Sigma 900 MAX Refrigerated Sampler Instrument Manual

Page 100

Re-installing the Bottom Panel

8990mnt.fm

Section 7

To open the controller:

1. Remove the 17 screws from around the perimeter of the controller

back panel.

2. Carefully pull open the bottom panel and let the attached connectors

swing out of the way.

3. If necessary for the repair being performed, unplug the appropriate

connectors. Always note each connector location before unplugging

anything. Re-installing a plug into the wrong connector can cause

extensive damage.

Note: The front panel gasket has a light coating of grease to help ensure a watertight

seal. Do not contaminate the grease or gasket area with dirt or debris during

servicing. Always replace the gasket if it is damaged or missing. Never

reassemble the case without the gasket properly installed.

7.6 Re-installing the Bottom Panel

Note: Always follow the procedure

below when re-installing the

sampler bottom panel. Improper

panel installation may result in

damage to

the instrument.

1. Hand tighten each nut until it makes contact with the panel.

2. Tighten the nuts in sequence shown in Figure 30 to 5 in.-lb (0.56 N-m).

3. Repeat the tightening procedure in the same sequence to 10 in.-lb

(1.13 N-m).

Figure 30 Tightening the Nuts on the Bottom Panel