Changing The Hydraulic Fluid And Filters - Toro 31598 Operator's Manual

Figure 89
1. Yellow plunger 2. Red zone
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 (Figure 90) from the bottom
of the tank and let the hydraulic fluid flow into the
pan. Install the drain plug when the hydraulic fluid
stops draining.
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 (Figure 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.
60
Figure 90
3. Hydraulic tank drain plug