Belt Maintenance; Servicing The Alternator Belt; Hydraulic System Maintenance; Changing The Hydraulic Fluid - Toro 30864 Operator's Manual

Belt Maintenance

Servicing the Alternator Belt

Service Interval: After the first 10 hours
Every 100 hours
Check the condition and tension of the belt (Figure 41) after
every 100 operating hours.
1. Proper tension will allow 10 mm (3/8 inch) deflection
when a force of 44 N (10 lb) is applied on the belt
midway between the pulleys.
2. If the deflection is not 10 mm (3/8 inch), loosen the
alternator mounting bolts (Figure 41). Increase or
decrease the alternator belt tension and tighten the
bolts. Check the deflection of the belt again to ensure
that the tension is correct.
g020537
Figure 41
1. Mounting bolt
1
2
2. Alternator
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 42).
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 45 liters (12
U.S. gallons) of hydraulic fluid; refer to Checking the
Hydraulic Fluid.
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.
35
Figure 42