Receiving, Handling, Storage; Acceptance Tests; Visual Inspection; Mechanical Inspection - GE CEY51A Instructions Manual

GEK-i27S
RECEIVING, HANDLING AND STORAGE
These rel ays, when not i ncl uded as pa rt of a control panel, wi 11 be shi pped in
cartons designed to protect them against damage. Immediately upon receipt of a relay,
examine it for any damage sustained in transit. If injury or damage resulting from
rough handling is evident, file a damage claim at once with the transportation
company and promptly notify the nearest General Electric Sales Office.
Reasonable care should be exercised in unpacking the relay in order that none
of the parts are injured nor the adjustments disturbed.
If
the relays are not to be installed immediately, they should be stored in
their original cartons in a place that is free from moisture, dust and metallic
chips. Foreign matter collected on the outside of the case may find its way inside
when the cover is removed, and cause trouble in the operation of the relay.
ACCEPTANCE TESTS
Immediately upon receipt of the relay, an inspection and acceptance test should
be made to make sure that no damage has been sustai ned in shi pment and that the
relay calibrations have not been disturbed.
If
the examination or the test
indicates that readjustment is necessary, refer to the section on SERVICING.
VISUAL INSPECTION
Check the name~ate stamping to make sure that the mod~ number and rating of
the relay agree with the requisition.
Remove the relay from its case and check that there are no broken or cracked
molded parts or other signs of physical damage, and that all screws are tight.
MECHANICAL INSPECTION
1. It is recommended that the mec hani cal adj us tments in Tabl e V II I be checked.
2. There should be no noticeable friction in the rotating structure of the units.
3. Make sure control springs are not deformed and spring convolutions do not touch
each other.
4. With the relay well-leveled in its upright position, the contacts of all three
units must be open. The moving contacts of the units should rest against the
backstop.
5. The armature and contacts of the seal-in unit should move freely when operated
by hand. There should be at least 1/32 inch wipe on the seal-in contacts.
6. Check the location of the contact brushes on the cradle and case blocks against
the internal connection diagram for the relay.
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