Putzmeister Fault Code

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F0302 / E302

Pumping Piston Short-Stroking / Erractic

System

Drive Cylinders

Symptom

Pumping Piston Short-Stroking / Erractic

Diagnosis & fix steps

LOGIC: Stroke Sensor Differential Cylinder Left Signal Implausible. ACTION: Remove inductive stroke proximity switch on left hydraulic cylinder. Check sensor face for metal debris; verify sensor air gap (spec: ~1.5–2.0 mm) and inspect 24V supply and signal return in the chassis distribution box.

Red Seal field insights

Stroke Control (EPS): Ergonic Output Control (EOC/EPS) monitors cylinder turnaround timing. Sensor drop forces manual override mode and stops automated hydraulic cushioning.

Same code keeps coming back?

That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.

Book an uptime review

Read before you touch anything

  • This is general reference information, not a repair manual. It is for trained, qualified technicians.
  • Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
  • Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
  • You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
  • Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.

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