(a) Measure the resistance between terminals as follows. Resistance: 1 - 3 Approx. 68Q 2 - 3 Approx. 30Q
(b) Connect the positive (+) lead from the battery to ter minals 1 and 2, and the negative (-) lead to terminal 3.
(c) Slowly apply vacuum from 0 to 300 mmHg (0 to
11.81 in. Hg, 0 to 40.0 kPa), check that the control cable can be pulled smoothly.
(d) With the vacuum stabilized, check that the control cable does not return. HINT: As you apply and hold the vacuum with the vacuum pump, the drawn-in diaphragm will in some cases return. This does not indicate a malfunction. Actuator leakage is allowable.
(e) Disconnect terminal 1 or 2 and check that the control cable returns to its original position and the vacuum returns to 0 mmHg (0 in.Hg, 0 kPa). If operation is not as specified, replace the actuator.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.