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7.8 Replace connecting tube for oxygen duct
Materials and tools required
•
ESD workstation
•
Slot screwdriver, insulated, size 1
•
Phillips screwdriver, size 2
•
Ring spanner 14 mm
•
Open-ended spanner 15 mm
•
Tubular hexagon box wrench 12 mm
•
Allen key, size 5
•
Side nippers
•
Bulldog nippers for single-lug clamp fittings
•
Spirit
7.8.1 Remove oxygen duct
1. Open the device (see "7.2 Open the device"
on page 22).
2. Remove the battery and both circuit boards
from the bottom part of the housing (see "7.6
Replace main circuit board and/or CAP 100
circuit board" on page 25).
3. Unscrew threaded connection
duct inlet
from the bottom part of the housing
11
using the Allen key.
4. Unscrew the four screws
device.
5. Unscrew the two screws
side of the device.
6. Take oxygen duct
51
the housing.
7.8.2 Repair oxygen duct
1. Cut the two single-lug clamp fittings
connecting tube for oxygen duct
2. Take the connecting tube for oxygen duct
off the inlet and outlet blocks.
3. If seal
or
is damaged, proceed as
44
45
follows:
– take off the damaged seal.
– remove all residues of glue with spirit.
– allow the spirit to evaporate completely
from the block in question.
– glue on a new seal.
4. Put two new single-lug clamp fittings
new connecting tube for oxygen duct
of oxygen
46
on the rear of the
50
on the right-hand
50
out of the bottom part of
off
54
.
55
55
on a
54
.
55
46
51
Inlet block
44
54 55
Repair information and repair instructions
50
Outlet block
Outlet block
54
45
29
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