Case 125B Excavator - Specs & Parts Guide

Description:

Key Specifications

Performance Features

• High-Duty Boom and Stick – Built for strength and deep trenching

• Fuel-Efficient Engine – Tier-appropriate Case 4-390 design

• Heavy Counterweight – Adds stability for large bucket work

• Full-Rotation Cab with ROPS – Enhanced safety and operator visibility

• Precise Hydraulics – Responsive control for both power and finesse

Serial Number Location

The serial number for the Case 125B Excavator is typically stamped on the frame near the cab platform or behind the right-side access panel. It's critical for verifying compatible parts and tracking service intervals.

Maintenance & Common Issues

Regular Maintenance

• Engine Oil & Filter – Replace every 250 hours

• Hydraulic Filter & Fluid – Change every 500 hours

• Undercarriage Check – Inspect rollers, pins, and track tension monthly

• Boom/Arm Greasing – Daily in high-use environments

Common Issues & Fixes

• Hydraulic Weakness – Likely due to worn pump seals or low pressure – shop seal kits

• Engine Overheating – Clean radiator and verify coolant circulation

• Boom Drift or Bucket Creep – Caused by internal cylinder leakage – replacement cylinders available

• Fuel Starvation – Replace clogged filters or service injectors – engine components here