WPI NANOLITER2020, Инструкция по эксплуатации

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NANOLITER 2020/200704
World Precision Instruments 25
Replacing the Wire Plunger
1. Verify that the plunger is in the home (retracted) position, just inside the collet. Do not
try to retract it too much.
2. Hold the motor housing with one hand while loosening the aluminum barrel. To
remove it, unscrew it in a counter-clockwise direction with your other hand.
Fig. 45—Unscrew the barrel from the Injector Head.
Fig. 46—The barrel is removed to expose the plunger.
CAUTION : Do NOT disassemble the Motor Housing. Doing so may damage the
plunger drive assembly.
3. Using the 0.035” hex wrench provided with the replacement plunger, loosen the two
set screws.
Fig. 47—Loosen the set screws with the hex wrench.
4. Remove the plunger.
5. Insert the new plunger and tighten the set screws snugly. Do NOT overtighten. The set
screws must be flush with the edge, otherwise the barrel will not seat properly.
NOTE : The pointed end of the plunger is normally oriented out.
6. Slide the barrel over the tip of the plunger. Hold the handle so the plunger is point
straight up. Gently shake the unit until the barrel hole lines up with the plunger and
slides down over it. Carefully position the O-rings and collet on the tip of the plunger.
CAUTION : DO NOT FORCE THE ALUMINUM BARREL OVER THE PLUNGER. The
plunger is easily bent.