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Home / Lawn and Garden Tractors / John Deere Lawn Tractors / John Deere 112

John Deere 112 Maintenance

The John Deere 112 is a garden tractor from 100-series. This model was manufactured between 1966 and 1974.

The JD 112 driveline consists of a 4x1 Peerless 2300 gear transmission with variable pulley drive and one of three engine models: a 23.7 cu.in (388 cc) Tecumseh HH100 1-cylinder horizontal-shaft air-cooled gasoline engine with a max power of 10 hp (7.5 kW), a 23.9 cu.in (391 cc) Kohler K241S 1-cylinder air-cooled gasoline engine with a max power of 10 hp (7.5 kW), or 29.1 cu.in (476 cc) Kohler K301S 1-cylinder air-cooled gasoline engine with a rated power of 12 hp (9 kW).

Max. forward speed - 7.1 mph (11.4 km/h), maximum reverse speed - 3.1 mph (5 km/h). The tractor was equipped with 16x6.50-8 front tires and 8.00x12 rear tires. The wheelbase is 44 in (1110 mm). Compatible attachments for the John Deere 112 garden tractor: 38", 46" mid-mount 3-blade right-discharge mower decks with cutting height of 1-4" (25-101 mm), 42" front-mount blade, 42" center-mount blade with manual lifting system, 36" front-mount snow blower.

Refill Capacities
Engine oil capacity (Tecumseh), qts (L) 1.6 (1.5)
Engine oil capacity (Kohler), qts (L) 2.0 (1.9)
Transmission fluid capacity, qts (L) 1.5 (1.4)
Fuel tank capacity, gal (L) 1.9 (7.2)

Recommended Oil and Fluid
Engine oil type SAE 30, SAE 10W-30, 5W-20. API Service category MS
Transmission fluid type SAE 80W-90 Gear Oil

Service Intervals
Check fuel level Every 10 hours
Check engine oil level Every 10 hours
Clean air intake screen Every 10 hours
Lubricate wheel spindles Every 10 hours
Check tire pressure and brakes Every 25 hours
Clean air filter element Every 25 hours
Check transmission fluid Every 25 hours
Check and clean battery terminals Every 25 hours
Change engine oil Every 25 hours
Check and adjust mower drive belt Every 25 hours
Clean spark plug Every 50 hours
Sharpen or replace mower blades Every 50 hours
Clean mower deck Every 50 hours
Lubricate mower pivot points Every 50 hours
Charge battery Every 100 hours
Replace air filter element Every 100 hours
Check engine idle speeds Every 100 hours
Check carburetor adjustment Every 100 hours
Clean fuel strainer Every 200 hours
Replace spark plug Every 200 hours
Change transmission fluid Every 200 hours
Check and adjust valve clearance Every 200 hours

Replacement Parts
Engine fuel filter part number AM30069
Engine air filter part number AM31400
Spark plug part number AM514T, AP19170
Mower blade part number (38" Deck) AM30698, M41237
Mower blade part number (46" Deck) AM31100, M41967
Traction drive belt part number M82258, M44121
Mower drive belt part number M47765, M47043, M47043

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