Mitutoyo AT211 - Checking and Adjusting the Parallelism

18
3 Installation onto the Machine Main Unit
No. 99MBE011A
3.2.2 Checking and Adjusting the Parallelism
1
Place a dial indicator or some other measuring instrument near the e󰀨ective length mark (▽) on the
scale main unit and check and adjust the parallelism of the scale against the machine guide.
Item Description
Measurement
location
Two locations near the e󰀨ective length marks
Check direction
Forward, backward, upward, and downward directions of the mounting surface of
the scale main unit
Parallelism allow-
ance
"4.6 External View and Dimensional Drawings of the Scale Main Unit" (page
38)
Lever type dial indicator
Dial indicator
Near e󰀨ective length mark
Upward and
downward
directions
Forward and
backward directions
Tips
• Check the parallelism of the scale main unit by moving the machine's movable parts, such as the slide table,
with your hand.
• The check directions are the same for both xing at multiple points and xing at both ends.

Checking the intermediate support
• You need to check the intermediate support for a scale unit that is xed at both ends and has an
e󰀨ective length of 500 mm or more.
• If the intermediate support touches the dial indicator when you move the slide table or some other
part, release the spindle by pushing it up.
Dial indicator
Spindle
Slide table moving direction
Release spindle
Intermediate
support