Replacing The Fuse; Replacing Ventilation Control Knob - Weinmann MEDUMAT Basic Servicing And Repair Instructions

6.7 Replacing the fuse

Tools required:
• Crosstip screwdriver, size 2.
1. Open the device (see "6.4 Opening the device" on page 22).
2. Pull out the defective fuse
3. Carefully press a new fuse
4. Close the device (see "6.5 Closing the
device" on page 23).
5. Perform a functional check (see "3. Final
Check" on page 8).

6.8 Replacing ventilation control knob

Tools required:
• Crosstip screwdriver, size 2,
• L-handled socket wrench 10 mm,
• Special tool WM 22829 from special tool set WM 15349,
• Calibration device WM 22836.
1. Remove the faulty ventilation control knob
To do so, proceed as follows:
– Turn the control knob
to the left, so that you have a reference
point when reassembling later.
– Prise off the cover
– Hold the control knob with the special tool
and undo the nut with a tubular socket span-
ner (10 mm).
– Pull the control knob
2. Attach the new control knob
– Push the control knob
almost as far as it will go.
– Turn the knob until the white line points to
the lowest MV value.
– Hold the knob with the special tool and
tighten the nut to secure it.
3. Check the control knob
stop the white line must point to the lowest MV
value, at the right stop it must point to the high-
est value. If this is not the case, slacken the nut
and align the control knob correctly.
4. Place the cover on the control knob
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5. Perform calibration (see "6.9 Calibration after
removal of PCB, ventilation control knob 5
and/or pneumatic block" on page 25).
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Repair information and repair instructions
upwards.
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into the holder.
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.
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as far as it will go
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.
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off.
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:
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onto the spindle
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readings: at the left
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.
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5
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(Two-way switch only on Basic p)
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