Caterpillar RD7
The Caterpillar RD7 is a tractor produced by Caterpillar. It is equipped with a 831 ci 13.6 L engine. Transmission: 4 forward and 1 reverse. Drive type: crawler. Operating weight: 21020 lbs 9534 kg.
Drive & Traction
crawler
Fuel & Capacities
Diesel
Transmission
4 forward and 1 reverse
Operating Weight
21020 lbs
9534 kg
Overview
 | 1935 - 1940
Agricultural Crawler tractor |
|---|
Production | |
|---|---|
Manufacturer | Caterpillar |
Agricultural Crawler tractor | |
Built in Peoria, Illinois, USA | |
Caterpillar RD7 Engine | |
|---|---|
Caterpillar 13.6L 4-cyl diesel | |
Engine details ...  |
Caterpillar RD7 Transmission | |
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4-speed gear | |
Transmission details ...  |
Caterpillar RD7 Power | |
|---|---|
Drawbar (tested) | 78.35 hp
58.4 kW |
Belt (tested) | 95.97 hp
71.6 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Open operator station. | |
Dimensions & Tracks | |
|---|---|
Weight | 21020 lbs
9534 kg |
Tracks | |
Full dimensions and tracks ...  | |
Engine
Engine Detail — 831 ci / 13.6 L Diesel
Manufacturer | Caterpillar |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 831 ci
13.6 L |
Bore/Stroke | 5.75x8.00 inches
146 x 203 mm |
Air cleaner | oil bath |
Rated RPM | 1000 |
Transmission
Transmission — 4 forward and 1 reverse gear
Type | gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
Caterpillar RD7 Tracks |
|---|
Dimensions | |
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Operating weight | 21020 lbs
9534 kg |
Gauge | 60 inches
152 cm |
Gauge | 74 inches
187 cm |
Tests
Tractor Tests | |
|---|---|
NTTL 253: diesel 4-speed crawler | |
NTTL 254: diesel 4-speed crawler | |
NTTL 255: diesel 4-speed crawler |
Nebraska Tractor Test 253 | |
|---|---|
Diesel 4-speed crawler
May 5 - 15, 1936 | |
Belt power (max) | 68.24 hp
50.9 kW |
Drawbar performance | |
Max pull | 14746 lbs
6688 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 254 | |
|---|---|
Diesel 4-speed crawler
May 21 - 25, 1936
Link: Nebraska Tractor Test 254 file | |
Belt power (max) | 77.47 hp
57.8 kW |
Belt fuel use (max) | 5.3 gal/hour
20.1 l/hour |
Drawbar performance | |
Max power | 65.73 hp
49.0 kW |
Gear 2 used for power test. | |
Max pull | 16098 lbs
7302 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 255 | |
|---|---|
Diesel 4-speed crawler
May 21 - 25, 1936
Link: Nebraska Tractor Test 255 file | |
Belt power (max) | 95.97 hp
71.6 kW |
Belt fuel use (max) | 9.0 gal/hour
34.1 l/hour |
Drawbar performance | |
Max power | 78.35 hp
58.4 kW |
Gear 2 used for power test. | |
Max pull | 16782 lbs
7612 kg |
Gear 1 used for pull test. | |
Photos
Caterpillar RD7 crawler tractor.
Caterpillar RD7 crawler tractor.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Caterpillar RD7.
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 RD7 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Caterpillar RD7.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
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