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e120b

  1. D

    Need manuals for old excavator

    I have an E120b cat 1990 the serial number is 7NF05014 I purchased an operation and maintenance manual for it by the serial number and it doesn’t have anything I need or just would like in it. Any pointers on a reliable source for manuals I’d like to have the operation and maintenance manual as...
    • Dante Lomelo
    • Thread
    • cat catapillar e120b excavator manual parts repair service
    • Replies: 1
    • Forum: Excavators
  2. D

    Help with E120b Cat auxiliary hydraulic line setup

    I recently purchased an e120b caterpillar excavator I would like to get a hydraulic thumb but I have no auxiliary hook ups so I was wondering if someone can help me out
    • Dante Lomelo
    • Thread
    • attachment auxiliary cat catapillar e120b excavator hose hydraulic thumb
    • Replies: 6
    • Forum: Excavators
  3. M

    Cat E120B Pressure Reducing Valve / Overall Operating Force

    I have been tasked with repairing a 1994 Cat E120B. The machine bogs down when moving heavy loads and the swivel is a bit too fast. The controller displayed the following lights: L1 L4 L7 on steady, L6 blinking. Operating under the assumption the pressure reducing valve was the culprit I ran...
    • Machinist
    • Thread
    • e120 e120b operating force pressure regulating valve prv
    • Replies: 5
    • Forum: Excavators
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