Changing The Hydraulic Fluid And Filters; Checking The Hydraulic Lines And Hoses - Toro 31598 Operator's Manual

Figure 89
1. Safe operating range
5. If the level is low, add the appropriate fluid to raise the
level to the upper mark.
6. Install the dipstick and cap onto the filler neck.
7. Close the cover.
Changing the Hydraulic Fluid
and Filters
Service Interval: Every 1,000 hours—Change the hydraulic
fluid and filters.
Change the 2 hydraulic filters and the hydraulic fluid after
every 1000 operating hours, in normal operating conditions.
If the 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.
Use Toro replacement filters (Part No. 86–6110 for the left
side of the machine and 75-1310 for the right side of the
machine).
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 ignition key.
2. Place a large drain pan under the hydraulic fluid tank.
3. Remove the drain plug
the tank and let the hydraulic fluid flow into the pan.
Install the drain plug when the hydraulic fluid stops
draining.
(Figure 90) from the bottom of
1. Hydraulic filter
2. Hydraulic filter
4. Clean the area around the filter mounting areas. Place a
drain pan under the filter and remove the filter
90).
5. Lubricate the new filter gasket and fill the filter with
hydraulic fluid.
6. Ensure that the filter mounting area is clean. Screw
the filters on until the gaskets contacts the mounting
plates; then tighten the filter an additional 1/2 turn.
7. Fill the reservoir with hydraulic fluid; refer to Checking
the Hydraulic Fluid.
Important: Use only the hydraulic fluids
specified. Other fluids could cause system
damage.
8. Install the reservoir cap. Start the engine and use all
of the hydraulic controls to distribute hydraulic fluid
throughout the system. Also check for leaks; then stop
the engine.
9. Check the fluid level and add enough to raise level the
level to the Full mark on the dipstick. Do not overfill.
Checking the Hydraulic Lines
and Hoses
Service Interval: Every 2 years—Replace moving hoses.
Inspect the hydraulic lines and hoses daily for leaks, kinked
lines, loose mounting supports, wear, loose fittings, weather
deterioration, and chemical deterioration. Make all necessary
repairs before operating.
57
Figure 90
3. Hydraulic tank drain plug
(Figure