Target Audience:
Farmers, agricultural contractors, and equipment technicians requiring a comprehensive repair and service guide for the John Deere 4755 tractor.
Market Position:
The 4755 was part of John Deere's 55 Series, positioned as a high-horsepower row-crop tractor for large-scale farming operations.
Advantage Over Competitors:
The 4755 offered a high power-to-weight ratio, advanced hydraulic capacity, and reliable mechanical design compared to similar models from competitors like Case IH and Ford.
Key Features:
Features include a 15-speed Power Shift transmission, closed-center hydraulic system with load sensing, and a sound-dampened cab with user-friendly controls.
Engine:
Complete engine repair, overhaul procedures, and troubleshooting.
Fuel System:
Fuel injection pump, injectors, and fuel tank.
Electrical System:
Wiring diagrams, alternator, starter, and battery.
Hydraulic System:
Hydraulic pump, control valves, cylinders, and lines.
Power Train:
Transmission, clutch, differential, and final drives.
Steering and Brakes:
Steering column, power steering pump, and brake assemblies.
Cab and Climate Control:
Air conditioning, heating, and cab components.
Attachments and PTO:
Power take-off (PTO) system and attachment hook-ups.
Maintenance:
Routine service schedules, lubrication, and adjustments.
Disassembly and Assembly:
Step-by-step instructions for disassembly and reassembly of components.
Diagnostic and Testing:
Troubleshooting charts and diagnostic procedures.
Specifications:
Torque specs, clearances, and adjustment tolerances.
Level of Detail:
Highly detailed with clear diagrams and photographs for both novice and expert technicians.
Parts Identification:
Exploded views and part numbers to aid in ordering genuine replacement parts.
File Format:
PDF (Portable Document Format)
Compatibility:
Works on Windows, Mac, and most tablets and smartphones with a PDF reader.
Requirements:
PDF reader software required for viewing.
Searchability:
Text-searchable for quick reference to specific topics and keywords.
Printing:
Clear and legible pages, suitable for high-quality printing if a physical copy is desired.
Binding Type:
Digital (no physical binding)
Paper Type:
Digital file (not printed on paper)
Engine Make and Model:
John Deere 7.6 L, 6-cylinder diesel engine
Displacement:
466 cubic inches (7.6 L)
Power Output:
225 gross horsepower (165 kW) at 2100 rpm
Torque:
Not specified in general sources
Injection Pump:
In-line, direct injection
Fuel Capacity:
90 gallons (341 L)
Wheelbase:
106.3 inches (270 cm)
Length:
183.5 inches (466 cm) (approximate)
Width:
Not specified for standard configuration
Height:
112.6 inches (286 cm) (top of exhaust)
Curb Weight:
Approximately 16,500 lb (7,484 kg) base
Crash Test Rating:
N/A - off-road agricultural equipment not rated
Braking System:
Hydraulic disc brakes on final drives
Steering:
Hydrostatic power steering
Lighting:
Halogen work lights for visibility in the field
Roll Over Protection:
Cab structure designed to meet ROPS standards
Seatbelt:
Operator seatbelts included
Engine Oil Change:
Every 250 hours or annually
Transmission/Hydraulic Fluid:
Every 1000 hours or as indicated by condition
Coolant Change:
Every 2000 hours or 2 years
Engine Oil:
API SF/CD quality, SAE 15W-40 recommended
Transmission/Hydraulic Fluid:
John Deere Hy-Gard or equivalent
Coolant:
Ethylene glycol-based coolant with corrosion inhibitors
Known Issues and Common Wear Items
Common Issues:
Injector nozzle wear, hydraulic pump seal leaks, and electronic sensor failures have been reported.
Common Wear Items:
Brake linings, clutch discs, and hydraulic filter cartridges
Manufacturer:
John Deere, founded in 1837, known for agricultural machinery.
Series:
The 4755 was part of the 55 Series (4455, 4755, 4955) offered from 1987 to 1991, succeeding the 50 Series.
Evolution:
The 55 Series introduced improved electronic engine controls and increased hydraulic capacity compared to earlier models.
Production Location:
Waterloo, Iowa, USA
