Siemens SINUMERIK 840D Maintenance Manual page 79

OCTOBER 2005
2. Inspection:
a. Check the parts of the tool falling mechanism for damage and wear. Add
grease to the sliding base of the tool falling mechanism and the pull rod.
b. Check the parts of the tool pots, tool discs, and snap rings for damage and
tightness.
Grease Maintenance
1. Perform the following weekly:
a. Grease the claws of the tool changing arm unit.
b. Grease the tip of the release pin of the tool changing unit.
2. Check and replenish the following parts with grease every six months:
SECTION
Too magazine
Index mechanism
Tool pot
Tool arm
Lubricant Maintenance
The lubricant inside the lubricant container of tool changing mechanism should be
changed after working for 2400 hours. When the cam, rollers and bevel gear are in use
without lubricant abnormal wear and fractures will occur. Appropriate quantity of
lubricant should be a little more than half of the lubricant container.
Change the lubricant annually or as needed. The recommended lubricant is SAE 90-
140. The Dual Arm Tool Changer uses approximately:
40T fill oil to the middle line of oil glass about 6L (1.5 gallons)
50T fill oil to the middle line of oil glass about 10L (2.5 gallons).
MACHINE MAINTENANCE
SIEMENS MAINTENANCE MANUAL
PARTS NAME
Driving roller
Cylindrical cam
Roller wheel
Plunger
Tool holding rod
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