ENERSYS SCR Transformer Type Battery Charger SD3G

Disconnect the battery and AC power before starting the test.

You will be testing the diode to see if it is shorted.

Three phase input wires to the SCR/Diode Blocks disconnected

Meter's negative lead connected to the input connection of the SCR/Diode Block

Meter's positive lead connected to the - bussbar

Return all replaced components to your service center.

The following sections explain how to replace each component. After replacing a component, be sure to:

1. Reconnect all leads exactly as they were removed,

2. Replace any heat-shrink tubing if any old tubing was removed,

Please follow these steps before removing or replacing any component:

Verify that the mounting wire is sound--properly screwed on and not broken

Verify that the Snubber assembly is not burned, broken, or smoking.

To test the snubber assembly, disconnect a mounting wire and check for no continuity

Replace if your meter reads less than 200k ohms.

Sign off on the Snubber Assembly Test

Warning: Ensure both the AC lines and the battery are disconnected before cleaning.

Connections and terminals clean and tight

No excessive dirt build up on components

Any adjustments bumped or moved during cleaning

Frequency of maintenance depending on the environment

Return all replaced components to your service center.

The following sections explain how to replace each component. After replacing a component, be sure to:

1. Reconnect all leads exactly as they were removed,

2. Replace any heat-shrink tubing if any old tubing was removed,

Please follow these steps before removing or replacing any component: