Wheel Drive Control Adjustment - Snapper 20 Série Instructions De Sécurité Et Mode D'emploi

Maintenance (Continued)
!
WARNING
DO NOT attempt any maintenance, adjustments or service
with engine and blade running. STOP engine and blade.
Disconnect spark plug wire and secure away from spark
plug. Engine and components are HOT. Avoid serious
burns, allow sufficient time for all components to cool.
Blade Sharpening (Continued)
4. Sharpen the blade on a grinding wheel at an angle of 22
to 28 degrees (B, Figure 21). DO NOT sharpen the blade
beyond the original cutting edge (A).
Do not sharpen
beyond original
cutting edge
A
Figure 21: Sharpening the mower blade
5. Check blade for balance. If necessary, correct balance by
grinding heavy end of blade.
6. Reinstall blade (B, Figure 20). Note the correct
assembly order:
(A) Blade hub
(B) Blade
(C) Blade flange (facing up)
(D) Cone washer (concave side up)
(E) Capscrew
7. Check torque of blade retaining cap screw.
Recommended torque should be 40 ft. lbs.

Wheel Drive Control Adjustment

(Self-Propelled Models Only)
1. The wheel drive control is properly adjusted when there
is 1/16" to 1/8" clearance (G, Figure 22) between the
inside of the spring hook (E) and the inside of the clutch
cable eye (C) with the wheel drive control released.
!
22-28 0
B
End view of
blade assembly
B
G
D
F
D
Figure 22: Wheel drive control adjustment
2. To adjust, unhook the upper spring (D) from the cable
eye and rotate the spring in the direction required to
extend or shorten the spring length.
3. Rehook the upper spring to the cable eye and check
clearance. Repeat the procedure if required.
Note: The vinyl spring cover (B) 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.
A
C
E
A
C
13