R Eceiving, Han Dling An D Storag E; R Eceivi N G; H A N D L I N G; Sto Rag E - GE IAV51A Instructions Manual

volta g e ci rcu its a re opened . After the con necting p l u g has been removed, the lower l atch
can be rel eased and the cradle easi ly d rawn out. To replace the crad le, the reve rse o rd e r
sho u ld b e fo l lowed .
The cra d l e ca n be d rawn out from a double-ended case i n the sa me way, except t h at two
co n nect i n g p l ugs must be d rawn out fi rst.
R E C E I V I N G
Th ese re lays, w h e n not shi p ped a s a part o f a control panel, w i l l be sh i p ped i n ca rto n s
d esi g n ed t o p rotect them agai nst damage.
exa m i n ation should be made for a n y d a mage sustai ned d u ri ng shi pment. I f i nj u ry o r rou g h
h a n d l i ng i s evid ent, a d a mage cla i m sho u l d be fi led at o n ce with t h e tra n s p o rtati o n
com pa n y, a n d the nea rest General E lectric Sales Office sho u ld be notified p ro m ptly.

H A N D L I N G

Reaso n a b l e ca re sh o u ld b e exercised i n u n packing t h e relay i n o rd e r that n o n e of the p a rts
a re d a m a g ed nor the adj ustments d i stu rbed .

STO RAG E

If the re lays a re not to be i nsta l l ed i m med i ately, they sho u ld be stored i n the i r orig i n a l
ca rto ns i n a p lace that i s free from mo isture, d ust, a n d meta l l i c ch i ps.
I m med i ately u po n recei pt of the relay a n
made to m a ke sure that no damage h as been susta i n ed in sh i p ment and that the relay
ca l i b ratio n s have n ot been d istu rbed .
I f n o p i cku p va l ue for the left contact is specifi ed on the req u isiti on for the relays with ta p
b locks, the re lay is sh i p ped with the ta p p l u g i n the fifth ta p . If p icku p i s specifi ed , t h e ta p
p l u g i s set i n the ta p correspo n d i n g to this va l u e . If a specified va l u e d oes n ot co i ncide w ith
one of the ta ps, the ta p p l u g is put in the ta p nea rest the req u i red va l u e (th e lower ta p is
u sed if the va l ue is h a lf way between two ta ps) and the spri ng is adj usted to o bta i n the
req u i red p i cku p .
VISUAL I NSP ECTI ON
Check the n a me p l ate sta m p i n g the make su re that the model n u mber a n d rat i n g of t h e
relay a g ree with the req u isiti o n .
Every circu it i n the drawout case has a n auxil iary brush . It is especially i mportant o n
cu rrent ci rcu its, and other circu its with shorting ba rs, that t h e a u x i l i a ry brush b e
b e n t h i g h enough t o engage t h e connecting plug or test p l u g before the m a i n
brushes do. This wi l l prevent ct secondary circu its from b e i n g o p e n .
G E H-1 81 4

R ECEIVING, HAN DLING AN D STORAG E

ACCE PTANCE TE STS
I N SP ECTI ON
CAUTI ON
8
I m med iate ly u pon recei pt of the relay, a n
and ACC E PTANCE T E ST sh o u l d be