Model Series:
D06 Series (D2506, D5206, D5506, D6206)
Model Variants:
D2506, D5206, D5506, D6206
Production Years:
Approximately 1967 to 1978 (exact range varies by model)
Vehicle Type:
Agricultural tractor
Manual Type:
Workshop Service Manual / Repair Manual
Format:
PDF (digital download)
Delivery:
Instant download after purchase
Binding:
Digital - no physical binding
Target Audience:
Deutz tractor owners, farm mechanics, independent repair shops, and DIY enthusiasts
Competitive Advantage:
Comprehensive factory-style procedures for multiple D06 series models in one manual
Multiple Models Covered:
D2506, D5206, D5506, D6206
Detailed Procedures:
Step-by-step disassembly, repair, and reassembly instructions
Technical Specifications:
Torque values, clearances, and adjustment data
Illustrations:
Diagrams and exploded views (where included in original manual)
Searchable PDF:
Digital format allows quick keyword search
Coverage Areas:
Engine, transmission, hydraulics, electrical, steering, brakes, and chassis
Manual Type:
Workshop Service Manual / Repair Manual
Page Count:
N/A - not specified for this digital edition
Delivery Method:
Instant digital download
Compatibility:
Viewable on Windows, Mac, tablets, and smartphones with PDF reader
Printing:
Printable for workshop use
Searchable:
Yes, text searchable (if OCR applied)
Engine:
Deutz air-cooled diesel engines - overhaul, adjustment, and repair
Fuel System:
Injection pump, injectors, fuel lines, and governor
Cooling System:
Air cooling fan, ducting, and temperature control
Lubrication System:
Oil pump, filter, and oil circuit
Transmission:
Gearbox, clutch, differential, and final drives
Hydraulics:
Hydraulic pump, lift cylinder, and control valve
Electrical System:
Wiring, alternator, starter, battery, and lighting
Steering:
Manual and power steering components
Brakes:
Mechanical and hydraulic brake systems
Chassis:
Frame, axles, wheels, and tires
Cab and Body:
Sheet metal, operator platform, and cab (if equipped)
Diagnostic Procedures:
Troubleshooting charts and fault isolation
Disassembly and Assembly:
Step-by-step removal and installation
Adjustments:
Valve clearance, injection timing, clutch, and brake adjustments
Testing:
Pressure tests, electrical tests, and component inspection
Torque Specifications:
Critical fastener torque values
Level of Detail:
Factory-level technical information suitable for professional mechanics
Illustrations:
Exploded views, cross-sections, and wiring diagrams (as included)
Specifications:
Clearances, wear limits, and capacities
Part Diagrams:
Component breakdown illustrations with part references (where included)
Part Numbers:
Deutz OEM part numbers listed for many components
Ordering Info:
Not included - contact dealer for parts availability
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
Air-cooled, inline diesel
D2506 Engine:
Deutz F2L 912, 2-cylinder, 2.1 L (approx.)
D5206 Engine:
Deutz F3L 912, 3-cylinder, 3.1 L (approx.)
D5506 Engine:
Deutz F3L 912, 3-cylinder, 3.1 L (approx.)
D6206 Engine:
Deutz F4L 912, 4-cylinder, 4.2 L (approx.)
D2506 Power:
Approximately 24 hp (18 kW) at 2300 rpm
D5206 Power:
Approximately 48 hp (36 kW) at 2300 rpm
D5506 Power:
Approximately 52 hp (39 kW) at 2300 rpm
D6206 Power:
Approximately 60 hp (45 kW) at 2300 rpm
Torque:
N/A - varies by model and engine tuning
Injection System:
Mechanical direct injection
Injection Pump:
Bosch or Deutz licensed pump
Governor:
Mechanical centrifugal governor
Air Filter:
Oil-bath or dry element (varies)
Gears:
8 forward, 4 reverse (typical for D06 series)
Clutch:
Single-plate dry clutch
Optional Variants:
Some models offered additional gear ranges or creeper gears
Note:
Availability varies by model and market
Differential Lock:
Mechanical or pedal-operated (if equipped)
Final Drive:
Planetary or spur gear final reduction
PTO:
Independent or transmission-driven, 540 rpm (and 1000 rpm on some models)
Wheelbase (D2506):
Approx. 1800 mm (70.9 in)
Wheelbase (D5206):
Approx. 2000 mm (78.7 in)
Wheelbase (D5506):
Approx. 2000 mm (78.7 in)
Wheelbase (D6206):
Approx. 2100 mm (82.7 in)
Length (D2506):
Approx. 3200 mm (126 in)
Length (D5206):
Approx. 3500 mm (137.8 in)
Length (D5506):
Approx. 3500 mm (137.8 in)
Length (D6206):
Approx. 3700 mm (145.7 in)
Width:
Varies with tire configuration, typically 1600-1800 mm (63-71 in)
Height:
Varies with cab/roll bar, typically 2200-2400 mm (86.6-94.5 in)
Curb Weight (D2506):
Approx. 1400 kg (3086 lbs)
Curb Weight (D5206):
Approx. 1900 kg (4189 lbs)
Curb Weight (D5506):
Approx. 1950 kg (4299 lbs)
Curb Weight (D6206):
Approx. 2100 kg (4630 lbs)
Ratings / Crash Test Information
Crash Test Rating:
N/A - agricultural tractors not subject to passenger car crash testing
Rollover Protection:
Optional roll bar or cab (ROPS) available on later models
Brakes:
Mechanical drum or disc brakes on rear wheels, independent left/right control
Steering:
Manual or hydrostatic power steering (model dependent)
Lighting:
Work lights, headlights, and turn signals (where equipped)
Operator Presence:
Seat safety switch (on some models)
Guards:
PTO master shield and engine guards
Warning Devices:
Horn and backup alarm (if equipped)
Audio System:
N/A - not factory-equipped on most D06 series tractors
Assistance Systems:
N/A - no electronic driver assistance systems on this era
Instrumentation:
Analog gauges for engine speed, temperature, fuel level, and oil pressure
Electrical:
12-volt system with alternator and starter (later models)
Engine Oil:
Change every 100-150 hours (severe duty) or 200 hours (normal)
Oil Filter:
Replace with every oil change
Fuel Filter:
Replace every 200-300 hours or as needed
Air Filter:
Clean every 50 hours, replace as required
Valve Clearance:
Check/adjust every 500 hours
Transmission/Hydraulic Oil:
Change every 1000 hours or annually
Engine Oil:
SAE 15W-40 or 10W-30 API CF/CD (depending on climate)
Transmission/Hydraulic Oil:
SAE 80W-90 gear oil or UTTO fluid (per Deutz spec)
Coolant:
N/A - air-cooled engine
Fuel:
Diesel, cetane 45 minimum
Grease:
Lithium-based multi-purpose grease for fittings
Known Issues / Common Wear Items
Engine:
Cylinder head cracks, valve seat wear, injection pump wear
Transmission:
Synchronizer wear, bearing noise, seal leaks
Hydraulics:
Pump wear, lift cylinder seal leaks
Electrical:
Wiring degradation, alternator failure
Brakes:
Brake shoe wear, master cylinder leaks
Steering:
Steering box play, power steering leaks
Manufacturer:
Deutz AG (later Deutz-Fahr)
Country of Origin:
Germany
Predecessor:
Deutz D series (e.g., D25, D40)
Successor:
Deutz-Fahr DX series and later models
Introduction:
D06 series introduced in the late 1960s
Discontinuation:
Phased out in the late 1970s as new series launched
Main Plant:
Cologne, Germany (Deutz main factory)
Other Locations:
Some models assembled or licensed in other countries