Newport IPV, Installation Manual

Page: 47 / 65

8
Use the following procedure to level the table. The special wrench (Figure
2.3) is for all adjustments.
Support
Clamp
Bolts
Level Adjustment
Hex Nut
Support Plate
Spanner Wrench
Figure 2.3 — Isolator Leveling Wrench
A. Refer to Figure 2.4. As shown, use one of the special wrenches to hold
the hex nut stationary. Insert the prongs of the second wrench into
the holes on the bottom of the support plate. Rotate the plate using
the top wrench to adjust the height.
B. Place a level on the table top, approximately in the center.
C. For each isolator, adjust the support plates as required to bring the
table to a level condition. Be sure to check the level using both the
length and width axes of the table. Verify that the centering disks are
centered in and resting on their respective guides (Figure 2.4).
Bolt & Clamp
Support Plate
Centering Disk
Centering Guide
Hex Nut
Wrenches
2.55 in. (65 mm)
Nominal
Isolator fully down
on stops – no air
applied
Figure 2.4 — Level Adjustment of Isolators
D. When the table is completely level, ensure by eye that every isolator
support plate is snug against the table bottom and that each center-
ing disk is centered in its guide (Figure 2.4).
E. Use the level to confirm that the table top is still level and equally
supported by all isolator support plates. Tighten all isolator clamp
bolts snugly to secure the table to the isolators.
F. Loosen the two screws securing each leveling valve to its bracket.
Slide the valve body until it is approximately 0.060 inches (1.5mm)
below the bottom of the table. Be sure the valve is not tilted, then
tighten the screws.
2.2
Leveling the Table