4. PRECAUTIONS TO BE
OBSERVED BEFORE AND
DURING SERVICING TO AVOID
POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE
ENERGY
(a) Do not operate or allow the oven to be operated with the
door open.
(b) Make the following safety checks on all ovens to be
serviced before activating the magnetron or other
microwave source, and make repairs as necessary:
interlock operation, proper door closing, seal and
sealing surfaces (arcing, wear, and other damage),
damage to or loosening of hinges and latches, evidence
of dropping or abuse).
(c) Before turning on microwave power for any service test
or inspection within the microwave generating
compartment, check the magnetron, wave guide or
transmission line, and cavity for proper alignment,
integrity and connection.
(d) Any defective or misadjusted components in the
interlock, monitor, door seal, and microwave generation
and transmission systems, shall be repaired, replaced,
or adjusted by procedures described in this manual
before the oven is released to the owner.
(e) A microwave leakage check, to verify compliance with
the Federal Performance Standard, should be
performed on each oven prior to release to the owner.
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