MTS 709 Alignment System - Manual (Page 105)

Concentric Adjustments
709 Alignment System Alignment Wizard 105
Concentric Adjustments
Concentric adjustments are done using the upper gauges (red) and lower gauges
(blue) as guides. In this discussion, the focus is on the upper gauges (red); the
blue gauges will typically be equally opposite on a central vertical axis. The
following paragraphs describe which adjustment screws to loosen/tighten
depending on the value of the upper (red) gauge reading. The goal of the
concentric adjustments on the 609 Alignment Fixture (C0, C90, C180, and C270)
is to adjust these screws to move the upper gauge reading and lower gauge
reading together so they line up on the same axis as close as practical. Following
is an example of the alignment wizard showing concentric adjustments.
There are two sections for the concentric adjustments:
• one for when the 609 alignment fixture is mounted to the crosshead
• one for when the 609 alignment fixture is mounted to the base
The difference between the two is that when the 609 alignment fixture is
mounted to the base, the instructions for the adjustments are reversed from when
it is mounted to the crosshead.