GE LOGIQ E9 Service Manual page 638

GE
D 5535208-100, R
IRECTION
8-11-9 Shear Wave Capacitor Pack replacement
Manpower /
Time
One person /
15 minutes
Table 8-183 Preparations and Preparation Links
RISK OF ELECTRICAL SHOCK, SYSTEM MUST BE TURNED OFF. AVOID ALL
WARNING WARNING
CONTACT WITH ELECTRICAL CONTACTS, CONDUCTORS AND COMPONENTS.
ALWAYS USE NON-CONDUCTIVE HANDLES DESIGNED FOR THE REMOVAL AND
REPLACEMENT OF ESD SENSITIVE PARTS. ALL PARTS THAT HAVE THE
POTENTIAL FOR STORING ENERGY MUST BE DISCHARGED OR ISOLATED
BEFORE MAKING CONTACT.
MAKE SURE THE LEDS ON THE CAPACITOR PACK ARE OFF BEFORE
DISCONNECTING THE CAPACITOR PACK CABLES. THE CAPACITOR PACK CAN
STORE UP TO 112 VOLTS.
IF THE SYSTEM IS GOING TO BE SERVICED, KEEP THE FOLLOWING
INFORMATION AND PRECAUTIONS IN MIND:
CHARGE INDICATORS:
• THE CAPACITOR MODULE HAS LEDS TO INDICATE IF THE CAPACITORS ARE
CHARGED OR NOT.
• ONLY REMOVE THE CABLES WHEN LEDS ARE OFF.
DISCHARGE TIMES:
• 4.7 SECONDS AFTER NORMAL SHUTDOWN.
• IF CABLES ARE PULLED WHILE THE SYSTEM IS ON, IT TAKES TYPICALLY 40
SECONDS TO REACH 60 VOLTS AND 5 MINUTES TO FULLY DISCHARGE (0 VOLTS).
DO NOT PLUG OR UNPLUG CABLES WHEN THE POWER IS ON.ONLY PLUG OR
UNPLUG CABLES WHEN THE POWER IS OFF.
Energy Control and Power Lockout for LOGIQ E9
NOTICE
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.
TAG
&
LOCKOUT
4. WAIT FOR AT LEAST 20 SECONDS FOR CAPACITORS TO DISCHARGE AS THERE ARE NO
Signed Date
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 WHEN
WORKING IN THE BEP. THIS SHOULD BE DONE WHENEVER THE BEP IS OPEN AND THE
EPS IS EXPOSED AND CHANGING PARTS.
Beware that the Main Power Supply, Extended Power Shutdown and BEP may be energized even
if the power is turned OFF if the cord is still plugged into the AC Outlet.
8 - 292
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EV
Table 8-182 Manpower / Time and Tools
Refer to: 8-2-5 "Tools needed for servicing the LOGIQ E9" on page
Preparations - you must perform the following steps
Section 8-11 - Peripherals replacement
LOGIQ E9 S
Tools
M
ERVICE ANUAL
8-5.