Target Audience:
Owners, service technicians, and mechanics of John Deere 4055, 4255, and 4455 tractors
Era:
Late 1980s to early 1990s utility tractor lineup
Advantage:
Known for power, versatility, durability, and robust construction in agricultural operations
Comprehensive Coverage:
Detailed explanation of system functions, diagnostic procedures, and maintenance guidance
Real Photo Illustrations:
Actual photos and color schemes to aid in understanding
Indispensable Resource:
For maintaining optimal performance and longevity
Models Covered:
John Deere 4055, 4255, and 4455 tractors
Systems Covered:
Engine, transmissions, drivetrain, chassis, steering, brakes, hydraulics, electrical, operator station
Manual Type:
Operation & Tests Technical Manual
Delivery Method:
Instant download
Engine:
Detailed operation, testing, and troubleshooting
Transmission:
Covers both QUAD-RANGE and Power Shift transmissions
Drivetrain:
Includes axles, differential, and final drives
Chassis:
Frame and mounting components
Steering:
System operation, tests, and adjustment
Brakes:
Service and diagnostic procedures
Hydraulics:
Pumps, valves, cylinders, and hitch
Electrical Systems:
Wiring, starting, charging, and lighting
Operator Station:
Cab, controls, and instrumentation
Operation:
Correct operating procedures for each system
Tests:
Detailed tests and measurements with specifications
Diagnosis:
Systematic failure identification and troubleshooting
Maintenance:
Preventative maintenance schedules and procedures
Repair:
Step-by-step guidance for repair and overhaul
Theory of Operation:
Explanations of how each system functions
Level of Detail:
Comprehensive technical information for hands-on repair
Diagrams and Photos:
Actual real photo illustrations and color schemes
Special Tools:
Information on dealer-fabricated tools and test equipment
Part Numbers:
N/A - Parts information is not detailed in this manual
Primary Engine:
John Deere diesel engine
Engine Range:
Various displacements and power ratings depending on model
Horsepower Range:
Approximately 100 - 120 HP (varies by model)
Torque:
N/A - not specified in manual
Injection:
Direct injection (typical for era)
Capacity:
N/A - not specified in manual
Crash Test Information:
N/A - not applicable to agricultural tractors
Safety Start Switch:
Prevents starting in gear
Seat Switch:
Interlock for operator presence
Lighting:
Work lights and road lights
Rollover Protective Structure (ROPS):
Available or standard on some models
Seatbelt:
Provided for operator
Oil Change:
Every 100 hours or annually, whichever comes first
Filter Replacement:
Regular intervals per manual
Hydraulic Fluid:
Check and replace at specified intervals
Engine Oil:
API service classification CD or higher, SAE 15W-40 (typical)
Hydraulic Fluid:
John Deere Hy-Gard or equivalent
Coolant:
Ethylene glycol based, 50/50 mix
Common Wear Items:
Fuel filters, air filters, hydraulic hoses, belts
Potential Trouble:
Electrical connections may corrode; check regularly
