10 Servicing of the OSMOMAT auto
10.8 Replacing a Defective Initiation Needle
There are various reasons why it may become necessary to repair the needle bar or even replace the
initiation needle. See "Table 2 Malfunction of the Upper Cooling System Component Group" and
"Table 4 Malfunction of the Initiation Needle/Power Switch Component Group". Repairs to the
initiation needle must be performed by a
medical device technician
; it is not enough simply to be
skilled in handling equipment!
Before working on the initiation needle, please ensure the following:
The
unit power supply is disconnected!
Risk of electric shock!
The unit has been
decontaminated—especially the initiation needle!
Risk of injury from the tip of the needle!
In the event of injury from the tip of the needle, always consult a doctor to check
whether any infection with a pathogen occurred.
Step 1
Fig. 9).
Detach the needle bar from the motor swipe (
Attach a new needle bar with protective tubing to the motor swipe.
Please note:
1. The needle must be carefully aligned. Bend it into place with your hand if necessary.
2. After the needle bar has been tightened, it must be able to move freely on the sleeve
bearing.
Fig. 9
Replacing a Initiation Needle
2,0 mm
Total le
ngth
o
f ne
ed
le bar
and
needle
Upper dead
center position
Idle
position
Motor swipe
Cooling pin
Reflex
photo-
electric
beam
Sleeve
bearing
Needle
Protective
tubing of
needle bar
Round off the needle
tip with a file
2.0 mm
42 | Servicing of the OSMOMAT auto
