Tools; Trouble Shooting - GE AK-1-15 Instructions Manual

Air Circuit Breakers Type AX-I-15 and AX-1-25 GEH-1807
1/16"
5/64"
3/3~"
1/8"
5/16"
TOOLS
The tools listed below will adequately equip an
operator for any maintenance operation on all
types
and ratings of the AX air circuit breaker.
#1 J?hillips Screw Driver
#2 Phillips Screw Driver with 8" shaft
#S Phillips Screw Driver
K101-1/2 Crescent
(Shor~
Sc.rew Driver
K505-1/2 Crescent
(~ng
Thin) Screw Driver
KS06 Crescent (Standard) Screw Driver
H-28 ·8'i Gas PIleI'S
654 Pointed Nose Side Cutting 6" Pliers
#2 Waldes Truarc Pliers Straight
#2 Waldes Truarc Pliers 90
0
Angle
Ratchet Socket Wrench 1/2" Drive
7/16" - 1/2" Drive Socket
9/16" - 1/2" Drlve SoCket
5/8" - 1/2" Drive Socket
S/4" - 1/2" Drive Socket
lS/16" -. 1/2" Drive Socket.
15/16" - '1/2" Driver Socket
10" ExWnsion Bar 1/2" Drive
6" Extension Bar 1/2" Drive
8" Adjustable End Wrench
1/4" - 5/16" (Blue Point) Open End Wrench
1/2" - 9/16" Open End WJ;ench
5/8" - 3/4" Open End Wrench
3/8" - 7/16" Open End Wrench
11/32" - 5/16" Open End Wrench
Allen Head Wrench for #6 Screw
Allen Head Wrench for #8 Screw
Allen Head Wrench for #10 Screw
Allen Head Wrench for 1/4" Screw
Straight Shank Allen Head Wrench for 3/8"
screw, with adapter for 1/2" drive ratchet
8 oz. Ball peen hammer
5/8" 6 point open box wrench
3/8" Spintite
LUBRICATION
In general, the circuit breaker requires
moderate lubrication. Bearing points and latch
surfaces should be lubricated at the regular in-
spection periods with a thin film of extreme
temperature, high-pres.sure, light ~ease similar
!O
G. E. Spec. No. D50H15. Hardened grease and dirt
should be removed from latch and bearing surfaces.
by using kerosene. ALL EXCESS LUBRICANT
SHOULD BE REMOVED WITH A CLEAN CLOTH IN
ORDER TO AVOID ANY ACCUMULATION OF DmT
OR DUST.
o
TROUBLE SHOOTING
TROUBLE CAUSE
REMEDY
Overheating
Contacts not aligned. Adjust contacts.
Contacts dirty, greasy or coated
with
dark film.
Clean contacts.
Contacts badly burned or pitted. Replace contacts.
Current carrying surfaces dirty.
Clean surfaces of current
carrying parts.
Bolts and nuts at terminal connections not tight.
Tighten, but do not exceed
elastic limit of bolts or fittings.
Current in excess of breaker rating.
Decrease load, rearrange circuit
or install larger breaker.
Excessive ambient temperature.
Provide adequate ventilation.
Failure to Trip
Travel of tripping device does not provide
Re-adjust or replace trip unit.
positive release of tripping latch.
.
Worn or damaged trip unit parts.
Replace trip unit.
Binds in overioad device. Replace overload device.
False Tripping Overload pick-up too low.
Change adjustment or replace
with higher rated device•.
Overload time-setting
too
short.
Change adjustment or replace
with higher rated device.
Bind in overload device. Replace device.
Failure to Close Binding in attachments preventing resetting
Re-align and adjust attachments.
and Latch of latch.
Chipped or worn latch.
Replace latch.
Latch outof adjustment~
Adjust latch.