Belt Maintenance; Tensioning The Alternator Belt; Hydraulic System Maintenance; Changing The Hydraulic Fluid - Toro 03660 Operator's Manual

Belt Maintenance

Check the condition and tension of the alternator belt
after the first day of operation and every 100 operating
hours thereafter.

Tensioning the Alternator Belt

1. Open the hood.
2. Check the tension of the alternator belt by depressing
it (Figure 76) midway between the alternator and the
crankshaft pulleys with 22 lb (10 kg) of force.
Figure 76
1. Brace
2. Alternator belt
The belt should deflect 7/16 inch (11 mm). If the
deflection is incorrect, proceed to step 3. If correct,
continue operation.
3. Loosen the bolt securing the brace to the engine
(Figure 76), 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

Change hydraulic fluid after every 800 operating hours,
in normal conditions. If fluid becomes contaminated,
contact your local 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
(Figure 77).
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 8 U.S. gallons
(30 l) of hydraulic fluid; refer to Checking the
Hydraulic Fluid in , page .
Important: Use only hydraulic fluids specified.
Other fluids could cause system damage.
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 Full mark on the dipstick.
Important: Do not over-fill.
51
Figure 77