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P3000 Series
Users Manual
5-4
5. After removal from the solvent, using a NEW tissue, repeat the cleaning procedure in
step 3, taking great care to ensure that all traces of solvent are removed from the
inside of the tubular piston and weight carrier.
6. Place piston carefully on a NEW tissue where it will not be damaged while the
cylinder is cleaned.
W Caution
Never touch the working surface of a clean piston with bare
fingers — the natural oil in your skin can cause the piston and
cylinder to stick.
7. Wipe any dirt or moisture from the outside surfaces of the cylinder (2).
8. Roll a NEW tissue into a tapered rod of appropriate size. Force the tissue through the
cylinder bore while rotating. Ensure that the tissue is a tight fit inside the bore so that
dirt and contamination is removed.
9. Repeat step 7 using a NEW tissue but from the opposite end of the cylinder.
10. Immerse the cylinder in a suitable, clean solvent, see note in step 4 above.
11. After removal from the solvent, using a NEW tissue, repeat the cleaning procedure in
steps 8 and 9.
Piston Re-Assembly
12. Holding the piston by weight carrier, dip the other end, carefully introduce the piston
into the underside end of the cylinder, and push gently through (the piston will
normally slide freely through due to its own weight).
NEVER FORCE THE PISTON INTO ITS CYLINDER OR DAMAGE WILL
RESULT. If resistance continues, re-clean piston, cylinder, or both. If, after repeated
cleaning, the piston still will not slide freely within the cylinder, then permanent
damage may have occurred. In which case, the parts should be returned to the factory
for evaluation or replacement.
13. Carefully screw the assembly into the instrument, ensuring that the seal (3) is clean
and undamaged, and correctly re-fitted.
Replacement PCU Assembly
W Caution
The piston and cylinder assembly is a matched pair, which is
calibrated and adjusted to a calculated mass figure. If, for any
reason, the piston or cylinder becomes damaged, then the
entire assembly must be replaced.
The replacement assembly consists of the following components: Item numbers 1 and 2.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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