Weinmann MEDUMAT Easy CPR, Service And Repair Instructions

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30 Repair information and instructions
6.3 Open the device
Materials and tools required
• ESD-protected workplace
• Size 1 Phillips screwdriver
• Tubular hexagon box wrench, 10 mm
• Special tool WM 22829 from special tool set WM 15349
• Flat-nose pliers
1. Use a coin to open battery compartment latch
44
and remove battery
27
.
2. Lift off cover
41
of the adjuster knob.
3. Hold adjuster knob
42
steady with the special
tool and undo the nut (max. 2 turns) using a
tubular hexagon box wrench (10 mm).
4. Pull off adjuster knob
42
.
5. Place the device on a non-slip surface and
unscrew the 4 screws
45
from the rear wall of
the device.
6. Place the device on its side and pull both parts
of the housing carefully apart until the retaining
pin of the knob is pulled right out of upper part
of housing
29
.
7. Take speaker
13
out of lower part of the
housing
33
and disconnect the electrical
connection.
Demand-
flow
44
27
0,3
0,6
10
0
41
42
45
33
45
Demand-
flow
13
29
33