14
Maintenance
Wheel Drive Control Adjustment
The wheel drive control lever
(A, Figure 18)
should engage
the transmission when the lever is squeezed back against the
handlebar, and disengage the transmission when the lever is
released.
If the transmission does not fully engage or disengage,
adjustment may be performed as follows:
1. Remove the rear cover from the mower. Refer to the
section entitled “Rear Cover Removal & Installation”.
2. With the wheel drive control lever in the ‘DISENGAGE’
position, the spring
(A, Figure 19)
on the end of the
wheel drive control cable should have no tension.
Measure the overall length of the unextended spring
(B)
.
3. Fully engage the lever, and measure the length of the
extended spring. The overall spring length should
increase by 0.020 – 0.025”.
4. To adjust spring extension:
a.
Disengage the lever.
b.
To increase (+) the extended spring length, loosen
the jam nut
(B, Figure 20)
and rotate the ferrule
(C)
below the adjustment turnbuckle
(A)
, located on the
lower end of the wheel drive control cable, one-half
turn out from the turnbuckle. Tighten the jam nut.
c.
To decrease (-) the extended spring length, loosen
the jam nut, and rotate the ferrule one-half turn in
toward the turnbuckle. Tighten the jam nut.
5. Engage the lever and recheck the extended spring
length. Repeat Step 4 as needed.
IMPORTANT: INCORRECT ADJUSTMENT CAN CAUSE
DAMAGE TO THE TRANSMISSION.
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Figure 20: Adjusting the transmission spring tension
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.
!
!
Figure 18: Mower drive controls
B
A
B
C
A
+
-
+
-
(Components removed for clarity)
Maintenance (Continued)
Figure 19: Measuring the disengaged transmission
spring length (viewed from below)
A
B
Not
for
Reproduction