Dual Arm Tool Changer; Scheduled Maintenance For Dual Arm Tool Changer - Siemens SINUMERIK 840D Maintenance Manual

FADAL MACHINING CENTERS
4.1.8 DUAL ARM TOOL
CHANGER
4.1.9 SCHEDULED
MAINTENANCE FOR
DUAL ARM TOOL
CHANGER
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The causes of abnormal wear and fractures will be apparent when the tool changer is
used without lubricant. It is very important to grease all moving parts of the tool changer
at least once a week.
Lubricant
The lubricant should be changed annually, or when it has become visibly deteriorated.
The recommended lubricant is SAE 90-140. The DATC uses approximately 5 liters of
lubricant (1.3 gallons).
Grease
Grease should be spread once a week in the following locations:
1. The claws of the tool changing arm unit.
2. The tip of the release pin of the tool changing arm unit.
Cleaning
1. Remove the chip powder from around the proximity switch inducing box.
2. Remove the chip powder from around the inverted moving body of the tool pot.
3. The tool changing mechanism must be cleaned frequently to prevent excess build
up of chip powder.
Inspection
Check the parts of the tool falling mechanism regularly and, check for grease on the
sliding base of the tool falling mechanism and the sliding base of the pull rod. Check the
parts of the tool pots and tool discs for tightness and overall condition.
The maintenance schedule is based on machine usage of eight hours a day, five days a
week.
Daily Maintenance
Perform the following daily:
1. Cleaning
a. Remove the chips and debris surrounding the proximity switch inducing block.
b. Remove the chips and debris that have accumulated on the inverted moving
body of the tool pot.
c. Clear the tool changing mechanism of all debris before any operation.
MACHINE MAINTENANCE MAN-0126_ R1