Maintenance
! | 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.
Wheel Drive Control Adjustment
The drive handle (A, Figure 18) should engage the transmission when the handle is pushed forward, and should disengage the transmission when the handle is pulled fully back.
A |
Figure 18: Wheel drive controls
If the transmission does not 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 drive lever pulled fully back 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).
A |
B |
Figure 19: Measuring the disengaged transmission spring length
3.Push the drive lever fully forward, 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 handle.
b.To increase (+) the extended spring length, rotate the thumb wheel (A, Figure 20) upwards (counter- clockwise, from operator’s perspective).
c.To decrease
5.Push the drive handle fully forward and recheck the extended spring length. Repeat Step 4 as needed.
+ 
A-
Figure 20: Adjusting the transmission spring tension
IMPORTANT: INCORRECT ADJUSTMENT CAN CAUSE PREMATURE WEAR AND/OR DAMAGE TO THE WHEEL DRIVE COMPONENTS.
12 | www.snapper.com |
