Target Audience:
Farm owners, mechanics, and restoration enthusiasts seeking comprehensive repair information for vintage Allis-Chalmers tractors.
Value Proposition:
Provides essential, detailed repair knowledge in a convenient digital format, enabling cost-effective maintenance and restoration.
Format Advantage:
PDF format allows for easy search, bookmarking, and printing of specific sections, unlike traditional, bulky paper manuals.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures.
Transmission Repair:
Detailed instructions for servicing and repairing manual transmissions, including gearsets, shafts, and shifting mechanisms.
Hydraulic System:
Covers the Power Director, hydraulics, and PTO (Power Take-Off) systems, including pump, valve, and cylinder repairs.
Electrical System:
Wiring diagrams, troubleshooting for lighting, starting, charging, and ignition systems.
Cooling System:
Radiator, water pump, thermostat, and fan maintenance and repair.
Fuel System:
Carburetor adjustment, fuel pump service, and fuel line maintenance.
Brake System:
Service and adjustment of mechanical braking systems.
Steering System:
Repair and adjustment of the steering mechanism.
Front Axle And Steering:
Detailed procedures for front axle and steering linkage repairs.
Rear Axle And Final Drive:
Service for rear axle assemblies and final drive units.
Chassis And Frame:
Frame inspection and repair, component mounting.
Body And Sheet Metal:
Information on body panel alignment and minor repairs.
Routine Maintenance:
Scheduled maintenance tasks, lubrication points, and filter changes.
Troubleshooting Guides:
Diagnostic charts and procedures for identifying and resolving common problems.
Engine Repair And Rebuild:
Comprehensive steps for engine overhauls, including valve grinding, piston ring replacement, and bearing adjustments.
Transmission Overhaul:
Detailed rebuild procedures for the transmission, including clutch pack replacement and gear synchronization.
Hydraulic System Repair:
Procedures for pump, cylinder, and valve body service, including seal replacement.
Electrical Troubleshooting:
Step-by-step diagnostics for electrical faults using wiring diagrams.
Brake Adjustment And Service:
Instructions for proper brake adjustment and component replacement.
Pto Service:
Maintenance and repair of the power take-off unit.
Diagnostic Capability:
Advanced diagnostic procedures and specifications for accurate fault finding.
Rebuild Procedures:
Complete engine and transmission rebuild instructions with detailed diagrams and torque specifications.
Specification Data:
Includes critical technical data such as clearances, tolerances, torque values, and fluid capacities.
Engine Type:
Gasoline and Diesel variants (depending on specific D-14/D-15 model and configuration).
D15 Engine Diesel:
Allis-Chalmers 251 cu. in. Diesel (4-cylinder)
D15 Engine Gas:
Allis-Chalmers 201 cu. in. Gas (4-cylinder)
D14 Engine Gas:
Allis-Chalmers 163 cu. in. Gas (4-cylinder)
D14 Gas Hp:
Approx. 36 engine horsepower
D15 Gas Hp:
Approx. 44 engine horsepower
D15 Diesel Hp:
Approx. 45 PTO horsepower
Carburetor D14:
Marvel-Schebler (specific model varies)
Carburetor D15:
Marvel-Schebler or Zenith (specific model varies)
Fuel Type:
Gasoline or Diesel (model dependent)
Transmission Type:
Constant Mesh Manual Transmission
Gears:
Typically 6 forward gears and 1 reverse gear.
Power Director:
Optional Power Director (a two-speed transmission or splitter) available on some models, providing 12 forward and 3 reverse gears.
Clutch:
Single dry plate clutch.
Transmission Fluid:
Manual Transmission Lubricant (e.g., API GL-4, SAE 80W-90 recommended, consult manual for exact specifications).
Engine Oil Change:
Every 60 hours of operation or annually (refer to manual for specific engine type and conditions).
Oil Filter Change:
With every oil change.
Transmission Fluid Change:
Typically every 1200 hours of operation or as per manual recommendations.
Engine Oil Grade:
SAE 30 or 10W-30 (depending on climate and engine type, consult manual).
Hydraulic Fluid:
Allis-Chalmers Type 2 or equivalent (e.g., Hy-Gard, ISO VG 46).
Coolant:
Ethylene glycol-based antifreeze/coolant with corrosion inhibitors.
Hydraulic Leaks:
Common wear in hydraulic cylinders, pumps, and seals over time, requiring seal replacement.
Carburetor Issues:
Fuel gumming, worn jets, and float level adjustments on gasoline models.
Electrical Component Wear:
Deterioration of wiring insulation, points, and condensers in the ignition system.
Transmission Synchronization:
Wear in the transmission can lead to difficulty in gear engagement or popping out of gear.
Manufacturer:
Allis-Chalmers Manufacturing Company, a significant American manufacturer of agricultural machinery, construction equipment, and industrial products.
D-14 Introduction:
Introduced in 1957 as a utility tractor.
D-15 Introduction:
Introduced in 1959, succeeding and expanding upon the D-14's capabilities with a more powerful engine and updated features.
D-15 Series Ii:
The Series II designation typically indicates mid-production updates and refinements to the D-15 model.
Production Period:
D-14: circa 1957-1960. D-15: circa 1959-1966 (including Series II).
