Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere GX85/SX85 Tractor Specs

John Deere GX85 Engine Specifications

Engine Make - Briggs and Stratton
Engine Model - 28M707
Cylinders - one
Engine Bore - 87 mm (3.44 in.)
Engine Stroke - 78 mm (3.06 in.)
Cycle - Four
Fuel - Gasoline
Spark Plug Gap - 0.762 mm (0.030 in.)
Spark Plug Torque - 25 Nm (18 lb-ft)
Air cleaner - Dry element
Starter - Electric
Starter volts - 12
Crankcase Dry Capacity - 1.4 L (1.5 qt.)
Fuel Capacity - 4.8 L (1.24 gal.)

John Deere GX-85 Transmission

Description - Peerless 915 Series Transaxle
Transmission Type - Five-Speed/Linear Shift
Forward / Reverse Speeds - 5 forward and 1 reverse

JD GX85 Optional Transmission

Description - Peerless 910 Series
Transmission Type - Foot Controlled Variable Speed

Travel Speeds

First Gear - 1.8 km/h (1.1 mph)
Second Gear - 3.5 km/h (2.2 mph)
Third Gear - 5.3 km/h (3.3 mph)
Fourth Gear - 6.8 km/h (4.2 mph)
Fifth Gear - 8.0 km/h (5.0 mph)
Reverse - Gear 3.1 km/h (1.9 mph)

John Deere GX85/SX85 Tractor PTO (Power take off)

Mid PTO - Independent
Clutch - Mechanical

Wheels and Steering

Drive Wheels - 2WD
Steering - Manual
Turning Radius - 356 mm (14 in.)

Brakes

Brake Type - Disk

Mower Deck

Mower Type - Side Discharge
Cutting Blade - 1
Blade Bolt Torque - 68 - 79 Nm (50 - 58 lb-ft)
Cutting Width - 76.2 cm (30 in.)
Cutting Height (approximate) - 25 to 102 mm (1 to 4 in.)
Height Adjustment - 7 positions
Ground Clearance - 95 mm (3.74 in.)

John Deere GX-85 Dimensions

Overall Height - 101 cm (39.76 in.)
Overall Width - 79 cm (31.1 in.)
Overall Length - 157 cm (62 in.)
Weight (approximate) - 153 kg (340 lbs.)

Tire Size

Front Tire Size - 11x4.00-5
Rear Tire Size - 16x6.50-8
Inflation Front - 100 kPa (14 psi)
Inflation Rear - 70 kPa (10 psi)

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