Replacement - Fluke P3830 User Manual

5. Wipe excess fluid from the outside surfaces of the cylinder.
6. Roll a NEW tissue into a tapered rod of appropriate size. Force the tissue through the
7. Repeat the above step, using a NEW tissue, but from the opposite end of the cylinder.
8. Immerse the cylinder in a suitable, clean solvent, then, using NEW tissues, repeat the

Replacement

1. Ensure that the O Ring is clean and undamaged, and that it is fitted correctly in the
2. Place cylinder on top of the PCU Column, with the reduced diameter at the top,
3. Hold the Piston by the larger "head" end, and dip the smaller "working" end into a
4. CAREFULLY introduce the working end of the piston into the Cylinder — ensuring
5. If resistance is felt, introduce more fluid. If resistance continues, re-clean piston,
6. Screw Piston Nut B onto Nut A to retain the Piston.
7. Carefully replace Weight Carrier Tube Assembly, ensuring that the central hole in the
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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.
cylinder bore whilst rotating. Ensure that the tissue is a tight fit inside the bore so that
dirt and contamination is removed.
cleaning procedure with the tapered tissue rolls.
top of the PCU Column.
secure with Piston Nut A.
container of CLEAN operating fluid. Transfer this to the top of Piston Nut A, and
allow a few drops of the fluid to run through the bearing assembly and through the
bore of the Cylinder. Repeat this 3 or 4 times to ensure a good film of fluid in the
Cylinder.
that it is held VERTICALLY, and push gently through.
Never force the piston into its cylinder or damage will result.
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.
top locates correctly on the top of the Piston.
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