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Belt Maintenance
Tensioning the Alternator Belt
Service Interval: After the first 8 hours
Every 100 hours
1. Open the hood.
2. Check the tension of the alternator belt by depressing
it
(Figure
74) midway between the alternator and the
crankshaft pulleys with 10 kg (22 lb) of force.
Figure 74
1. Brace
2. Alternator belt
The belt should deflect 11 mm (7/16 inch). If the
deflection is incorrect, proceed to step 3. If correct,
continue operation.
3. Loosen the bolt securing the brace to the engine
(Figure
74), the bolt securing the alternator to the brace
and the pivot bolt.
4. Insert a pry bar between the alternator and the engine
and pry out on the alternator.
5. When you achieve the proper tension, tighten the
alternator, brace, and pivot bolts to secure the
adjustment.
3. Pivot bolt
Hydraulic System
Maintenance
Changing the Hydraulic Fluid
Service Interval: Every 800 hours
Every 2 years—Drain and flush the hydraulic tank.
If fluid becomes contaminated, contact your Toro Distributor
because the system must be flushed. Contaminated fluid
looks milky or black when compared to clean oil.
1. Stop the engine and raise the hood.
2. Place a large drain pan under the fitting secured to the
bottom of the hydraulic-fluid reservoir
g027137
1. Hose
3. Disconnect the hose from the bottom of the fitting and
let the hydraulic fluid flow into the drain pan.
4. Install the hose when hydraulic fluid stops draining.
5. Fill the reservoir with approximately 41.6 L (11 US
gallons) of hydraulic fluid; refer to
Hydraulic Fluid (page
Important: Use only hydraulic fluids specified.
Other fluids could damage the system.
6. Install the reservoir cap.
7. Start the engine and use all of the hydraulic controls to
distribute hydraulic fluid throughout the system. Also,
check for leaks.
8. Stop the engine.
9. Check the level of the hydraulic fluid and add enough
to raise level to the F
Important: Do not overfill.
50
(Figure
1
Figure 75
Checking the
29).
mark on the dipstick.
ULL
75).
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