1. INSPECT RESISTANCE OF ISC VALVE
Using an ohmmmeter, measure the resistance between terminal 81 - SI or S3 and B2 - S2 or S4.
Resistance: 81 - S1 or S3 10 - 30 fl 82 - S2 or S4 10 - 30 ft
If resistance is not as specified, replace the ISC valve.
2. INSPECT OPERATION OF ISC VALVE
(a) Apply battery voltage to terminals B1 and B2 and while repeatedly grounding SI — S2 — S3 — S4 — S1 in sequence, check that the valve moves toward the closed position.
<b> Apply battery voltage to terminals B1 and B2 and while repeatedly grounding S4 — S3 — S2 — S1 — S4 in sequence, check that the valve moves toward the open position.
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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.