Segment:
Compact to medium-sized crawler tractor
Application:
Construction, landscaping, agriculture, site preparation
Competitors:
Caterpillar D3 series, John Deere 450/550 series, Case IH CX series
Durability:
Renowned Komatsu build quality and robust construction
Versatility:
Adaptable for various attachments (blades, rippers, etc.)
Engine System:
Detailed diagnostics, overhaul, fuel system, lubrication, cooling, starting, charging
Powertrain System:
Transmission, final drives, differentials, hydraulic drive components
Hydraulic System:
Pump, control valves, cylinders, hoses, filters, troubleshooting, service
Undercarriage:
Track frames, rollers, idlers, sprockets, wear analysis, replacement
Electrical System:
Wiring diagrams, component testing, troubleshooting, instrumentation
Operator Station:
Controls, safety features, cabin systems (if applicable)
Blade And Ripper Hydraulics:
Specific systems for operating front blades and rear rippers.
Scheduled Maintenance:
Oil changes, filter replacements, greasing, inspections
Troubleshooting:
Diagnostic charts, symptom-based problem solving
Repair And Overhaul:
Component removal, disassembly, inspection, assembly, and reinstallation procedures
Torque Specifications:
Engine, transmission, hydraulic, and chassis fasteners
Adjustments:
Brake adjustments, clutch adjustments, hydraulic control adjustments
Component Identification:
Clear diagrams and part identification for all major components.
Service Tools:
Listing of special tools and equipment required for various service procedures.
Depth:
Comprehensive factory-level detail for technicians
Diagnostic Capability:
In-depth diagnostic procedures for all major systems
Rebuild Procedures:
Detailed instructions for complete component rebuilds
Specifications:
Detailed torque specifications, clearance measurements, pressure settings, and other critical technical data.
Make Model:
Komatsu SAA4D102E-2 (typical for this series, verify specific unit)
Engine Type:
4-stroke, turbocharged, diesel
Displacement:
Approx. 4.3 liters (verify specific engine variant)
Emission Standards:
Refer to manual for specific emission compliance for the applicable region and production year.
Net Horsepower:
Approx. 80 HP (verify specific variant)
Peak Torque:
Refer to detailed engine specs within the manual
Injection Type:
Direct injection, common rail (likely for this era, verify)
Type:
Hydrostatic Transmission (HST) - Komatsu Advanced Hydrostatic System (AHSS)
Control Mode:
Variable speed control, inching capability
Transmission Fluid Type:
Komatsu genuine hydraulic oil or equivalent approved fluid (refer to manual for exact spec)
Cooling System:
Integrated hydraulic oil cooling system.
Operating Weight:
Approx. 19,000 - 21,000 lbs (4WD / 2WD variants, verify)
Ground Pressure:
Varies with track gauge and configuration
Transport Dimensions:
Refer to manual for precise length, width, height
Features:
Basic operator instrumentation focused on essential machine status (engine temp, oil pressure, fuel level).
Features:
Limited; primary focus on mechanical and hydraulic control for efficient operation.
Features:
No advanced telematics or connectivity typically found on this model generation.
Engine Oil Change:
Typically every 250-500 operating hours (refer to manual for exact interval and oil type)
Hydraulic Oil Change:
Typically every 1000-2000 operating hours (refer to manual for exact interval and fluid spec)
Filter Replacement:
Fuel, oil, and hydraulic filters to be replaced at recommended intervals, typically coinciding with fluid changes.
Engine Oil:
API CI-4 or CH-4, SAE 15W-40 (Verify Komatsu's recommended specification in the manual)
Hydraulic Fluid:
Komatsu genuine hydraulic oil, ISO VG 46 or equivalent (Verify exact specification and grade)
Coolant:
Permanent type ethylene glycol coolant with corrosion inhibitor (50% mix)
Final Drive Oil:
Refer to manual for specific gear oil type and viscosity (typically heavy-duty gear oil).
Common Wear Items:
Track components (links, pins, bushings, rollers, idlers, sprockets), undercarriage wear, hydraulic system wear due to operating hours and environment.
Hydrostatic Transmission Performance:
Potential for reduced power or responsiveness with high hours, requiring detailed diagnosis and potential pump/motor service.
Heritage:
Komatsu is a globally recognized manufacturer of construction and mining equipment, known for its innovation and durability.
Evolution:
The D38E/P-1A series represents a lineage of reliable and efficient crawler tractors optimized for various work site demands. Komatsu continually refines its designs for improved performance and operator comfort.
Production Period:
Likely produced in the late 1990s to early 2000s (verify specific years for the -1A series)
