OnLine Power PBC I - Manual (Page 35)

SECTION 4 - SERVICING THE POWER BACK-UP CABINET
4-1 The modularity of internal componets.
• The two basic physical assemblies are the Electronic Tray and Battery Tray.
• Each can be removed for servicing or repair, your spare assembly can be installed in minutes.
• Illustration 4.1 shows the location of Hold Down Bolts which hold the trays in place.
• Read the removing and replacing of Electronic Tray or Battery Trays on page 24 and 25.
Electronic Tray
Door Switch, Intrusion Alarm
External Padlock
CB 2 Battery Breaker
Battery Tray
BATTERY
CB 2
BATTERY
FAN
TB 1 TB
2 TB
3
BATT
Shims & hold down bolts
SHIMS CLEAR & CORAL
Retaining Bolts,
Split Lock Washer &
Flat Washer.
One each is required on
each side of the electronic
tray & battery tray.
Torque bolts to 76 in/lbs.
ILLUSTRATION 4-1 :FRONT VIEW OF POWER BACKUP CABINET
4-2 Servicing shall start with safety.
DANGER
• Turn CB 2 to “ OFF ”, next Turn your AC Input to “ OFF ” LOCK and tag out of service with digital meter, check
all terminals of TB 1 and TB 2 for any voltage.
• With CB 1 and CB 3 turned “ OFF ”, recheck all terminals of TB 1 and TB 2 and the cabinet to ground
should be Zero voltages.
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