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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 39)
with a screwdriver and remove the nut (F) and internal
tooth lock washer (E).
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.
10. Reinstall the drive disc and retaining hardware.
Note: 1) The square shoulder of the drive disc bolt must fit
into the square hole of the bushing (C). 2) The square end of
the bushing must fit into the bracket slot (D).
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 Nm).
39
26
Transmission Poly-V Belt Replacement
1. Remove the driven disc. See Driven Disc Replacement
.
2. Note the routing of the old belt around the three pulleys
before removing it.
3. Place the new Poly-V Belt (A, Figure 40) 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).
40
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