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CaseIH 685

The CaseIH 685 is a tractor produced by Caseih. It is equipped with a 238.8 ci 3.9 L engine. The listed engine power is Diesel (listed): 73 hp / 54.4 kW. Transmission: 16 forward and 8 reverse. Operating weight: 5660 lbs 2567 kg.

Engine Power
Diesel (listed): 73 hp / 54.4 kW
Fuel & Capacities
20 gal 75.7 L
Transmission
16 forward and 8 reverse
Operating Weight
5660 lbs 2567 kg

Overview

CaseIH 685 tractor photo
1985 - 1990 85 Utility SeriesUtility tractor 85 Utility Series Utility tractor
Production
Manufacturer
CaseIH
Utility tractor
Built in Doncaster, England
Original price was $22,300 in 1990
Variants
685
utility
685-O
orchard
CaseIH 685 Engine
CaseIH 3.9L 4-cyl diesel
Engine details ...
CaseIH 685 Power
Engine
73 hp 54.4 kW
Drawbar (claimed)
54 hp 40.3 kW
PTO (claimed)
61 hp 45.5 kW
Drawbar (tested)
52.90 hp 39.4 kW
PTO (tested)
61.02 hp 45.5 kW
Performance test details ...
Mechanical
Two- or four-wheel drive
Power steering
Differential hydraulic wet disc brakes
Two-post ROPS. Cab optional.
Capacity
Fuel
20 gal 75.7 L
Hydraulic system
9 gal 34.1 L
Hydraulics
Type
open center
Capacity
9 gal 34.1 L
Pressure
2500 psi 172.4 bar
Valves
1 or 2
Pump flow
15.8 gpm 59.8 lpm
18.6 gpmOptOptional 70.4 lpm
Tractor hitch
Rear Type
II/I
Rear lift (at 24"/610mm)
3260 lbs 1478 kg
Power Take-off (PTO)
Rear PTO
independent
Rear PTO Type
540/1000
Dimensions & Tires
Wheelbase
84.5 inches 214 cm
Weight
5660 lbs 2567 kg
Front tire
7.50-16
Rear tire
16.9-30
Full dimensions and tires ...
Electrical
Charging system
alternator
Charging amps
45
References
685 references literature
85 Series published in 1985, by CaseIH

Engine

Engine Detail — 238.8 ci / 3.9 L Diesel

Manufacturer
CaseIH D-239
Fuel Type
Diesel
Configuration
4-cylinder, liquid-cooled
Displacement
238.8 ci 3.9 L
Bore/Stroke
3.875x5.06 inches 98 x 129 mm
Power
73 hp 54.4 kW
Air cleaner
dual paper elements
Compression
16:1
Rated RPM
2400
Starter volts
12

Transmission

Transmission options
8-speed gear
16-speed two-speed power shift

Transmission — 8 forward and 4 reverse gear

Type
gear
Gears
8 forward and 4 reverse
Clutch
dry disc

Transmission — 16 forward and 8 reverse two-speed power shift

Type
two-speed power shift
Gears
16 forward and 8 reverse
Clutch
dry disc
685 two-speed power shift speeds

Dimensions

CaseIH 685 Tires
Ag front
7.50-16
Ag rear
16.9-30
Dimensions
Wheelbase
84.5 inches 214 cm
Length
141.6 inches 359 cm
2WD Height
93.5 inches 237 cm
4WD Height
96.5 inches 245 cm
CaseIH 685 Weight
2WD Operating
5660 lbs 2567 kg
Ballasted
8845 lbs 4012 kg
Max capacity
10150 lbs 4604 kg

Tests

Nebraska Tractor Test 1604
Diesel 16-speed 2WD October 7 - 14, 1986 Link: Nebraska Tractor Test 1604 file
PTO performance
Power at rated engine speed
61.02 hp 45.5 kW
Fuel use
4.2 gal/hour 15.9 l/hour
Power at rated PTO speed
58.80 hp 43.8 kW
Fuel use
4.0 gal/hour 15.1 l/hour
Drawbar performance
Max power
52.90 hp 39.4 kW
Fuel use
4.2 gal/hour 15.9 l/hour
Gear 1HDD used for power test.
Max pull
7207 lbs 3269 kg
Gear 2LDD used for pull test.

Photos

Case IH 685, right side.

Case IH 685, right side.

Left side of the Case IH 685 with model 2250 front-end loader.

Left side of the Case IH 685 with model 2250 front-end loader.

Recommended Implements & Sizing Guide

Engineering recommendations for Caseih 685 based on its 73 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
3 to 4 Bottom (16")3 - 4 铧 (40 cm)Heavy DutySuitable for medium loam and stubble turnover.
Rotary Cutter / MowerMowing & Clearing
7 to 8 ft (84-96 in)2.1 - 2.4 mHeavy DutyHeavy-duty twin spindle cutter for overgrown acreage.
Rotary TillerSeedbed Prep
78 to 84 in200 - 215 cmHeavy DutyHeavy commercial tiller with multi-speed gearbox.
Disc HarrowSecondary Tillage
7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙Medium DutyField leveling and clod breaking behind plows.
Hay BalerHay & Forage
4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机Heavy DutySilage and dry hay; 540 RPM PTO with slip-clutch.
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Caseih 685.

Estimated Continuous Field Runtime: 5.3 hrs

Approximately 5.3 hours of continuous field operation at ~75% rated power on a full tank (20 gal / 75.7 L).

Estimated 75% Load Fuel Burn~3.8 gal/hr (14.4 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

Caseih 685 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Caseih 685.

Converted Equivalents:

Horsepower (HP)73 hp
Kilowatts (kW)54.4 kW
Metric Horsepower (PS / CV)74 PS

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