Target User:
Owners, mechanics, service technicians specializing in Allis-Chalmers tractors
Value Proposition:
Provides essential, detailed information for accurate and efficient repair, reducing reliance on expensive dealer services
Ease Of Use:
Organized with a table of contents for quick access to specific repair sections
Comprehensiveness:
Covers all aspects of repair and maintenance, from basic to advanced diagnostics
Cost Savings:
Enables DIY repairs, saving significant money on labor costs
Knowledge Acquisition:
Develops in-depth understanding of the tractor's systems and operation
Platform Compatibility:
Compatible with Windows and Mac operating systems
Software Requirements:
Adobe PDF Reader and WinZip (for extraction if zipped)
Engine:
Detailed repair, overhaul, and troubleshooting for the specific Allis-Chalmers diesel engine
Fuel System:
Components such as injection pump, injectors, filters, and fuel lines
Cooling System:
Radiator, thermostat, water pump, hoses, and fan
Lubrication System:
Oil pump, filters, passages, and oil change procedures
Transmission:
Gearbox, clutch, PTO, differential, and related components
Hydraulics:
Hydraulic pump, reservoir, control valves, cylinders, and lift systems
Electrical System:
Starting and charging systems, lighting, ignition (if applicable), and wiring diagrams
Brake System:
Mechanical or hydraulic brake components and service procedures
Steering System:
Mechanical or power steering components
Frontend And Rear Axles:
Service and overhaul procedures
Operator Station:
Seat, controls, instrumentation, and safety features
Sheetmetal And Bodywork:
Body panel removal, repair, and replacement
Routine Maintenance:
Oil changes, filter replacements, lubrication points, and inspection checks
Troubleshooting:
Diagnosis of common problems and systematic problem-solving guides
Repair Procedures:
Step-by-step instructions for component disassembly, repair, and reassembly
Overhaul Procedures:
Complete engine, transmission, and hydraulic system rebuilds
Adjustment Procedures:
Valve adjustments, clutch adjustments, brake adjustments, etc.
Specifications And Tolerances:
All critical measurements, torques, and clearances for proper assembly
Wiring Diagrams:
Detailed electrical schematics for troubleshooting and repair
Depth:
Comprehensive factory-level repair, diagnostics, and overhaul information
Digital Format:
PDF (Portable Document Format)
Searchability:
Typically text-searchable PDF, allowing quick information retrieval
Digital Quality:
High-resolution scans or original digital files, suitable for printing
Digital Access:
Downloadable, accessible on multiple devices (PC, tablet, smartphone)
N A:
N/A (Digital Format)
Engine Type:
Allis-Chalmers 3-cylinder Diesel (likely ADT300 or similar)
Displacement:
Approximately 169.6 cubic inches (2.78 liters)
Bore X Stroke:
Typically around 3.75 x 4.125 inches
Horsepower Rating:
Rated PTO horsepower approximately 56-60 HP (engine horsepower slightly higher)
Torque Rating:
Estimated 130-140 lb-ft at governed RPM
Injection System:
Direct injection, typically with Roosa Master or similar rotary injection pump
Governed Rpm:
Approximately 2200-2400 RPM
Transmission Type:
Constant mesh, 8-speed forward, 2-speed reverse (often with a Hi-Lo range selector, totaling 16 forward speeds)
Clutch Type:
Two-stage dry clutch (for transmission and PTO)
Pto Type:
Independent 540/1000 RPM PTO
Differential Lock:
Yes, rear differential lock
Wheelbase:
Approximately 82.5 inches
Length:
Approximately 125-130 inches (without implements)
Width At Rear Axle:
Adjustable, typically 60-72 inches
Operating Weight:
Approximately 5,000-5,500 lbs (without ballast)
Drawbar Horsepower:
Approximately 45-50 HP
Rollover Protection:
ROPS (Roll Over Protective Structure) may have been optional or dealer-installed; structural integrity is key
Brake System:
Rear wheel, internal expanding shoe or disc brakes, dependent on specific configuration
Operator Station Design:
Designed for operator comfort and control, with hand levers and foot pedals
Engine Oil Change:
Typically every 100-250 operating hours, depending on operating conditions
Fuel Filter Replacement:
As needed, or every 250-500 hours
Hydraulic Fluid Change:
Typically annually or every 500 hours
Air Filter Maintenance:
Check and clean frequently, replace as needed
Engine Oil Type:
API CD or CE rated diesel engine oil, SAE 15W-40 recommended for most conditions
Hydraulic Fluid Type:
Allis-Chalmers Type 1825 (or equivalent ISO VG 46 or UTF - Universal Tractor Transmission Oil)
Transmission Oil Type:
Allis-Chalmers Type 1825 (or equivalent UTF)
Coolant Type:
Ethylene glycol-based antifreeze, 50/50 mix with distilled water
Common Wear Items:
Clutch wear, hydraulic pump performance, potential for injector pump issues, front axle kingpin wear
Electrical Reliability:
Older wiring harnesses can degrade, leading to starting or charging issues; generator/alternator brushes may need replacement
Manufacturer:
Allis-Chalmers Manufacturing Company, a major American manufacturer of agricultural and industrial equipment
Production Period:
Produced in the late 1960s to mid-1970s
Segment:
Mid-size utility tractor, popular for a wide range of farming and property maintenance tasks
Manufacturing Location:
Likely manufactured in the United States by Allis-Chalmers