Steering System - Pressure Low

Volvo CE Heavy Equipment Warning Hydraulic

Model: Volvo L120H Wheel Loader | Code: VOLVO SA-02

Applicable Systems
EC220 Excavator

Symptoms

Steering hydraulic pressure below operating range; steering may feel heavy or unresponsive.

Possible Causes

  • Steering pump worn
  • Steering priority valve malfunction
  • Steering cylinder internal leak

Troubleshooting Steps

  1. Step 1: Check steering pump output pressure
    Pressure >= 140 bar at idle
  2. Step 2: Inspect steering priority valve operation
    Valve prioritizes steering over implements
  3. Step 3: Test steering cylinder for internal leak
    Cylinder holds pressure
  4. Step 4: Check steering filter for restriction
    Filter clean
  5. Step 5: Replace pump or cylinder as needed
    Steering pressure within spec

How to Reset

Clear via Volvo Tech Tool after steering system repair.

Common Replacement Parts

  • Steering Pump P/N: VOE15890249
  • Steering Filter P/N: VOE15890250

Frequently Asked Questions

  • Q: Why does steering have priority over implements?

    Safety design. Steering priority valve ensures steering function is maintained even when hydraulic demand from implements is high.

Related Volvo CE Fault Codes

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Source: volvo fault codes reference

Category: Heavy Equipment

Published: 2026-10-13