2
(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:
(1 ) Interlock operation, (2) proper door
closing, (3) seal and sealing surfaces
(arcing, wear, and other damage), (4)
damage to or loosening of hinges and
latches, (5) evidence of dropping or
abuse.
(c) Before turning on microwave power for
any service test or inspection within the
microwave generating compartments,
check the magnetron, waveguide or
transmission line, and cavity for proper
alignment, integrity, and connections.
d) Any defective or misadjusted compo-
nents in the interlock, monitor, door seal,
and microwave generation and transmis-
sion 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.
INSTALLATION INSTRUCTIONS
IMPORTANT:
BEFORE THE UNIT
IS
INSTALLED, INSPECT
THE
OVEN AND DETERMINE IF ANY
OF THE FOLLOWING DAMAGE
CONDITIONS EXIST.
1. The door does not close firmly against the
door support because the door is warped or
the hinge is damaged.
2. Either the door seals or the trim is dam-
aged.
3. If there is any visible damage to the oven.
If any of the above conditions exist, DO NOT
OPERATE THE OVEN. Call your local author-
ized service representative.
If none of the above conditions exist, proceed
with properly installing the oven.
A minimum clearance of 3” on both sides and 1”
on top and rear must be observed. This will
allow proper internal ventilation of the unit. Also,
do not remove the legs because of the possibil-
ity of restricting the ventilation.
This appliance is equipped with a three-prong
grounding plug for your protection against shock
hazard and must be plugged directly into a
properly grounded receptacle.
Use a properly polarized and grounded three
hole receptacle as is required by NATIONAL
ELECTRICAL CODES on all new construction.
NOTE: APPLIANCE MUST BE GROUNDED
For the safety of the user, it is required that all
major appliances requiring electricity for opera-
tion be electrically grounded
.
Check all code rules and regulations for connect-
ing the appliance to be certain the installation con-
forms with all local, municipal and state codes as
well as local utility regulations.
Where a two-prong wall receptacle is encoun-
tered, it is the personal responsibility of the user
to contact a qualified electrician and have it
replaced with a properly grounded three-prong
wall receptacle in accordance with the National
Electrical Codes.
DO NOT
use a two-prong adapter, since proper
grounding is not assured even if the ground wire
or metal tab is connected to the outlet box.
The use of an extension cord is not recom-
mended. However,if it is necessary to use an
extension cord, it must be a type s, with 3 num-
ber 16 wires and have a 3 prong grounded plug.
The extension cord should not drape over a
countertop where it can be pulled on or tripped
over accidentally.
Under no circumstances should the rounded
ground prong be removed from the plug.
Failure to comply with the above could result in
a serious shock hazard .
GENERAL INFORMATION
IMPORTANT:
BEFORE PROCEEDING,
THE FOLLOWING INFORMATION MUST BE
CAREFULLY READ TO
AVOID POSSIBLE
EXPOSURE TO MICROWAVE RADIATION.
Before servicing the oven, unplug the oven,
remove the cabinet and take a continuity read-
ing of the interlock switches to assure they are
operating properly.
Refer to the Component Test Section in this
service manual.
Also, it is very important to insure that the door
seals are not damaged. If a microwave leakage
instrument is available, check the oven for any
possible microwave leakage.
Do not operate the oven if the following condi-
tions exist.
1. The door does not close firmly against the
door support because of the door being
warped or the hinge is damaged.
2. The door seals or door trim are damaged.
3. If there is any visible damage to the oven.
Do not operate the oven if the front frame of the
oven is dirty or if the interlocks are loose.
Microwave leakage may be present if these
conditions exist.
Do not operate the oven if:
1. any door gaskets or trim surrounding the oven
door or control panel are missing.
2. the waveguide and oven cavity are not intact.
3. the door does not close properly.
Avoid operating the oven if known components
in the interlock,
oven door or microwave generating and trans-
mission assembly
are defective. They must be replaced.
After the above precautions have been taken,
proceed with nor-
mal repair procedures.
Remember
that high
voltage is present,
so use caution to avoid electrical shock.
MICROWAVE RADIATION TEST
NOTE:
A MICROWAVE LEAKAGE CHECK
SHOULD BE PERFORMED AFTER ANY
REPAIRS OR ADJUSTMENTS HAVE BEEN
MADE ON THE DOOR, FRONT FRAME
AND/OR INTERLOCK SWITCHES,
IMPORTANT:
IF THE READING IS OVER 2
mW/cm2, REFER TO THE DOOR AND INTER-
LOCK ADJUSTMENTS SECTION IN THIS MAN-
UAL. THE DOOR IS DESIGNED FOR LEAKAGE
OF LESS THAN 1 mW/cm
2
, ADJUSTMENTS
SHOULD BE MADE TO BRING ALL READINGS
TO BELOW 1 mW/cm
2
.
The microwave leakage measurement equip-
ment manufacturers presently acceptable are
NARDA, SIMPSON and HOLADAY. More infor-
mation on these units can be obtained from the
respective equipment manufacturers.
WARNING
ELECTRICAL GROUNDING INSTRUCTIONS
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE EX-
POSURE TO EXCESSIVE MICROWAVE ENERGY
