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14
Maintenance
Maintenance (Continued)
Blade Sharpening (Continued)
4. Sharpen the blade on a grinding wheel at an angle of 22
to 28 degrees
(B, Figure 13)
. DO NOT sharpen the blade
beyond the original cutting edge
(A)
.
5. Check blade for balance. If necessary, correct balance by
grinding heavy end of blade.
6. Reinstall blade
(B, Figure 12)
. Note the correct
assembly order:
(A) Blade hub
(B) Blade (flange facing down)
(C) Capscrews
(D) Nuts
7. Check torque of blade retaining cap screw.
Recommended torque should be 40 ft. lbs.
Wheel Drive Control Adjustment
(Engine To Transmission Drive Belt)
The wheel drive control requires periodic adjustment to
maintain proper engine to transmission drive belt tension.
The adjustment is located on the right handle and requires
no tools.
IMPORTANT:
DO NOT operate the engine when inspecting or
adjusting the drive belt.
1. Visually check the engine drive belt for cracking, fraying,
severed or belt strands exposed. Replace the belt before
operating the mower.
2. Check for proper drive belt tension:
STOP the engine.
Shift the ground speed control to 1st and engage
the wheel drive control.
With the wheel drive control
(A, Figure 14)
engaged, pull the mower handles, moving the
mower rearward.
Observe the rear wheels. If the rear wheels slide
on the surface (no rotation) the belt is properly
tensioned and the control does not require
adjustment.
3. If the rear wheels rotate, increase belt tension by
rotating the thumb screw
(B)
COUNTER-CLOCKWISE.
4. Turn the thumb screw one turn at a time and recheck
tension.
5. When proper belt tension has been set, operate the
machine and verify proper wheel drive control function.
IMPORTANT:
DO NOT over-tighten the wheel drive control.
DO NOT operate if the control or drive does not function
properly. Contact your local SNAPPER Dealer for assistance.
IMPORTANT:
If the machine creeps forward after the wheel
drive control is released, the cable is too tight and must be
readjusted to eliminate all forward movement. The machine
must not have any forward movement when the wheel drive
control is disengaged. If the wheel drive control fails to
return quickly to the “OFF” position when released, check for
a broken, binding, or kinked cable.
Figure 14: Wheel drive control adjustment
Do not sharpen
beyond original
cutting edge
22-28
0
Figure 13: Sharpening the mower blade
A
B
A
B
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.
Wear heavy leather gloves when handling or working
around cutting blades. Blades are extremely sharp and can
cause severe injury.
!
!
