CaseIH Farmall 31

The CaseIH Farmall 31 is a tractor produced by Caseih. It is equipped with a 91.3 ci 1.5 L engine. The listed engine power is Diesel (gross): 31 hp / 23.1 kW. Transmission: infinite forward and reverse (3-range). Operating weight: 2,511 lbs (gear) 1138 kg.

Engine Power

Diesel (gross): 31 hp / 23.1 kW

Fuel & Capacities

7.3 gal 27.6 L

Transmission

infinite forward and reverse (3-range)

Operating Weight

2,511 lbs (gear) 1138 kg

Overview

	2008 - 2011 Farmall Compact SeriesCompact Utility tractorShibaura built Farmall Compact Series Compact Utility tractor Shibaura built

Production
Distributor	CaseIH
Manufacturer	Shibaura
Compact Utility tractor
Built in Dublin, Georgia, USA
Original price	$21,727 (2011 gear ROPS )
	$23,474 (2011 hydro ROPS )

CaseIH Farmall 31 Engine
Shibaura 1.5L 3-cyl diesel
Fuel tank	7.3 gal 27.6 L
Engine details ...

CaseIH Farmall 31 Power
Engine (gross)	31 hp 23.1 kW
PTO (claimed)	26.5 hp (gear) 19.8 kW
	24.9 hp (hydro) 18.6 kW

Mechanical
Four-wheel drive
Steering	hydrostatic power
Wet disc brakes
Two-post foldable ROPS.

Hydraulics
Type	open center
Pump flow	7.2 gpm 27.3 lpm
Total flow	12.3 gpm 46.6 lpm
Steering flow	5.1 gpm 19.3 lpm

Tractor hitch
Rear Type	I
Control	position control
Rear lift (at 24"/610mm)	1,635 lbs 741 kg

Power Take-off (PTO)
Rear PTO	live
Rear PTO Type	540
Mid PTO	optional
Mid PTO Type	2000

Dimensions & Tires
Wheelbase	63 inches 160 cm
Weight	2511 to 2544 pounds
Front tire	7x14
Rear tire	11.2x24
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	40
Battery CCA	420
Battery volts	12

Engine

Engine Detail — 91.3 ci / 1.5 L Diesel

Manufacturer	Shibaura N843
Fuel Type	Diesel
Configuration	3-cylinder, liquid-cooled
Displacement	91.3 ci 1.5 L
Power (gross)	31 hp 23.1 kW
Rated RPM	2600
Starter volts	12

Transmission

Transmission options
9-speed unsynchronized gear
hydrostatic

Transmission — 9 forward and 3 reverse unsynchronized gear

Type	unsynchronized gear
Gears	9 forward and 3 reverse

Transmission — infinite forward and reverse (3-range) hydrostatic

Type	hydrostatic
Gears	infinite forward and reverse (3-range)

Dimensions

CaseIH Farmall 31 Tires
Ag front	7x14
Ag rear	11.2x24
Lawn/turf front	24x8.50-14
	25/1050LLx15
Lawn/turf rear	13.6x16
	41/18LLx16.1
Industrial front	25x8.50-14
Industrial rear	15x19.5

Dimensions
Wheelbase	63 inches 160 cm
Length	112.4 inches 285 cm
Width	54.3 inches (min) 137 cm
Height (ROPS)	87.8 inches 223 cm
Weight	2,511 lbs (gear) 1138 kg
	2,544 lbs (hydro) 1153 kg
Front tread	45.3 inches 115 cm
Rear tread	46.6 inches 118 cm

Photos

CaseIH Farmall 31

Recommended Implements & Sizing Guide

Engineering recommendations for Caseih Farmall 31 based on its 31 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm)	Medium Duty	Standard utility farm tillage.
Rotary Cutter / MowerMowing & Clearing	5 ft (60 in)1.5 m	Medium Duty	Pasture maintenance and weeds up to 1.5" diameter.
Rotary TillerSeedbed Prep	54 to 60 in135 - 150 cm	Medium Duty	Thorough seedbed preparation in orchards and vegetable plots.
Disc HarrowSecondary Tillage	5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片)	Light Duty	Small acreage soil break-up and secondary aeration.

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 Farmall 31.

Estimated Continuous Field Runtime: 4.5 hrs

Approximately 4.5 hours of continuous field operation at ~75% rated power on a full tank (7.3 gal / 27.6 L).

Estimated 75% Load Fuel Burn~1.6 gal/hr (6.1 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