S
LOW
O
PERATION
FOR
M
AINTENANCE
P
URPOSES
OI 250 (EN)
REV7
/REV3
Locking the Undervoltage Releases
• If the spring mechanism is equipped with undervoltage releases
and if slow closing or opening operations are necessary, then the
undervoltage release must be locked.
If
Then
Undervoltage release has no lok-
king device
10 Locking device for undervolta-
ge release
Insert hook of locking device (10)
and pull out solenoid until it hits
the stop;
• then hand-tighten the nut
slightly.
Undervoltage release has inte-
grated locking device
• Turn the locking lever from
operation position to locking
position
10
Nut
Locking lever in operation positon
Locking lever in locking positon
Summary of Contents for GL 311 F3/4031 P/VE
Page 2: ......
Page 10: ...INTRODUCTION 10 146 OI 250 EN REV7 REV6...
Page 12: ...SAFETY 12 146 OI 250 EN REV7 REV3...
Page 48: ...INSTALLATION 48 146 OI 250 EN REV7 REV7...
Page 80: ...INSPECTION AND MAINTENANCE 80 146 OI 250 EN REV7 REV3...
Page 102: ...RECONDITIONING 102 146 OI 250 EN REV7 REV7...
Page 104: ...END OF LIFE MANAGEMENT 104 146 OI 250 EN REV7 REV2a...
Page 114: ...SPECIAL EQUIPMENT OPTIONAL 114 146 OI 250 EN REV7 REV0...
Page 128: ...REPLACEMENT PARTS AND ACCESSORIES 128 146 OI 250 EN REV7 REV6...
Page 130: ...HANDLING USED SULFUR HEXAFLUORIDE 130 146 OI 250 EN REV7 REV2...