1989 - 1991
| 1989 - 1991 |
| Front-mount mower |
Series:
| Series: | Pro Master 18-H ← | Pro Master 20-H | → Pro Master 30-H |
1989 - 1991
| 1989 - 1991 |
| Front-mount mower |
Series:
| Series: | Pro Master 18-H | → Pro Master 20-H |
Production
| Production |
| Manufacturer | Gravely (a part of Ariens) |
| Type | Front-mount mower |
Gravely Pro Master 18-H Engine
| Gravely Pro Master 18-H Engine |
| 18HP Kohler 691cc 2-cyl gasoline |
| Fuel tank | 5.3 gal
20.1 L |
| Engine details ... |
Gravely Pro Master 18-H Transmission
| Gravely Pro Master 18-H Transmission |
| hydrostatic |
| Transmission details ... |
Mechanical
| Mechanical |
| Chassis | 4x2 2WD |
| Brakes | disc |
| Cab | Open operator station. |
Power Take-off (PTO)
| Power Take-off (PTO) |
| Front PTO | independent |
| Clutch | electric |
Dimensions & Tires
| Dimensions & Tires |
| Weight | 980 lbs
444 kg |
| Front tire | 18x8.50-8 |
| Rear tire | 4.80/4.00-8 |
| Full dimensions and tires ... |
Electrical
| Electrical |
| Ground | negative |
| Charging amps | 15 |
| Battery volts | 12 |
Production
| Production |
| Manufacturer | Gravely (a part of Ariens) |
| Type | Front-mount mower |
Gravely Pro Master 20-H Engines
| Gravely Pro Master 20-H Engines |
| 20HP Kohler 770cc 2-cyl gasoline |
| 20HP Onan 781cc 2-cyl gasoline |
| Fuel tank | 5.3 gal
20.1 L |
| Engine details ... |
1989 - 1991
| 1989 - 1991 |
| Front-mount mower |
Series:
| Series: | Pro Master 18-H ← | Pro Master 20-H | → Pro Master 30-H |
Engines overview
| Engines overview |
| 20HP Kohler 770cc 2-cyl gasoline |
| 20HP Onan 781cc 2-cyl gasoline |
Engine Detail
| Engine Detail |
| Kohler M20 |
| gasoline |
| 2-cylinder |
| air-cooled horizontal-shaft horizontally-opposed |
| Displacement | 770 cc
46.98 ci |
| Bore/Stroke | 3.12x3.06 inches
79 x 78 mm |
| Power (gross) | 20 hp
14.9 kW |
| Starter | electric |
| Starter volts | 12 |
| Oil capacity | 2 qts
1.9 L |
Engine Detail
| Engine Detail |
| Onan |
| gasoline |
| 2-cylinder |
| air-cooled |
| Displacement | 781 cc
47.7 ci |
| Bore/Stroke | 3.258x2.875 inches
83 x 73 mm |
| Power | 20 hp
14.9 kW |
Gravely Pro Master 20-H Transmission
| Gravely Pro Master 20-H Transmission |
| hydrostatic |
| Transmission details ... |
1989 - 1991
| 1989 - 1991 |
| Front-mount mower |
Series:
| Series: | Pro Master 18-H ← | Pro Master 20-H | → Pro Master 30-H |
Transmission
| Transmission |
| Transmission | Eaton 850 |
| Type | hydrostatic |
| Gears | infinite forward and reverse |
| Oil capacity | 6 qts
5.7 L |
Speeds
Mechanical
| Mechanical |
| Chassis | 4x2 2WD |
| Brakes | disc |
| Cab | Open operator station. |
Power Take-off (PTO)
| Power Take-off (PTO) |
| Front PTO | independent |
| Clutch | electric |
Dimensions & Tires
| Dimensions & Tires |
| Weight | 980 lbs
444 kg |
| Front tire | 18x8.50-8 |
| Rear tire | 4.80/4.00-8 |
| Full dimensions and tires ... |
1989 - 1991
| 1989 - 1991 |
| Front-mount mower |
Series:
| Series: | Pro Master 18-H ← | Pro Master 20-H | → Pro Master 30-H |
Gravely Pro Master 20-H Tires
| Gravely Pro Master 20-H Tires |
| Lawn/turf front | 18x8.50-8 |
| Lawn/turf rear | 4.80/4.00-8 |
Electrical
| Electrical |
| Ground | negative |
| Charging amps | 15 (Kohler) |
| | 20 (Onan) |
| Battery volts | 12 |
