0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 227 / 231
700129 Tailstock retract timeout
Cause:
The tailstock failed to return to its retracted position within 4 seconds because there is not enough
hydraulic pressure to drive it back to the retracted position.
Remedy:
Check the pump on the hydraulic tank is functioning.
Check that the hydraulic pipes connecting to the tailstock unit are not leaking.
Check the tailstock advance/retract solenoid located inside the services cabinet.
700146 Minimum tailstock pressure not achieved - failure
Cause:
The tailstock has advanced and reached its part present or maximum advanced position but no
pressure signal was detected within 2 seconds after the position was detected.
state change from 0 to 1 is seem within 2 seconds.
Remedy:
With the workpiece supported between centres adjust the tailstock pressure regulator until the
pressure signal state changes to 1.
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