drive disc.
10.Reinstallthe drive disc and retaining hardware.
IMPORTANT:1) Thesquareshoulder of the drive disc bolt
must fit into the square holeof the bushing. 2) Thesquare
end of bushing must fit into the bracket slot.
11.Reinstallthe belt cover and tighten the bolts securely.
12.Reinstallthe blade hub and cutter blade. Recommended
torque for the blade cap screw is 40 ft. Ibs.
------4b
)
Figure35. Removingthe drive disc
Transmission Poly-V Belt Replacement
1. Removethe driven disc. Referto the Section entitled
"Replacing Driven Disc Rubber Ring".
2. Note the routing of the old belt around the three pulleys
before removing it.
3. Placethe new Poly-V Belt(A, Figure36) 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 betweenthe
differential bracket(E) and driven pulley (F) and then
down into the pulley groove. Makesure the Poly-V Belt
is abovethe belt guide (G).
J
Figure36. Poly-v belt routing
18 www.snapper.com
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