Toro Groundsmaster 328-D, Service Manual

Page: 98 / 402

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Specifications
Item Description Standard
Transmission Sauer-Sundstrand 15 Series In-line
Operating Pressure 500 to 5200 PSI
Charge pressure 70 - 150 PSI
Implement relief pressure 700 to 900 PSI
Forward traction relief pressure (4WD only) 5200 PSI
Oil filter 25 micron rated, screw-on type
Hydraulic oil (Fig. 1) Extreme (over 90
°
F) SAE 30 SF/CC or CD
Normal (40 - 100
°
F) SAE 10W30 or 10W40 SF/CC or CD
Cool - Spring/Fall (30 - 50
°
F) SAE 5W30 SF/CC or CD
Winter (Below 30
°
F) Type “F” or “FA” ATF
Automatic Transmission Fluid
Hydraulic resevoir Front axle differential housing 5 U.S. qt. (4.7 liter) approx. capacity
Lift control valve Four-way, three position,
open center
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.
DO NOT OVER-
FILL
by more than 1/2 inch (13 mm) above groove.
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.
Figure 1
1. Dipstick cap 2. Groove
Specifications Page 5 - 2 Groundsmaster
®
300 Series