Section 4 - REPAIR & ADJUSTMENTS
WARNING
Before attempting any adjustments or repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug.
4.4.1. Engine Drive Belt Replacement
3.Remove the driven disc. Refer to Section on “Replacing Driven Disc RubberRing” for driven disc removal procedure.
DRIVE
DISC
SLOT IN END
OF DRIVE | POSITION SCRAPER | |
TO CLEAR “V” OF | ||
DISC BOLT | ||
PULLEY | ||
| ||
BUSHING |
|
IDLER |
| |
ARM | BOLT | |
| ||
IDLER | RETAINER | |
INTERNAL TOOTH | ||
SPRING |
IDLER
SPRING
RIGHT WHEEL BRACKET
PULL SPRING THROUGH
LARGE HOLE & HOOK
INTO SMALL HOLE
FIGURE 4.18
4.4.2.Transmission
LOCKWASHER |
DECK BRACKET |
(PARTIALLY |
DRIVEN
IDLER
PULLEY DIFFERENTIAL BRACKET
SHOWN) | NUT |
| |
| FIGURE 4.17 |
4.Do not tilt mower with spark plug or carburetor down. 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 position.
5.Hold the slotted end of the drive disc bolt with a screwdriver and remove the nut and internal tooth lock washer. See Figure 4.17.
6.Lift the drive disc off the idler arm and remove worn belt.
7.Loop one end of new belt over engine pulley and insert the other end through slot in deck. See Figure
8.Loop the belt around the pulley on the bottom of the drive disc.
9.Reinstall drive disc and retaining hardware.
10.Reinstall blade hub and cutter blade. Recom- mended torque for blade cap screw is 30 to 40 ft. lbs.
11.Use a stiff wire, such as a coat hanger, with a hook fashioned on one end to pull the hooked end of the idler spring through the large hole in the right wheel bracket. See Figure 4.18.
12.Reinstall the driven disc assembly.
PULLEYPOLY-V
BELT
HEX SHAFT
BELT GUIDE | DRIVE |
| PULLEY |
ROUTING OF
FIGURE 4.19
3.Place new
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
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