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HOMESERVICE MANUALSMERCURY1966S-55 7.0L ENG VIN P, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCHARGING SYSTEMSALTERNATORS - TRANSISTORIZED REGULATORTESTINGFIELD RELAY
1966 Mercury S-55 7.0L Eng VIN P, Automatic Trans

Field Relay

1966 Mercury S-55 7.0L Eng VIN P, Automatic TransSECTION Field Relay

With relay disconnected from alternator and regulator circuits, make test connections as shown in illustration. With field rheostat control in maximum counterclockwise position, slowly rotate control clockwise until test light comes on, note voltmeter reading at this point

CAUTION: (If relay closes immediately and test light comes on with rheostat close to maximum counterclockwise position, press red button between meters and repeat test. If closing voltage is not within limits (see Specifications), replace relay.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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