Target Audience:
Farmers and agricultural contractors needing a versatile medium-horsepower tractor
Competitive Advantage:
Higher power and hydraulic capacity than its predecessor, combined with Allis Chalmers' proven reliability and ease of maintenance
Engine:
Four-cylinder gasoline or diesel option
Transmission:
10-speed (with high and low ranges)
Hydraulics:
High capacity hydraulic system with built-in draft control
PTO:
Independent rear PTO
Coverage:
Complete workshop service procedures for Allis Chalmers Model D-19 tractors
Page Count:
Over 200 pages of detailed instructions and diagrams
Manual Type:
Workshop Service Manual (repair and maintenance)
Format:
PDF (digital download)
Delivery Method:
Instant download after purchase
Engine:
Overhaul, fuel system, cooling system, lubrication, and troubleshooting
Clutch:
Inspection, adjustment, and replacement
Transmission:
Disassembly, gear ratios, and repair
Differential and Final Drive:
Service and adjustment
Power Take-Off (PTO):
Operation and repair of independent PTO
Hydraulic System:
Pump, valves, cylinder, and draft control
Steering and Brakes:
Inspection, adjustment, and overhaul
Electrical System:
Wiring diagrams, battery, starter, generator/alternator
Maintenance:
Scheduled service, tune-ups, and adjustments
Repair:
Step-by-step instructions for major assemblies
Overhaul:
Engine and transmission rebuild
Diagnosis:
Troubleshooting charts and fault isolation
Special Tools:
Lists of required special service tools
Level of Detail:
Factory-level specifications and tolerances
Illustrations:
Detailed diagrams and cutaway views
Part Numbers:
Original OEM part numbers for replacement items
Compatibility:
All modern devices with PDF reader
Requirements:
No special software required
Searchability:
Text-searchable throughout
Print Quality:
High-resolution images and text for clear reproduction
Binding Type:
Digital (PDF) - no physical binding
Paper Type:
N/A - digital product
Base Engine:
Allis Chalmers 4-cylinder gasoline (displacement 226 cu in / 3.7 L)
Optional Engine:
Allis Chalmers 4-cylinder diesel (same displacement)
Power (gasoline):
Approximately 40 horsepower at drawbar
Power (diesel):
Approximately 40 horsepower at drawbar
Carburetor (gasoline):
Single downdraft type
Injection (diesel):
Bosch or CAV distributor-type pump
Type:
Manual sliding-gear (10 forward / 2 reverse)
Speeds:
10 forward speeds in two ranges (low/high)
None:
No optional transmission offered for this model
Clutch:
Two-stage dry disc clutch (transmission and PTO independent)
Differential Lock:
Optional manual differential lock
Safety Ratings:
N/A - tractor not crash-tested; rollover protection was not standard in production era
Brakes:
Independent mechanical rear brakes (assist steering)
Lighting:
Standard headlights and taillights for visibility
Seat Belt:
Not standard in original production
Rollover Protection:
Optional roll bar/cab retrofits common
Engine Oil Change:
Every 100 hours or seasonally
Transmission/Hydraulic Oil:
Every 500 hours
Air Filter Service:
Clean or replace as needed
Engine Oil:
SAE 30 (above 40°F) or SAE 10W-30 (below 40°F)
Hydraulic/Transmission Oil:
Allis Chalmers Type 303 or equivalent
Coolant:
50/50 mixture of ethylene glycol and water
Known Issues / Common Wear Items
Hydraulic Pump Seals:
Prone to leakage and wear
Electrical Wiring:
Aging insulation, corrosion common
Front End Components:
Tie rod ends and steering gear wear
