Servicing The Hydraulic System - Toro 30581 Groundsmaster 580-D Operator's Manual

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Cleaning the Filter
1. Washing Method:
A. Prepare a solution of filter cleaner and water and
soak filter element about 15 minutes. Refer to
directions on filter cleaner carton for complete
information.
B. After soaking filter for 15 minutes, rinse it with
clear water. Maximum water pressure must not
exceed 40 psi to prevent damage to the filter
element. Rinse filter from clean side to dirty to side.
C. Dry filter element using warm, flowing air (160 F
max), or allow element to air-dry. Do not use a light
bulb to dry the filter element because damage could
result.
2. Compressed air method:
A. Blow compressed air from inside to the outside of
dry filter element. Do not exceed 100 psi to prevent
damage to the element.
B. Keep air hose nozzle at least 2 in. from filter and
move nozzle up and down while rotating the filter
element. Inspect for holes and tears by looking
through the filter toward a bright light.
Installing the Filter
1. Inspect new filter for shipping damage. Check sealing
end of filter. Do not install a damaged filter.
2. Insert new filter properly into air cleaner body. Make
sure filter is sealed properly by applying pressure to
outer rim of filter when installing. Do not press on
flexible center of filter.
3. Install cover and secure latches.

Servicing the Hydraulic System

The machines reservoir is filled at the factory with
approximately 40 gallons of high quality hydraulic fluid.
Check the level of hydraulic fluid before the engine is
first started and daily thereafter. Appropriate hydraulic
oils are listed below.
The following list is not assumed to be all–inclusive.
Hydraulic fluids produced by other manufacturers may be
used if they cross find a cross reference equivalent to the
products listed. Toro will not assume responsibility for
damage caused by improper substitutions, so use only
products from reputable manufacturers who will stand
behind their recommendation.
Multigrade Hydraulic Fluid – ISO VG 68
Mobil
Amoco
Chevron
Conoco
Exxon
Pennzoil
Shell
Texaco
Note: Many hydraulic fluids are almost colorless, making it
difficult to spot leaks. A red dye additive for the hydraulic
system oil is available in 2/3 oz. (20 ml) bottles. One bottle
is sufficient for 4–6 gal (15–22 1) of hydraulic oil. Order
part no. 44–2500 from your authorized Toro distributor.
Not recommended for biodegradable fluid (use food
coloring).
Checking the Oil Level
1. Visually check hydraulic oil level daily through sight
glass (Fig. 46). With machine on a level surface, oil
should be in the middle of the sight glass when warm
and slightly below level when cold.
2. If oil needs to be added, clean area thoroughly around
the fill cap before removing cap (Fig. 46). Add oil until
proper level is indicated in sight glass.
1. Hydraulic oil level sight
glass
41
DTE 26
Rykon AW No. 68
Hydraulic Oil AW ISO 68
Hydroclear AW 68
Nuto H 68
AW Hydraulic Oil 68
Tellus 68
Rando HDZ 68
Figure 46
2. Reservoir fill cap

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