Caterpillar R5

The Caterpillar R5 is a tractor produced by Caterpillar. It is equipped with a 618 ci 10.1 L engine. Transmission: 4 forward and 1 reverse. Drive type: crawler. Operating weight: 13675 lbs 6202 kg.

Drive & Traction
crawler
Fuel & Capacities
50 gal 189.2 L
Transmission
4 forward and 1 reverse
Operating Weight
13675 lbs 6202 kg

Overview

Caterpillar R5 tractor photo
1934 - 1940 Agricultural Crawler tractor
Production
Manufacturer
Caterpillar
Agricultural Crawler tractor
Built in Peoria, Illinois, USA
The Caterpillar R5 was originally a special-order machine for the US Government. It was first based on the Thirty-Five, then the Forty. Later models were the gas counterpart to the RD6.
Caterpillar R5 Engine
Caterpillar 10.1L 4-cyl gasoline
Fuel tank
50 gal 189.2 L
Engine details ...
Caterpillar R5 Transmission
4-speed gear
Transmission details ...
Caterpillar R5 Power
Drawbar (claimed)
50 hp 37.3 kW
Belt (claimed)
58 hp 43.3 kW
Drawbar (tested)
49.44 hp 36.9 kW
Belt (tested)
58.89 hp 43.9 kW
Performance test details ...
Mechanical
Drive
crawler
Open operator station.
Dimensions & Tracks
Weight
13675 lbs 6202 kg
16-inch tracks
Full dimensions and tracks ...
Belt Pulley
Diameter
12 inches 30 cm
Width
8.5 inches 21 cm
RPM
950
References
R5 references literature
50 Drawbar Horsepower Tractor published in 1934, by Caterpillar

Engine

Engine Detail — 618 ci / 10.1 L Gasoline

Manufacturer
Caterpillar
Fuel Type
Gasoline
Configuration
4-cylinder, liquid-cooled
Displacement
618 ci 10.1 L
Bore/Stroke
5.50x6.50 inches 140 x 165 mm
Rated RPM
950
Oil capacity
14 qts 13.2 L
Coolant capacity
37 qts 35.0 L

Transmission

Transmission — 4 forward and 1 reverse gear

Type
gear
Gears
4 forward and 1 reverse
Clutch
dry disc
Oil capacity
20 qts 18.9 L
R5  gear speeds

Dimensions

Caterpillar R5 Tracks
Width
16 inches 40 cm
Length on ground
71.4 inches 181 cm
Area on ground
2284 in² 1.5 m²
Dimensions
Length
139.4 inches 354 cm
Width
72.5 inches 184 cm
Height
69.3 inches 176 cm
Weight
13675 lbs 6202 kg
Ground clearance
9.75 inches 24 cm
Gauge
56 inches 142 cm

Tests

Nebraska Tractor Test 224
Gasoline 4-speed crawler July 12 - 20, 1934 Link: Nebraska Tractor Test 224 file
Belt power (max)
58.89 hp 43.9 kW
Drawbar performance
Max power
49.44 hp 36.9 kW
Gear 2 used for power test.
Max pull
10834 lbs 4914 kg
Gear 1 used for pull test.

Photos

Caterpillar R5

Caterpillar R5

Caterpillar R5

Caterpillar R5

Caterpillar R5

Caterpillar R5

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Caterpillar R5.

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

Caterpillar R5 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Caterpillar R5.

Converted Equivalents:

Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS