Toro 03540 Operator's Manual page 36

Maintenance
Figure 48
1. Injection pump lever arm
CHANGING HYDRAULIC FLUID
(Fig. 49)
CAUTION
Before servicing or making adjustments to the
machine, stop the engine and remove the key from
the switch.
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. Turn the engine off and raise the hood.
2. Remove the drain plug from the hydraulic
reservoir and let hydraulic fluid flow into a
drain pan. Reinstall and tighten plug when
hydraulic fluid stops draining.
3. Fill the reservoir with 32 l of hydraulic fluid.
Refer to Checking Hydraulic Fluid.
IMPORTANT: Use only hydraulic fluids
specified. Other fluids could cause system
damage.
4. Install the reservoir cap. Start the engine and
use all hydraulic controls to distribute hydraulic
fluid throughout the system. Also check for
leaks. Then stop the engine.
36
Figure 49
1. Hydraulic reservoir
5. Check the level of fluid and add enough to raise
the level to the FULL mark on the dipstick. DO
NOT OVER FILL.
REPLACING THE HYDRAULIC
FILTER
The hydraulic system filter head is equipped with a
service interval indicator. With the engine running,
view the indicator—it should be in the GREEN
zone. When the indicator is in the RED zone, the
filter element should be changed.
Use the Toro replacement filter (Part No. 75-1310).
IMPORTANT: Use of any other filter may void
the warranty on some components.
1. Position the machine on a level surface, lower
the cutting units, stop the engine, engage the
parking brakes and remove the key from the
ignition switch.
2. Clean the area around the filter mounting area.
Place a drain pan under the filter and remove
the filter.
3. Lubricate the new filter gasket and fill the filter
with hydraulic fluid.
4. Assure the filter mounting area is clean. Screw
the filter on until the gasket contacts the
mounting plate. Then tighten the filter one-half
turn.
5. Start the engine and let it run for about two