Wheel Drive Control Adjustment - Snapper S211, SP211, SPV211, SPV211S, SPV211E Safety Instructions & Operator's Manual

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
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool.

4.2 WHEEL DRIVE CONTROL ADJUSTMENT

The wheel drive control lever should engage the trans-
mission when the lever is squeezed back against the
handlebar, and disengage the transmission when the
lever is released. See Figure 4.4.
GROUND SPEED
CONTROL
FAST
SLOW
FIGURE 4.4
If the transmission does not fully engage or disengage,
adjustment may be performed as follows:
1. Remove rear cover from mower. Refer to Section
"Rear Cover Removal & Installation".
2. With wheel drive control lever in 'DISENGAGE'
position (see Figure 4.4), spring on end of wheel drive
control cable should have no tension. Measure overall
length of unextended spring. See Figure 4.5.
TRANSMISSION
ENGAGE LEVER
(DISENGAGED)
MEASURE
UNEXTENDED SPRING
FIGURE 4.5
(Top of transmission; pulley removed for clarity)
!
WHEEL DRIVE
CONTROL
DISENGAGE
ENGAGE
SPRING HAS
NO TENSION
CABLE
3. Engage lever, and roll mower back and forth sever-
al times to ensure clutch dogs are fully engaged. With
lever engaged, measure length of extended spring.
Overall spring length should increase by 0.090 –
0.110" (3/32 – 7/64"). See Figure 4.5a.
TRANSMISSION
ENGAGE LEVER
(ENGAGED)
EXTENDED SPRING - SHOULD BE LENGTH OF UNEXTENDED
SPRING PLUS 0.090 to 0.110 (3/32 to 7/64") EXTENSION
4. To adjust spring extension:
a. Disengage lever.
b. To increase extended spring length, loosen jam nut,
and rotate ferrule below adjustment turnbuckle, locat-
ed on lower end of wheel drive control cable, ½ turn
out from turnbuckle. Tighten jam nut. See Figure
4.5b.
c. To decrease extended spring length, loosen jam
nut, and rotate ferrule ½ turn in toward turnbuckle.
Tighten jam nut. See Figure 4.5b.
TURNBUCKLE
LOOSEN JAM NUT
ROTATE FERRULE
OUT TO INCREASE
SPRING LENGTH
ROTATE FERRULE
IN TO DECREASE
SPRING LENGTH
5. Engage lever and recheck extended spring length.
Repeat step 4 as needed.
IMPORTANT: INCORRECT ADJUSTMENT CAN CAUSE
DAMAGE TO THE TRANSMISSION.
14
FIGURE 4.5a
FERRULE
FIGURE 4.5b