M
A
iN
T
E
N
A
N
CE
M
A
iN
T
E
N
A
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CE
27
26
PIPETMAN® M CONNECTED
|
USER’S GUIDE
CONFIGURATION
|
PIPETMAN® M CONNECTED
8. Reassemble the upper part of the tip holder and the connecting nut, and then
refit to the body of the pipette by rotating the connecting nut clockwise until it is
finger tight. Fit the O-ring (for P10M, the seal) and reassemble the lower part of
the tip holder. Refit the tip ejector.
The seals for P10M are fragile and can be used only once; therefore, after unscrewing
the lower part of the tip holder you must fit a new seal.
how to Lubricate the Piston (except P10M)
Only use Gilson lubricant (P/N: F2070902, as supplied).
Squeeze a small quantity from the tube onto a clean, lintless cloth. Use the cloth to
transfer the lubricant to the piston. Ensure that the piston is evenly lubricated and that
you wipe away any excess — remember only a fine film of lubricant is required (over
the entire piston).
Maintenance Operation for Multichannel Models
For multichannel models, the lower part should not be disassembled: only the push
button, the connecting nut, and the tip ejector can be replaced.
Changing the Tip Ejector
To remove the tip ejector, keep both
ejector locks depressed. Pull the tip
ejector down.
To refit the tip ejector, gently
re-insert the tip ejector vertically
into the rails of the ejector
support. Pull lightly on the tip
ejector to check the position.
replace the Ejector Spacer
1.
Gently press the tabs from
the ejector spacer and
remove it from the tip
ejector.
2. Insert the ejector spacer and
click it to the tip ejector.
Figure 17
Tip holder parts
Figure 18
Tip ejector and tip ejector spacer
Changing the Seal and/or O-ring
The O-ring is positioned on the piston; it should not be
autoclaved, if worn or damaged in any way, it must be replaced
(refer to Chapter 21
on page 34).
To access the O-ring, remove the tip ejector and unscrew the lower
part of the tip holder. You should now be able to remove the O-ring
from the piston. Sometimes, the O-ring may be found in the recess
at the top end of the lower part of the tip holder. If required, lubricate the piston (refer
on page 27) then fit a new O-ring by sliding it onto the
piston. Reassemble the pipette. Depending on the pipette model the dimensions of the
O-ring will vary (refer to Chapter 21
on page 34).
Servicing the Piston
You may remove the piston assembly to clean, lubricate, or change the piston.
removing the Piston
1.
Remove the tip ejector and (optionally)
the lower part of the tip holder. If you
remove the lower part, take care to
remove the O-ring as described in
Changing the Seal and/or O-ring
above.
2. Unscrew the connecting nut (turn by hand,
counterclockwise).
3. Gently remove the connecting nut and upper
tip holder.
4. Pull off the piston assembly from the body of the pipette — separate the parts
(see below).
5. Clean and autoclave (if required) the piston and holder, together with any
other parts that may need to be treated in the same way (refer to Chapter 16
on page 28).
6. Lubricate the piston,
refer to
7. Reassemble the piston and guide; then carefully insert the assembly into the
body of the pipette. The guide should hold the piston assembly inside the body of
the pipette. You can hear a
“click” when the piston is back in place.
O-ring
NOTE
Take care not to touch the piston, and that it is dust-free. if needed, clean
the assembly with a dust-free cloth.
Figure 15
O-ring
Figure 16
Piston
NOTE
The specifications of the pipette should be checked after changing any part.
in the case of P1200M, the piston holder, piston, and guide are a unit — do
not try to separate them.
.
NOTICE
don't pull on the piston to remove the assembly.
