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Gravely 430

Gravely 430 tractor
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The Gravely 430 is a garden tractor produced from 1967 to 1972 as part of the 400 Series. It features a 12 hp engine option from Kohler or Onan, a 4-speed Swiftamatic transmission with shaft-driven gear, and two-wheel drive with manual steering and mechanical band brakes. The tractor has a wheelbase of 46 inches and weighs 900 lbs. It offers optional sleeve hitch and various attachments including mid-mount mower decks, snowblower, and blade. Electrical system is 12 volts with negative ground.
Gravely 430garden tractorKohler engineOnan engineSwiftamatic transmissionlawn tractormower decksnowblowerblade400 Series
Power12 hp
Founded40/50" deck
Model430

Technical Specifications

Detailed specifications and technical data for Gravely 430

Engine

Onan NB:1-cylinder, air-cooled
Fuel tank:5 gal (18.9 L)
Rated RPM:3600
Sparkplug:Champion H-10
Power Onan:12 hp (8.9 kW)
Air cleaner:single dry element
Bore/Stroke:3.25x3.37 inches (83 x 86 mm)
Kohler K301:gasoline, 1-cylinder, air-cooled horizontal-shaft
Displacement:476 cc (29.07 ci)
Oil capacity:2.5 qts (2.4 L)
Power (gross):12 hp (8.9 kW)
Sparkplug gap:0.025 inches (0.635 mm)
Starter volts:12
Engine options:12HP Kohler 476cc 1-cyl gasoline, 12HP Onan 491cc 1-cyl
Rated RPM Onan:3600
Bore/Stroke Onan:3.5625x3.00 inches (90 x 76 mm)
Displacement Onan:491 cc (30 ci)
Starter volts Onan:12
Intake valve clearance:0.009 inches Cold (0.229 mm)
Exhaust valve clearance:0.018 inches Cold (0.457 mm)

Dimensions

Width:36.25 inches (92 cm)
Height:43 inches (109 cm)
Length:75.5 inches (191 cm)
Rear tire:23-8.50x12
Wheelbase:46 inches (116 cm)
Front tire:16-6.50x6
Rear tread:28 inches (71 cm)
Front tread:30.5 inches (77 cm)
Shipping weight:900 lbs (408 kg)
Clearance (rear axle):6.375 inches (16 cm)
Clearance (front axle):10 inches (25 cm)

Electrical

Ground:negative
Battery volts:12

Production

Type:Garden tractor
Series:400 Series
Manufacturer:Gravely
Years produced:1967 - 1972

Attachments

48" Blade:front-mount, 48 inches width (121 cm), 16.5 inches height (41 cm), angling 25°, 130 lbs (58 kg), manual-lift, manual-angle
38" Snow blower:38 inches width (96 cm), two-stage, front-mount, manual-lift, 250 lbs (113 kg)
40" mid-mount mower deck:40 inches (101 cm), total width 43.4 inches (110 cm), 3-blade, manual lift, right-discharge, cut height 1.5 to 3.5 inch (3 to 8 cm), weight 148 lbs (67 kg)
50" mid-mount mower deck:50 inches (127 cm), total width 53.4 inches (135 cm), 3-blade, manual lift, right-discharge, cut height 1.5 to 3.5 inch (3 to 8 cm), weight 205 lbs (92 kg)

Transmission

Type:shaft-driven gear
Gears:4 forward and reverse
Notes:Two-speed shift-on-the-move affects transmission and PTO speed. Additional two-speed range for transmission can be shifted only when stopped. Right-hand directional clutch lever controls forward and reverse.
Clutch:friction cone
Oil type:SAE 90W-EP
Oil capacity:5 qts (4.7 L)
Transmission:Swiftamatic 8

Tractor hitch

Type:sleeve hitch Optional

Serial Numbers

Location:Ahead of rear axle on left side.

Steering and Brakes

Drive:Two-wheel drive
Brakes:Mechanical band brakes
Steering:manual
Operator station:Open operator station.

Related Models

Gravely 812

Model:812

Gravely 424

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Gravely 432

Model:432