Belt Maintenance; Adjusting The Alternator Belt; Controls System Maintenance; Adjusting The Cutting Unit Lift/Drop - Toro 04384 Operator's Manual

Belt Maintenance

Adjusting the Alternator Belt

Service Interval: After the first 8 hours
Make sure the belt is properly tensioned to ensure proper
operation of the machine and prevent unnecessary wear.
1. Stop the engine, set the parking brake, and remove the
ignition key.
2. Apply moderate thumb pressure to the belt between
the pulleys (10 kgf (22 lb)). The belt should deflect 7
to 9 mm (0.28 to 0.35 inches). If not, complete the
following procedure to adjust the belt tension:
3
1
2
Figure 47
1. Alternator belt—apply pressure here
2. Alternator
3. Adjusting strap
A. Loosen the bolts securing the alternator to the
engine and adjusting strap.
B. Inspect the belt for wear or damage and replace if
it is worn.
C. Using a lever placed between the alternator and
the engine block, pull the alternator out to obtain
the correct belt tension and tighten the bolts.
Controls System
Maintenance
Adjusting the Cutting Unit
Lift/Drop
The cutting unit lift/drop circuit is equipped with a flow
control valve (Figure 48). This valve is preset at the factory
but an adjustment may be required to compensate for
differences in hydraulic oil temperatures, mowing speeds,
attachments, etc. If an adjustment is required, proceed as
follows:
Note: Allow the hydraulic oil to reach full operating
temperature before adjusting the flow control valve.
1. Raise the seat and locate the flow control valve for the
center pull frame (Figure 48) which is located on the
side of the hydraulic manifold.
2. Loosen the jam nut on the flow control valve.
3. Rotate the knob 1/16 turn counterclockwise if the
center cutting unit is dropping too late or 1/16 turn
clockwise if the center cutting unit is dropping too early.
4. After the desired setting has been achieved, tighten the
jam nut.
g014755
1. Flow control valve

Backlapping the Reels

WARNING
Contact with the reels or other moving parts can
result in personal injury.
• Keep fingers, hands, and clothing away from the
reels or other moving parts.
• Never attempt to turn the reels by hand or foot
while the engine is running.
40
Figure 48