PM Class B Intermediate Service Checklist for International LT625

Complete intermediate maintenance service procedures for your International LT625 truck to ensure optimal performance and reliability.

International LT625 PM Class B Service Information

This PM Class B intermediate service checklist is specifically designed for International LT625 trucks. This comprehensive maintenance procedure should be performed every 25,000-30,000 miles or as specified in your maintenance schedule. The International LT625 requires thorough intermediate service to maintain peak performance, fuel efficiency, and regulatory compliance.

⏰ Service Interval Recommendations

Mileage: Every 25,000-30,000 miles or 6 months
Operating Hours: Every 1,000-1,200 engine hours
Severe Duty: Reduce interval by 25% for extreme conditions

International LT625 PM Class B Service Procedures

Follow these structured intermediate service procedures specifically designed for your International LT625 truck.

LT625 Engine Service & Oil System

Change engine oil and oil filter (15W-40 or as specified)
Replace air filter element and inspect air intake system
Replace fuel filter and inspect fuel system
Check engine oil leaks and seals condition
Inspect LT625 engine mounts and brackets
Test engine oil pressure and temperature
Verify proper oil viscosity for operating conditions
Update engine service records and reset indicators

LT625 Transmission Service

Check transmission fluid level and condition
Replace transmission filter if due for service
Inspect transmission cooler lines and connections
Test shift quality and operation
Check LT625 transmission mounts and linkages
Inspect driveline and U-joints
Verify proper fluid temperature operation
Document transmission service history

LT625 Brake System Inspection

Inspect brake pad thickness and condition
Check brake rotor condition and thickness
Test air brake system operation and pressure
Inspect brake chambers and slack adjusters
Check LT625 ABS system functionality
Verify brake adjustment and stroke
Inspect brake lines and connections
Test parking brake operation and holding power

LT625 Cooling System Service

Check coolant level and condition
Inspect radiator and cooling system components
Test thermostat operation and temperature
Check cooling fan operation and controls
Inspect LT625 charge air cooler system
Verify proper coolant concentration (50/50 mix)
Check for coolant leaks throughout system
Test cooling system pressure and cap

International LT625 PM Class B Component Checklist

Inspect and service these critical International LT625 components during intermediate maintenance.

LT625 Differential & Axle Service

Check differential oil level and condition
Inspect axle seals for leaks
Check wheel bearing adjustment and play
Inspect differential housing for damage
Verify proper LT625 axle alignment
Test differential lock operation if equipped
Inspect axle housing and mounting
Document differential service intervals

LT625 Suspension & Steering

Inspect leaf springs and bushings
Check shock absorber condition and operation
Verify steering box fluid level and condition
Inspect tie rod ends and steering linkages
Check LT625 cab suspension system
Test power steering operation and pressure
Inspect steering column and wheel
Verify proper wheel alignment specifications

LT625 Electrical System Check

Test battery condition and charging system
Inspect alternator output and belt condition
Check all lighting systems and functions
Verify LT625 electronic control modules
Test starter motor operation and draw
Inspect wiring harnesses for damage
Check fuses and electrical connections
Verify proper grounding throughout vehicle

LT625 Exhaust & Emissions

Inspect exhaust system for leaks and damage
Check diesel particulate filter (DPF) condition
Verify selective catalytic reduction (SCR) system
Test exhaust gas recirculation (EGR) operation
Check LT625 aftertreatment system components
Inspect exhaust mounting and brackets
Verify proper exhaust backpressure
Document emissions system service history

LT625 Tire & Wheel Service

Check tire tread depth and wear patterns
Verify proper tire pressure all positions
Inspect wheel rims for cracks or damage
Check lug nut torque specifications
Rotate tires according to LT625 pattern
Inspect valve stems and tire pressure monitoring
Check tire age and replacement needs
Verify proper load rating and speed rating

LT625 HVAC & Cab Systems

Replace cabin air filter
Check air conditioning refrigerant level
Inspect heater operation and controls
Test defrost and ventilation systems
Check LT625 air seat operation
Inspect cab interior and controls
Verify proper HVAC system operation
Check air compressor and dryer system

LT625 Safety & Compliance Check

Inspect fire extinguisher and emergency equipment
Check triangle reflector kit completeness
Verify DOT inspection sticker validity
Test all safety warning devices
Check LT625 specific safety features
Inspect seatbelt and restraint systems
Verify compliance with current regulations
Update safety equipment expiration dates

LT625 Documentation & Records

Complete PM Class B service checklist
Update maintenance records and history
Record all fluid changes and specifications
Document any repairs or replacements
Schedule next LT625 service interval
Update electronic logging and tracking
Provide service summary to operator
File maintenance documentation properly

⚠️ CRITICAL MAINTENANCE NOTICE

Failure to perform PM Class B intermediate service on schedule can result in major component failure, increased operating costs, emissions violations, and potential safety hazards. The International LT625 relies on regular intermediate maintenance to maintain warranty coverage and optimal performance.

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