DISCO-B4-GLONASS H
ARDWARE
M
ANUAL
V
ERSION
1.0.3
Figure 11
:
Removing crews around the housing, opening the cover, inserting the SIM card into
the SIM card holder and screwing the housing again.
5)
Clean the O-ring (the black rubber ring that goes around the lower case). To maintain the life of
the O-ring we recommend to grease it with silicone "e.g DC4" before closing the case.
Hint:
When opening a DISCO-B4 device, the O-ring rubber has to be removed and replaced by a
new one. The O-ring rubber must be greased using silicone "e.g DC4". For each device you need
5g silicone DC4 for greasing the O-ring. We strongly recommend an annual replacement of the O-
ring rubber. Don't use the old O-ring rubber anymore. How to replace the O-ring, refer to the
chapter
Fehler: Referenz nicht gefunden
.
6)
Now, hold the lower case in your left hand with the battery showing the left side and the cover in
your right hand as shown in figure above
(6)
. Then place the cover back on to the lower case
(7)
by ensuring first that the holes at the outer edge of the upper and lower cases fit exactly to each
other as if both cases fit in place it is not possible to rotate the cover
.
7)
Finally, press smoothly both cases
(8)
with your hands
with care not to damage the black O-ring
and then screw in all 12 screws (included) on the 12 small holes of housing (see below) using the
Torx T6 Screwdriver. Be careful not to over-tighten these screws as this could damage the device
housing. The maximum tightening torque used on the Torx screws must not exceed the
maximum value of 0.6 Nm, recommend 0.5 Nm
.
Figure 12
:
Secure the cover with provided screws
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