GE LOGIQ E9 Service Manual page 596

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5535208-100, R

Main Power Supply Fan Assembly replacement

This procedure only applies to Cherokee/Mitra Main Power Supplies. The fan assembly for

Lambda Power Supplies is not serviceable.

One person, 45 minutes.

For tools needed, refer to:

Preparations

When preparing for the replacement, you must perform the following steps:

Energy Control and Power Lockout for LOGIQ E9

WHEN SERVICING PARTS OF THE SYSTEM WHERE THERE IS EXPOSURE TO VOLTAGE

GREATER THAN 30 VOLTS:

1. TURN OFF THE SCANNER.

2. UNPLUG THE SYSTEM.

3. MAINTAIN CONTROL OF THE SYSTEM POWER PLUG.

4. WAIT FOR AT LEAST 20 SECONDS FOR CAPACITORS TO DISCHARGE AS THERE ARE NO

TEST POINTS TO VERIFY ISOLATION. THE AMBER LIGHT ON THE OP PANEL ON/OFF BUTTON

WILL TURN OFF.

5. DISCONNECT THE EPS (EXTENDED POWER SHUTDOWN) BATTERY AT J3, OR THE

BATTERY FROM THE CHARGEBOARD AT PCN1 WHEN WORKING IN THE BEP. THIS SHOULD

BE DONE WHENEVER THE BEP IS OPEN AND THE EPS OR CHARGEBOARD IS EXPOSED AND

CHANGING PARTS.

Beware that the Main Power Supply, Extended Power Shutdown or ChargeBoard and BEP may be

energized even if the power is turned OFF if the cord is still plugged into the AC Outlet.

1.) Power down the system

2.) Disconnect the mains power cable from the wall outlet and all Probes and External I/O Cabling.

3.) Remove both Side Covers, the Top Cover, the Rear Bumper and the Rear Cover.

4.) Remove the Main Power Supply.

Follow these links if you need more information:

4-2-3 "Power shut down" on page 4-7.

8-5-2 "Side Covers replacement" on page 8-30.

8-5-4 "Top Cover replacement" on page 8-38.

8-5-11 "Rear Cover replacement" on page 8-54.

8-10-2 "Main Power Supply replacement" on page 8-244.

8-2-5 "Tools needed for servicing the LOGIQ E9" on page

Section 8-10 - Main Power Supply parts replacement