Pre-Operating Checks; Adjust Lift Arms - Toro 30821 Operator's Manual

Pre-Operation Checks
Adjusting The Lift Arms
1. Start the engine, raise the decks and check to
make sure the clearance between each lift arm
and the floor plate bracket is 0.46–0.81cm
(Fig. 1). If clearance is not in this range, back
off the stop bolts (Fig. 3) and adjust the
cylinder to attain clearance. To adjust the
cylinder, back off the jam nut on the cylinder
(Fig. 2), remove the pin from the rod end and
rotate the clevis. Install the pin and check
clearance. Repeat the procedure if needed.
Tighten the clevis jam nut.
1
Figure 1
1. Lift arm
2. Floor plate bracket
3. Clearance (Decks removed for clarity)
2. Check to make sure clearance between each lift
arm and stop bolt is 0.13–1.02mm (0.005"–
0.040") (Fig. 3). If clearance is not in this
range, adjust the stop bolts to attain clearance.
3. Start the engine, raise the decks and check to
make sure clearance between the wear strap on
top of the rear cutting unit wear bar and the
bumper strap is 0.51–2.54mm (.020"–0.10")
(Fig. 4). If clearance is not in this range, adjust
the rear cylinder to attain clearance. To adjust
the cylinder, lower the cutting units and back
off the jam nut on the cylinder (Fig. 5). Grasp
the cylinder rod close to the nut with a pliers
and cloth and turn the rod. Raise the cutting
units and check clearance. Repeat the
procedure if necessary. Tighten the clevis jam
nut.
1. Front cylinder
2. Jam nut
2
3
1. Stop bolt
2. Lift arm
3. Clearance
1. Wear bar
2. Bumper strap
1. Rear cylinder
2. Adjusting nut
IMPORTANT: Lack of clearance at the front
stops or the rear wear bar could damage the lift
arms.
– 10 –
2
Figure 2
1
Figure 3
1
Figure 4
2
1
Figure 5
1
3
2
2