Groundmaster 328-D
Engine
Kubota® liquid-cooled diesel, 3-cylinder, 28 hp (20.9 kW) gross, 26 hp (19.5 kW) net at governed speed of 3250 rpm. 68.5 cu. in. (1123
cm3) displacement. Pressurized lubrication system with 4.0 quart (3.8 liter) capacity. Heavy duty remote-mounted 5" (12.7 cm)
Donaldson® air cleaner. Fuel filter/water separator with visible bowl. Electric fuel pump.
Radiator
Mid-mount industrial radiator with tube and fin construction; 7 fins per inch. Approx. 6 quart (5.7 liter) capacity. Stamped top and bottom
tanks with hydraulic cooler in lower tank. Thermally stable water cooled hydrostatic system regulates operating temperature, (adjusts
seasonally).
Fuel Capacity
6.5 gallons (24.6 liters), No. 1 or 2 diesel fuel.
Controls
Hand-operated throttle, PTO, hydraulics implement lift and foot-operated traction pedal.
Traction Drive
Variable speed, axial piston, hydrostatic in-line transmission; charge circuit hydraulics with 25 micron filtration provide hydraulic flow for
power and implement lift. Transmission mates to drive axle; 20.9-1 reduction, approx. 5 quart (4.7 liter) oil lubricant capacity. Single
foot pedal control of forward/reverse ground speed. Optional Electronic Cruise Control Kit, Model 30677, available.
Model 30627: Rear axle is mechanically driven from front axle by a universal shaft. An on-demand, bi-directional overrunning clutch
prevents rear tire scuffing in turns and maintains turning radius. Approx. 3.1 quart (3.5 liter) gear lubricant capacity.
Gauges and Diagnostics
Hour meter, fuel gauge, coolant temperature gauge, 4-light warning cluster gauge: oil pressure, water temperature, amps and glow
plug. High water temperature shut-down/override switch.
Electrical Features
Maintenance free 12 volt battery, 630 amp, cold cranking performance at 0°F (-18°C). Dash mounted ignition switch,
40 amp alternator, 40 amp manual reset circuit breaker. Seat, PTO, parking brake and traction interlock switches.
Weight
2WD: Approx. 1,250 lbs. (567 kg) dry weight.
4WD: Approx. 1,665 lbs. (755 kg) dry weight; w/ ROPS
4WD: Approx. 1,665 lbs. (755 kg) dry weight; w/ ROPS
Implement Drive and Lift
11/8" (2.9 cm) splined PTO shaft driven by a tight-slack double “A” section, torque team V-belt. An anti-side load system protects the
crankshaft output bearings. Lift cylinder 2.5" x 3.25" (6.4 cm x 8.3 cm) actuates a T-bar of 2" (5 cm) square structural tubing with
convenient attaching chains for implement lift. Two large torsion springs counterbalance implements for greater stability and traction.
Steering
Hydraulic power steering with control valve and metering section which regulates pressure and meters flow to steering cylinder.
Steering valve features priority flow which automatically goes to steering function. 13" (33 cm) diameter steering wheel. Tilt steering
wheel with a 15° range of movement releases and locks by a single lever control.
Brakes
Individual 7" x 1.75" (17.8 x 4.4 cm) drum type wheel brakes. Parking brakes on front traction wheels. Dynamic braking through traction
drive.
Seat
Optional: High back cushion seat, or deluxe adjustable suspension set.
Ground Speed
0-9.5 mph (0-15.3 km/h), infinitely variable.
Tires/ Wheels/ Pressure
Two front traction drive tires - 23 x 8.50-12 tubeless, extra traction tread, 4-ply rating. Demountable drop center rims. Two rear steering
tires - Models 30789/30627: 16 x 6.5-8, tubeless, ribbed type, 4-ply rating. Model 30627: 18 x 6.5-8, tubeless, extra traction tread,
4-ply rating. Tire pressures: 21 psi (145 kPa). Optional extra wide tire and rim: 23 x 10.50-12 tubeless, 4-ply rating, Part No. 62-7020;
or 23 x 10.50-12 tubeless, 6-ply rating, Part No. 69-9870 (not applicable when using cutting unit model 30710).
Main Frame
Welded construction steel reinforced with square and rectangular tubing.
Storage
Toolbox with latch down cover located in fender. Operator manual storage tube furnished for attachment to seat frame.
Ground Clearance
Front ground clearance of 7.5" (19 cm), rear ground clearance of 4.5" (11 cm).
Certification
Groundsmaster 300 Series prime movers and rotary cutting units are certified to meet the American National Standard Institute’s
(ANSI) specifications, B71.4-1999 and applicable Federal and State regulations based thereon.
Warranty
Two year limited warranty. Refer to the Operator’s Manual for further details.
Cutting Units
Type
72" (183 cm) width of cut, three blade, mounted rotary.
Side or rear discharge respectively.
or
72" (183 cm) width of cut, three blade, mounted rotary. Recycled with no discharge
Mowing Rate
Mows up to 4.0 acres/h (1.6 hectares/h) at 5.5 mph (8.9 km/h).
Blades
Three 25" (64 cm) long, .25" (6 mm) thick, heat-treated steel,
suction-lift blades.
Deck Covers
Quick-release covers. No tools required to remove.