Belt Maintenance; Adjusting The Alternator Belt; Controls System Maintenance; Adjusting The Cutting Unit Lift/Drop - Toro Greensmaster 3250-D Operator's Manual

Belt Maintenance

Adjusting the Alternator
Belt
Service Interval: After the first 8 hours
Ensure that the belt is properly tensioned to ensure
proper operation of the machine and prevent
unnecessary wear.
1. Park the machine on a level surface, shut off the
engine, engage the parking brake, remove the
key, and wait for all moving parts to stop.
2. Apply moderate thumb pressure to the belt
between the pulleys (10 kg or 22 lb). The belt
should deflect 7 to 9 mm (0.28 to 0.35 inch). If
not, complete the following procedure to adjust
the belt tension:
Figure 46
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 comes with a
flow-control valve
at the factory at approximately 3 turns open, but you
may need to adjust it to compensate for differences in
hydraulic fluid temperatures, mowing speeds, etc.
Note:
Allow the hydraulic fluid 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
located on the side of the hydraulic manifold.
1. Flow-control valve
2. Loosen the jam nut on the adjusting knob on the
flow control valve.
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3. Rotate the knob counterclockwise if the center
cutting unit is dropping too late or clockwise if
the center cutting unit is dropping too early. You
should not need to rotate it more than 1/32 to
1/16 of a turn.
4. Test the adjustment and repeat step
needed; when finished, tighten the jam nut.
43
(Figure 47). This valve is preset
(Figure 47), which is
Figure 47
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