Target Audience:
Contractors, farmers, rental fleets, and heavy equipment owners seeking reliable compact loader performance.
Competitive Analysis:
Versatile and robust design offering competitive lift capacity and maneuverability compared to similar skid steers of its era.
Engine:
Powerful diesel engine options for demanding tasks.
Durability:
Rugged construction designed for high productivity and long service life.
Versatility:
Compatible with a wide range of attachments for various applications.
Ease of Service:
Simplified maintenance access points reducing downtime.
Engine:
Complete engine removal, disassembly, inspection, and overhaul.
Fuel System:
Injection pump, injectors, fuel lines, and filters.
Electrical System:
Wiring diagrams, starting/charging, sensors, and switches.
Hydraulic System:
Pumps, valves, cylinders, and hoses with pressure settings.
Transmission:
Gearbox, axles, and drive components.
Drive System:
Chain case, sprockets, and final drives.
Steering and Brakes:
Steering linkage, brake adjustments, and overhauls.
Undercarriage:
Tires, wheels, and chassis components.
Hydraulic Attachments:
Installation and hydraulic connections.
Step-by-step Instructions:
Detailed procedures with clear guidance for each repair.
Illustrations:
Diagrams and pictures to aid in part identification and reassembly.
Specifications:
Torque values, clearances, and tolerances.
Maintenance:
Scheduled maintenance tasks and checklists.
Troubleshooting:
Diagnostic charts for common issues.
Safety Precautions:
Warnings and safety practices.
Level:
Comprehensive - suitable for DIY owners and professional technicians.
Parts Information:
Exploded views and part numbers for ordering.
Compatibility:
Works on Windows, Mac, Linux, iOS, Android, and e-readers.
Requirements:
PDF reader or viewer.
Searchability:
Bookmarked and searchable text for quick navigation.
Print Quality:
High-resolution images and text for clarity.
Binding Type:
Digital binding (non-applicable)
Paper Type:
Digital paper (non-applicable)
Model:
4-390 or similar (see manual)
Type:
Diesel, 4-stroke, liquid-cooled
Displacement:
Approx. 3.9 L
Power Output:
50-60 hp (37-45 kW) depending on configuration
Injection:
Direct injection
Fuel Tank Capacity:
About 30 gallons (114 L) - check manual
Safety Ratings and Features
Crash Test Information:
N/A - off-road equipment not typically crash rated
Active Safety:
Two-handed joystick controls, neutral start switch, backup alarm (if equipped)
Passive Safety:
Roll-over protective structure (ROPS) and seat belt
Service Intervals and Fluids
Engine Oil Change:
Every 250 hours or yearly (refer to manual)
Hydraulic Fluid:
Case Hy-Tran Ultra or equivalent - check level daily
Transmission Fluid:
Case TCH or equivalent - check and replace per schedule
Coolant:
50/50 mix of ethylene glycol and water
Known Issues:
Belt wear, hydraulic leaks, wiring issues
Common Wear Parts:
Tires, belts, hoses, filters
Manufacturer:
Case Corporation (later CNH Industrial)
Model Evolution:
Part of Case's 1840 series of skid steers, known for reliability.
Production Location:
Burlington, Iowa, USA (historically)
