Target User:
Owners, mechanics, restoration enthusiasts requiring detailed service information.
Value Proposition:
Provides comprehensive technical data for effective maintenance and repair, crucial for extending the life of a classic tractor.
Document Type:
Service Manual, Repair Manual, Workshop Manual (WSM).
Scope:
In-depth, professional quality, detailed.
Engine:
Complete overhaul, diagnostics, tune-up procedures, cooling system, lubrication system, fuel system, ignition system (for gasoline models), injection system (for diesel models).
Transmission:
All gearbox components, clutch service, PTO (Power Take-Off) operation and repair, differential service, final drive maintenance.
Hydraulics:
Hydraulic pump, control valves, lift arms, cylinders, hydraulic fluid specifications and maintenance, troubleshooting hydraulic issues.
Electrical System:
Wiring diagrams, starter, generator/alternator, battery service, lighting system, instrument panel functions, troubleshooting electrical faults.
Chassis And Frame:
Frame inspection and repair, front axle and steering system service, rear axle maintenance, braking system overhaul, wheel and tire specifications.
User Interface:
Control levers, pedals, dashboard layout, operator's station features.
Maintenance:
Regular servicing, lubrication points and intervals, filter replacement, fluid checks and changes.
Troubleshooting:
Systematic diagnostic procedures for common problems, symptom-based troubleshooting charts.
Repair:
Step-by-step disassembly and reassembly instructions for all major components and systems.
Adjustments:
Carburetor adjustment, ignition timing, clutch pedal free play, brake adjustments, hydraulic control adjustments.
Special Tools:
Identification and usage of specific tools required for certain procedures.
Coverage Level:
In-depth, comprehensive professional quality service and repair.
Detail Level:
Detailed diagrams, exploded views, torque specifications, tolerances, and component data.
File Format Expected:
PDF (Digital Download)
Searchable Text:
Likely, assuming a well-scanned document.
Physical Attributes If Printed
Print Quality:
Professional print quality (for physical reproduction).
Binding Type:
Likely Spiral-bound or Perfect-bound for usability.
Paper Type:
Durable, matte finish paper suitable for workshop environments.
Engine Manufacturer:
Allis-Chalmers
Engine Model Gasoline:
Type 1 (e.g., 200 ci, 4-cylinder, gasoline)
Engine Manufacturer:
Allis-Chalmers
Engine Model Diesel:
Type 2 (e.g., 200 ci, 4-cylinder, diesel)
Horsepower Gasoline:
Approx. 44 PTO HP (Varies by specific engine option and model year)
Torque Gasoline:
Varies by engine configuration.
Horsepower Diesel:
Approx. 40 PTO HP (Varies by specific engine option and model year)
Torque Diesel:
Varies by engine configuration.
Fuel Type:
Gasoline or Diesel (depending on variant)
Carburetor Gasoline:
Specific make and model of carburetor (e.g., Marvel-Schebler) with adjustment procedures detailed.
Injection System Diesel:
Specific make and model of injection pump and injectors (e.g., Roosa-Master) with timing and servicing procedures.
Cooling Type:
Water-cooled (radiator, thermostat, water pump).
Oil Type:
Refer to manual for specific viscosity grades (e.g., SAE 30 or 10W-30) based on temperature. Includes engine oil, transmission oil, hydraulic oil.
Transmission Type:
Constant Mesh, 5-speed manual transmission (plus reverse).
Transmission Options:
Varied PTO options (e.g., 540/1000 RPM PTO) available.
Clutch:
Single dry plate, 11-inch clutch with adjustment and replacement procedures.
Gear Selection:
Main shift lever and range selector.
Differential Lock:
Foot-operated differential lock mechanism.
Wheelbase:
Approx. 78 inches (1981 mm)
Length:
Approx. 120 inches (3048 mm) (without implements)
Width:
Approx. 68 inches (1727 mm) (at rear wheels)
Shipping Weight:
Approx. 3800 lbs (1724 kg)
Operating Weight:
Varies with configuration and ballast, typically around 4000-4500 lbs.
Front Tire Size:
Commonly 6.00-16 or 7.50-16.
Rear Tire Size:
Commonly 12.4-28 or 13.6-28.
Safety Standards Era:
Designed to meet safety standards of its production era; modern ROPS/FOPS not standard equipment from factory.
Braking System:
Independent rear wheel mechanical drum brakes, parking brake function.
Differential Lock:
Engageable for improved traction.
Operator Station:
Open station with basic controls and seat.
Engine Oil Change:
Typically every 50-100 operating hours, or annually. Refer to manual for precise interval.
Transmission Oil Change:
Recommended every 500-1000 operating hours. Refer to manual for precise interval.
Hydraulic Oil Change:
Recommended every 500-1000 operating hours. Refer to manual for precise interval.
Engine Oil Viscosity:
Consult manual for SAE viscosity grade based on ambient temperature (e.g., SAE 30, 10W-30).
Hydraulic Fluid Type:
Allis-Chalmers Hydraulic Fluid or equivalent specified in manual (often ISO VG 46).
Transmission Gear Oil:
API GL-4 or GL-5 rated gear oil, SAE 90 is common. Refer to manual for exact specification.
Common Wear Points:
Clutch wear, hydraulic lift system leaks, carburetor issues (gasoline), injector pump wear (diesel), steering play.
Electrical Problems:
Wiring degradation, starter/generator issues are common in older equipment.
Cooling System Issues:
Radiator leaks, water pump seal failures, thermostat malfunctions.
Manufacturer History:
Allis-Chalmers was a major American manufacturer of agricultural, construction, and industrial machinery, known for innovation and durable equipment.
D Series Context:
The D-15 was part of Allis-Chalmers' highly successful D-series tractors, designed as a utility tractor for a wide range of farm tasks.
Production Period:
Produced from 1957 to 1962.
Key Variants:
Offered in standard, narrow front (NF), and all-purpose (AP) configurations, as well as industrial models.
