Toro 03431 Operator's Manual page 18

Figure 12
1. Counterbalance arm
2. Top bolt
3. Bottom bolt
Figure 13
1. Rear counterbalance
spring
2. Vinyl cover
3. Insert the breaker bar into the square hole in the
counterbalance arm and pivot the arm back to its
original position, aligning the mounting holes.
4. Secure the bottom of the counterbalance arm to the
frame with the bolt and nut previously removed.
Tighten the top bolt (Figure 12).
5. To tension the counterbalance springs, proceed as
follows:
A. Remove the cotter pin and clevis pin securing the
spring shackle to the counterbalance arm. Do
not remove the other clevis pin.
B. Move the shackle up or down on the
counterbalance arm until it is aligned with the
desired hole on the arm. Install the clevis pin
and cotter pin.
4. Spring shackle
5. Clevis pin and cotter pin
3. Spring shackle
Installing the Counterbalance Springs
on 32 Inch Cutting Units
1. Mount a spring anchor to the rear inboard side of
each front cutting unit lift tab with 2 bolts (1/4 x 3/4
inch) and locknuts, as shown in Figure 14.
1. Cutting unit lift tab
2. On the front cutting units, hook the spring into the
second hole from the bottom (#3 position) in the
spring anchor (Figure 14).
Note: Selecting the #4 hole position (increasing
the spring tension) will reduce the weight on the
inboard end of the cutting unit, increase the weight
on the outboard end of the cutting unit, and increase
traction. Selecting the #2 hole position has the
opposite affect.
3. On the rear cutting unit, hook the spring into the top
hole on the rear cutting unit lift tab.
Note: Increasing the spring tension will reduce
the weight on the inboard end of the cutting unit,
increase the weight on the outboard end of the
cutting unit, and increase traction. Decreasing the
spring tension has the opposite affect.
4. Secure the other end of the spring to the appropriate
hole (see below) on the front and rear counterbalance
arms (Figure 15 and Figure 16) with the spring
shackle with the chain, clevis, clevis pin, and cotter
pin.
• 5 blade reels—third hole from the top
• 8 blade reels—second hole from the top
• Reels with baskets—top hole
Note: On rear counterbalance spring, install the
vinyl cover over the spring before installing.
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G009862
Figure 14
2. Spring anchor