Specifications; Hydraulic Oil - Toro Groundsmaster 300 Series Service Manual

Specifications

Item
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Transmission
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Oil filter
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Hydraulic oil (Fig. 1)
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Hydraulic resevoir
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Lift control valve

Hydraulic Oil

The hydraulic system is designed to operate on any
high-quality detergent oil having the American
Petroleum Institute (API) service classification SF/CC
or CD. Oil viscosity (weight) must be selected according
to anticipated ambient temperature. (See Hydraulic oil
specifications in above chart).
IMPORTANT: DO NOT mix engine oil and automatic
transmission fluid or hydraulic system component
damage may result. When changing fluids, also
change transmission filter. DO NOT USE DEX-
RON II ATF.
NOTE: Fluid to operate the power steering is supplied
by the hydraulic system transmission charge pump.
Cold weather start-up may result in "stiff" operation of
the steering until the hydraulic system has warmed up.
Using proper weight hydraulic oil in system minimizes
this condition.
To check oil level:
1. Put machine on a level surface, raise the implement
and stop the engine.
2. Unscrew dipstick cap from filler neck and wipe it with
a clean rag. Screw dipstick cap finger tight onto filler
neck. Unscrew dipstick and check level of oil. If level is
not within 1/2 inch (13 mm) from groove in dipstick, add
enough oil to raise level to groove mark.
by more than 1/2 inch (13 mm) above groove.
FILL
Specifications
Description
Sauer-Sundstrand 15 Series In-line
Operating Pressure
Charge pressure
Implement relief pressure
Forward traction relief pressure (4WD only)
25 micron rated, screw-on type
Extreme (over 90°F)
Normal (40 - 100°F)
Cool - Spring/Fall (30 - 50°F)
Winter (Below 30°F)
Front axle differential housing
Four-way, three position,
open center
IMPORTANT: When adding oil to hydraulic system,
use a funnel with a fine wire screen (200 mesh).
Make sure funnel and oil are very clean to prevent
accidental contamination of hydraulic system.
3. Screw dipstick filler cap finger-tight onto filler neck. It
is not necessary to tighten cap with a wrench.
4. Lower the implement.
DO NOT OVER-
Page 5 - 2
SAE 10W30 or 10W40 SF/CC or CD
SAE 5W30 SF/CC or CD
Automatic Transmission Fluid
5 U.S. qt. (4.7 liter) approx. capacity
Figure 1
1. Dipstick cap 2. Groove
Groundsmaster
Standard
500 to 5200 PSI
70 - 150 PSI
700 to 900 PSI
5200 PSI
SAE 30 SF/CC or CD
Type "F" or "FA" ATF
®
300 Series