6 re-installing the bottom panel – Hach 900 MAX User Manual
Page 102
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
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
1
10
2
11
3
12
4
13
5
14
6
15
7
16
8
17
9