The Bolens HT20 is a garden tractor model from the Large Frame series, manufactured from 1973 to 1978 by Bolens in Port Washington, Wisconsin, USA. It was available in two-wheel drive (2WD) version.
The Bolens HT-20 is equipped with a 880 cc (53.7 cu·in) two-cylinder gasoline engine with 85.7 mm (3.37 in) of the cylinder bore and 76.2 mm (3.00 in) of the piston stroke, and a shaft-driven hydrostatic transmission with infinite forward and reverse gears.
The Bolens HT20 garden tractor features:
The Kohler K532 gasoline engine which produces 19.7 PS (14.5 kW; 19.5 HP) at 3,450 rpm of horsepower Manual steering Disc brakes Open operator station Sleeve hitch (optional) Front PTO with mechanical clutch and 2000 rpm General specifications General Specifications Model Bolens HT20 Tractor type garden tractor Production years 1973-1978 Factory Port Washington, Wisconsin, USA Dimensions and weight Length 1,900 mm (74.8 in) Width Max: 1,190 mm (46.9 in) Min: 960 mm (37.8 in) Height 1,140 mm (44.9 in) Wheel base 1,320 mm (52 in) Ground clearance 210 mm (8.3 in) Weight 494 kg (1,089 lbs) Fuel capacity Fuel tank capacity 18.9 liters (5.0 US gal.; 4.2 Imp. gal)
Engine Engine Specifications Engine model Kohler K532 Engine type 4-stroke, L-head (side valve), single-cylinder Displacement 880 cm3 , (53.7 cu·in) Bore and stroke 85.7 mm X 76.2 mm (3.37 in X 3.00 in) Max. horsepower 19.7 PS (14.5 kW; 19.5 HP) at 3,450 rpm Cooling system Forced air Lubricating system Splash type Fuel system Carburetor Starting system Electirc starter Valve clearance Intake valve clearance: 0.20-0.25 mm (0.0079-0.0098 in) Exhaust valve clearance: 0.43-0.48 mm (0.0169-0.0189 in) Oil system Lubrication system: Splash type Oil type: API SF or SG Recommended oil: Summer: SAE 30W Winter: SAE 5W-20, 5W-30 Oil capacity: 3.8 L (4 US. qt, 3.3 Imp. qt.) Ignition system Spark plug: Champion RH10Spark plug gap: 0.65 mm (0.0256 in) Spark plug torque: 27 N·m (2.8 kg·m, 19.9 ft·lb)
Transmission and chassis Chassis, steering and brakes Chassis 4×2 2WD Steering type Manual Brakes Disc Transmission Transmission manufacturer or model Sundstrand 15 Transmission type Shaft-driven hydrostatic Gears Infinite forward and reverse Speed Forward: 12.9 kmh (8 mph) Reverse: 6.4 kmh (4 mph) Transmission oil capacity 9.5 L (2.5 US. gal, 2.1 Imp. gal.)
Tires Tires Front tires Ag : 18-8.50×8 Rear tires Ag : 26-12.00×12
Rear Hitch Three-Point Hitch Category Sleeve hitch (optional) Control type – Lift capacity (at ends) –
PTO (Power take-off shaft) PTO Front PTO type with mechanical clutch Front PTO speed 2000 rpm
Electrical system Electrical system Ground Negative Charging system Alternator Charging amps 15A Battery 12V, 45Ah
Attachments Bolens 54″ mid-mount mower deck Cutting width 1,370 mm (54 in) Bolens 54″ front-mount blade Cutting width 1,370 mm (54 in) Bolens 42″ front-mount single-stage snow blower Width 1,060 mm (42 in) Bolens 46″ front-mount two-stage snow blower Width 1,160 mm (46 in) Johnson 14: 48″ loader Width 1,210 mm (48 in) Brantly C backhoe
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