Code 701506: Oil/air lubrication > oil operating pressure not present
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Oil/air lubrication > oil operating pressure not present alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
"Oil/air lubrication, unit on" was actuated, but there was no response from the "Oil/air lubrication, oil operating pressure available" pressure switch within 5 seconds. Feed Stop and Spindle Stop "Oil/air lubrication, unit on" is switched off again. "Oil/air lubrication, air operating pressure valve on" is switched off. "Oil/air lubrication, vacuum suction nozzle valve on" is switched off with a run-on time of 10 minutes. Error messages Oil/air lubrication Oil/air lubrication > oil operating pressure not present 1. Check the following components: The actuation of the "Oil/air lubrication, unit on" unit. The PLC input signal and the "Oil/air lubrication, oil operating pressure available" sensor. 2. As soon as the malfunction has been remedied, press one of the following keys: [FEED START] [CYCLE START] [DELETE ERROR] Message is cleared. The menu can be found under: Chapter 2.6 ‘Oil/air lubrication’ on page 12
Source: CHIRON Error Message Overview, all series (Siemens control, V2.0.6, 2012)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Chiron Siemens-Control CNC Alarms
Chiron controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 701506 on the Siemens-Control CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Chiron's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 545 Chiron Siemens-Control CNC codes.
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