A.B. CHANCE OVERHEAD SWITCHGEAR
SECTION F. MAINTENANCE INSTRUCTIONS
Following a periodic inspection and maintenance
program will prolong the life of the Switch. The
Switch is designed for long-term exposure to all
weather conditions. However, certain environments
may reduce its life without some type of periodic
maintenance. Minimum inspection and mainte-
nance specifications have been established. Follow-
ing them will help ensure long service life.
NOTE: It is recommended that all overhead
switchgear go through a maintenance check at least
once a year, more frequent if switch is in a contami-
nated area.
Step 3.
Check for eroded contacts, alignment, and corrosion
of the hot parts. Replace any damaged components.
Lubricate all contacts and arcing horns with Dow
Corning FS-1292 silicone grease or equal.
Step 4.
Inspect all controls, interphase, and moving parts for
damaged or worn-out parts. Replace any damaged or
worn-out parts.
Lubricate all control components with A.B. Chance
silicone spray Cat. #C400-1749 or equal.
Step 5.
Check and tighten all thru bolts and mounting
hardware.
Step 6.
Inspect all pins, rivets, and bolted connections.
Tighten all hardware and replace damaged or worn-
out parts.
Step 7.
Check insulators for cracks, breaks or burns. Re-
place any damaged insulators.
Step 8.
Bulletin 14-9310
P816-0652 Rev. A
© 1997 Hubbell/Chance, 210 N. Allen, Centralia, MO 65240
Printed in USA
NOTE: Because Hubbell has a policy of continuous product improvement, we reserves the right to change design and specifications without notice.
NOTICE
Check operation of the switch making sure over
toggle effect or wrap up still occurs when
closed. If not, readjust.
See Section B1 or B2.
Refer to ANSI C37.35 for additional recommenda-
tions. C37.35 is "IEEE Guide for the Application,
Installation, Operation, And Maintenance Of High-
Voltage Air Disconnection and Load Interrupter
Switches."
These instructions do not claim to cover all details or variations in equipment, nor to provide for all possible conditions to be met
with concerning installation, operation, or maintenance of this equipment. If further information is desired or if particular problems
are encountered which are not sufficiently covered in this guide, contact A.B. Chance Company.
Step 1.
When possible, open and close the switch several
times to clean the contact surfaces and loosen
moving parts.
Make sure interrupters or arc chutes are free and
operating properly.
Step 2.
Refer to section C, D or E and inspect the switch for
proper operating sequence.
WARNING —
Fiberglass Crossarms
!
Contact with the switch bases, mounting hard-
ware or crossarm could result in electrical shock.
Can cause severe injury or death.
Ground the switch bases, and mounting hardware
prior to performing adjustments or main work.
! CAUTION
!
A.B. Chance Company recommends that all main-
tenance work be performed on de-energized
switches. When working on live lines, follow your
utility's standard safe operating procedures.
®
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POWER SYSTEMS, INC.