8
SPECIFICATIONS
TRACTION UNIT
Engine:
Mitsubishi, Model S4S-DT 4 cycle, four
cylinder, over-head valve, 203.3 cu. in. (3331 cc)
displacement, water cooled diesel. Rated 80 hp @
2750 rpm. 17:1 compression ratio, direct injected and
turbo-charged. Crankcase capacity: 10.6 qt (10 l)
w/filter.
Air Cleaner:
Heavy duty, centrifugal air type
w/replaceable element.
Cooling System:
Radiator w/wide-spaced fins
(5 per in.). Variable speed fan controlled by engine
temperature. Full flow hydraulic oil cooler (7 fins/in.).
Coolant capacity 3.9 gal (14.7 l) of 50/50 mixture of
ethylene glycol and water.
Fuel System:
Fuel tank capacity: 28 gal (106 l) of No. 2
diesel fuel.
Electrical
: 12 volt automotive type system. Dual
maintenance free batteries w/1300 Amp cold cranking
power at 0
F (18
C). 50 Amp alternator with integral
regulator.
Controls:
Individual deck lift levers, High Range/Low
Range ground speed selector, PTO and ignition
switches. Hand throttle, ON/OFF cruise control switch
and cruise engage button. Single implement shut-off,
steering tower and wheel tilt lever and service brake
pedal. Foot operated traction pedal and steering brake
pedals with parking brake latch.
Warning Systems:
Indicator lights and audible signals
warn of:
Low engine oil pressure.
High water temperature.
No charge.
Water in fuel.
Low hydraulic oil level.
High hydraulic oil temperature.
Air cleaner clogged.
Hydraulic oil filter needs service.
Indicator lights alone indicate:
Parking brake on.
Cruise control is engaged.
Groundsmaster 580-D is in High Range ground
speed mode.
Interlock System
: Prevents engine starting if traction
pedal is out of neutral. Stops engine if operator either
leaves seat or parking brake on with traction pedal out
of neutral. Prevents PTO engagement if operator is out
of seat, engine is off, or all cutting units are raised.
Prevents engagement of High Range ground speed
mode if a cutting unit is lowered, front cutting unit is not
fully raised or if engine is shut off.
Steering:
15-1/2 in. (39 cm) patented tilt steering
wheel and tower, released and locked by single control
lever. Dual hydraulic cylinder power steering for extra
sharp turning.
Seat and Storage:
Deluxe seat w/armrests, backrest
and suspension. Adjustable fore and aft travel, weight
and height. Tool storage tray under hinged floor plate;
storage and beverage holder alongside control panel.
Brakes:
Enclosed, multiple front hydraulic disc brakes
operated by right foot pedal. Mechanical steering
brakes via two pedals which lock together for parking
brake function. Dynamic braking through closed-loop
hydrostatic drive.
Tires/Wheels
:
Front - two 31 x 12.50-15, 8-ply high floatation
turf tires w/tubes.
Rear - two 23 x 10.50-12, 6 ply tubeless turf tire.
Ground Speed:
Infinitely variable.
Forward Speeds - Low; 0-7.5 mph (12.1 km/h).
High; 0-20 mph (32.2 km/h).
Reverse Speeds - Low; 0-3 mph (4.8 km/h).
High; 0-8 mph (12.9 km/h).
Ground Clearance:
8 in. (20.3 cm).
Hydraulic Oil System and Reservoir:
40 gal (151 l)
total system capacity. Reservoir capacity: 32 gal
(121 l). Replaceable spin-on 5 micron filter element.
Traction System:
Hydrostatic closed loop system
driving gear reduction wheel drives. Has bypass valve
for towing. Adjustable foot pedal with speed stop
controls forward/reverse ground speed. Switch
engaged cruise control, disengaged by service brake
or ON/OFF switch. Cruise speed changeable without
disengagement.
Machine Fluid Recommendations:
Engine Oil:
API Service Classification CD (see Before
Operating or Lubrication section for oil grade
recommendations).
Diesel Fuel:
ASTM No. 2-D
Cooling System:
50/50 mix; Water & Ethylene Glycol
Hydraulic Oil (Recommended brands):
Mobil
15 M
Mobil
DTE 26
Shell
Tellus 68
Amoco
Rykon Oil #68
Conoco
Super Hydraulic Oil 68
Exxon
Nuto H 68
Kendall
Kenoil R & O AW 68
Pennzoil
Penreco 68
Phillips
Magnus A 68
Standard
Energol HLP 68
Sun
Sunvis 831 WR
Union
Unax AW 68
Note: All are interchangeable.
IMPORTANT:
Use only hydraulic oils specified.
Other fluids could cause system damage.
Note:
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 (15-23 l) of hydraulic oil. Order
Part No. 44-2500 from your Authorized Toro
Distributor.
