Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure
CLUTCH CABLE
VINYL SPRING
1/16" TO 1/8" | CLUTCH CABLE |
away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
UPPER SPRING
LOWER SPRING
SPRING HOOK
4.Sharpen blade on a grinding wheel at an angle of
22to 28 degrees. DO NOT sharpen blade beyond original cutting edge. See Figure 4.4.
DO NOT SHARPEN |
|
BEYOND ORIGINAL | _ |
CUTT,NGEDGE 22 8o
| BLADE | TIP I |
|
| / |
_.__._ | END VIEW | OF |
| BLADE ASSEMBLY | |
/" | ORIGINAL CUTTING EDGE |
|
FIGURE 4.4
5.Check blade for balance. If necessary, correct balance by grinding heavy end of blade.
6.Reinstall blade. See Figure 4.3. Check torque of blade retaining cap screw. Recommended torque should be 40 ft. Ibs.
NOTE: The following sections 4.2 through 4.4 are for
4.2WHEEL DRIVE CONTROL ADJUSTMENT
1.The wheel drive control is properly adjusted when there is 1/16" to 1/8" clearance between the
inside of the spring hook and the inside of the clutch cable eye with the wheel drive control released. See Figure 4.5.
CABLE
EYE
FIGURE 4.5
2.To adjust, unhook upper spring from cable eye and rotate spring in direction required to extend or shorten spring length.
3.Rehook upper spring to cable eye and check clearance. Repeat procedure if required.
NOTE: The vinyl spring cover should be kept over the spring at all times except for adjustments.
4.If the wheel drive control fails to return quickly to the "OFF" position when released, check for binding at the cable holdings located on the side of the right handle. The upper clip should be located 2" below the upper knob; the lower clip should be 4" above the lower knob. The cable should slide freely with the clips installed at these locations.
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