40 Maintenance Manual
Reassembly of the bezel should be done in reverse order, taking care not to over-
tighten screws.
6.2.4 Replacement of Keyboard
The keyboard may be removed with or without removing bezel.
6.2.4.1 Removal of Keyboard when removing the bezel.
Remove front bezel (see 6.2.3). Remove 7 nuts securing keyboard to bezel. Do
not remove 2 nuts recessed in bezel, they secure the keyboard assembly together.
Keyboard can now be removed from from bezel.
Reassembly of the keyboard should be done in reverse order. Keyboard-to-bezel
nut torque: 35 in-oz +/- 5 in-oz. It is critical that keyboard-to-bezel nuts are not
over-torqued. If the silicone keypad material is overcompressed, the keys will
not be properly vented, and key function may be compromised.
6.2.4.2 Removal of Keyboard without removing the bezel.
Disconnect the line cord and remove wrap-around (see 6.2.1). Disconnect key-
board cable from keyboard. Remove nut securing keyboard to ground bracket.
Through the holes located in chassis front panel, remove 7 nuts securing key-
board to bezel.
Note, this method of removing keyboard is not recommended. There is a high
possibility of dropping nuts between bezel and chassis metal front panel.
Reassembly of the keyboard should be done in reverse order. Keyboard-to-bezel
nut torque: 35 in-oz +/- 5 in-oz. It is critical that keyboard-to-bezel nuts are not
over torqued. If the silicone keypad material is overcompressed, the keys will not
be properly vented, and key function may be compromised.
6.2.5 Replacement of Printer
Remove the wrap-around (see 6.2.1).
Disconnect 4 cables at printer board serving the printer. Remove paper roll from
printer assembly. Turn instrument on its side to gain access to 4 screws securing
printer assembly to chassis (located on bottom of instrument). Remove screws and
carefully remove entire printer assembly from instrument. Remove 2 screws secur-
ing printer motor cover and remove cover. Remove 3 screws securing printer to the
printer bracket. Remove the printer.
Reassemble new printer in reverse order. Use loctite threadlocker on 3 screws secur-
ing printer to printer bracket.
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