Chapter 2 Assembly & Installation
16
Models QT-740 & QT-750 - Service Manual
7. If magnet brackets were loosened for tabletop installation, re-align longitudi-
nal magnets as follows:
a. Place a 0.03" feeler gauge (approximate thickness of two business
cards) between magnet and Brake Pad and re-tighten screws as
shown in Figure 8).
b. Press float foot pedal. The magnet should release from Brake Pad. If
not, push against magnet until it releases.
c. Slide the Longitudinal Magnet Bracket toward Tabletop Rail until
Brake Pad just contacts the rail. Ensure Brake Pad is parallel with
respect to rail.
d. Tighten two (2) hex head screws in Longitudinal Magnet Bracket.
8. Reattach the End Trim Plate to the Tabletop Assembly.
9. Re-install the two (2) Table Top End Stop Bumpers on Tabletop Frame.
10. Install strip of double-sided tape (supplied with system) on End Tabletop Sup-
port (see opposite End Tabletop Support with factory-installed tape for cor-
rect positioning).
11. Install the radiographic portion of tabletop (i.e., phenolic) by carefully placing
it on the Tabletop Assembly.
12. Press down firmly along all four edges of the phenolic tabletop to secure.
Figure 8. Adjusting the Longitudinal (Float) Magnets
LONGITUDINAL
MAGNET BRACKET
TABELTOP
RAIL
SET GAP
TO 0.03"
MAGNET
BRAKE PAD
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