ENERSYS SCR Transformer Type Battery Charger D3G

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

Connections and terminals are clean and tight

No excessive dirt build up on components

Any adjustments bumped or moved during cleaning?

Frequency of maintenance depending on the environment

WARNING: Faulty SCR/Diode Blocks may cause voltage to be present at the DC cables.

Start the charger, and run it for 5 minutes with a battery connected.

Turn off the charger and disconnect the battery.

Temperature of the SCR/Diode Blocks

WARNING: Heatsink and SCR/Diode Blocks may be very warm. Please exercise caution.

Warning: Ensure your hands are clean and you are grounded to avoid static discharge before touching a PC board.

Static discharged by touching a ground

EPROM removed without bending the legs

Removed EPROM placed in anti-static bag

New EPROM's notch aligned with socket's notch

New EPROM inserted without bending the legs

New EPROM's legs inserted into the proper holes

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:

Return all replaced components to your service center.

Reconnect all leads exactly as they were removed.

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

Use the wiring diagrams in the back of this manual to help identify wires connected to the transformer.

Remove the AC input wires from the 3 terminal input blocks.