Thermo Scientific SAM12, Manual

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Maintenance and Trouble Shooting Issue: 1.0
11-12 SAM12 User Manual Thermo Fisher Scientific
catch strike block must be adjusted by one turn (1.6mm)
and the procedure repeated.
8. Apply Dow Corning primer 1204 to rear (surface
without edge chamfers) of stop block and mating
surface of frame and allow 2 hours to dry. Apply Dow
Corning RTV 3145 adhesive to rear of stop block and
position stop block on frame 3mm below and 2.5mm to
the left of the RH edge of solenoid/catch block. Close
Door and allow Adhesive to cure for 12 hours before
opening Door.
Note: Adhesive may take up to 72 hours
to fully cure.
9. Measure the gap between door and stop block and
adjust thickness of catch shim until gap is less than
0.2mm.
10. For units with one door, secure switch assembly to the
frame and close door. For units with two doors, check
switch operation as detailed in Section 11.4.3.
11. Replace and secure main liner.
Trouble Shooting
This Section covers a number of possible operational problems,
their likely causes and possible remedial action.
WARNING: EXERCISE EXTREME CAUTION WHEN
SERVICING.
There are dangerous mains voltages around the power supply
module and very dangerous high voltages on the HV and
amplifier boards. High voltage also exists on the LCD
backlight and in the inverter enclosure. The 12 v battery stores
considerable energy, so care should be taken not TO short the
terminals. Please read the cautionary notes in
Servicing of the
Electronics Chassis - Type 5689A (page 11-3) .
In general a successful start, or “boot up” when the SAM12
key-switch is turned ON is indicated by:
•
a series of “System Self Test” display messages
•
a series of lamp tests , each accompanied by a “beep”
tone
•
a series of internal (invisible) self tests.
•
a single chime “ding-dong” on satisfactory completion.
Normal Start-up (Boot-up)
Operation