Merrychef eikon e6 - Manual (Page 5)

E6 SERVICE MANUAL REV C 06/12
5
CAUTION
WARNING TO SERVICE TECHNICIANS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING
SERVICING TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY
17 Do not operate or allow the oven to be operated with
the door open.
18 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.
19 Before turning on microwave power for any service
test or inspection within the microwave generating
compartments, check the magnetron, wave guide or
transmission line, and cavity for proper alignment,
integrity and connections.
20 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.
21 A microwave leakage check to verify compliance with
the Federal Performance Standard for the U.S.A. or
the Canadian Regulation, HEALTH AND WELFARE,
SOR/79 920 for Canada must be performed on each
oven prior to release to the owner.
IF SMOKE IS OBSERVED:
SWITCH OFF THE OVEN - DISCONNECT/ISOLATE
FROM THE ELECTRICAL SUPPLY -
KEEP THE OVEN DOOR CLOSED TO STIFLE ANY
FLAMES
WARNING:
ALWAYS DISCHARGE THE HT CAPACITORS BEFORE
WORKING ON THE OVEN USING A SUITABLY
INSULATED 10MO RESISTOR.
DANGER:
BEFORE REMOVING THE OVEN CASING, ISOLATE THE
OVEN FROM THE MAINS ELECTRICITY POWER
SUPPLY; SWITCH OFF, DISCONNECT OVEN PLUG
FROM WALL SOCKET, TURN OFF ISOLATOR SWITCH
TO DISCONNECT FIXED WIRED OVENS AND LOCK-
OFF.
SAFETY REQUIREMENTS
Important:
This manual provides technical guidance for engineers
who have successfully undertaken a recognized
product familiarization and training course run by
Merrychef to carry out service/repair tasks to the
appliance/s shown on the front cover of this manual
which must not be used for any other make or model of
appliance.
Please remember that it is wiser not to attempt a
service task if you are unsure of being able to complete
it competently, quickly, and above all safely.
To avoid injury to yourself or others and to protect the
appliance from possible damage, ensure you have read
and understand all the relevant instructions and
ALWAYS follow the Safety Codes when servicing an
oven.
Before attempting to repair the oven, check the oven for
microwave emissions using a calibrated microwave
emission detector.
Check that the oven is not emitting microwaves, even
when supposedly not in operation.
Check that the oven is not operating continuously,
whether the display indicates cooking or not.
Never manipulate the mains power lead whilst it is live.
Before removing the oven casing ALWAYS isolate the
oven from the mains electricity power supply; switch off
and disconnect the oven plug from the wall socket, turn
off isolator switch to disconnect fixed wired ovens.
NOTE: The oven switch does not provide adequate
protection against electric shock as it does not isolate
all of the internal wiring from the mains.
The equipment must be locked-off to prevent the oven
from being inadvertently powered up.
Do not leave the oven unattended without the oven
panels fitted and keep within sight of other personnel
when testing the oven, ensuring persons other than
trained engineers are denied access.
The minimum number of panels should be removed and
the HT capacitors must be discharged before working
on the oven using a suitably insulated 10 MΩ Resistor.
Temporary insulation should be used to prevent
accidental contact with dangerous conductors.
Do not touch any internal wiring within the Oven,
whether you believe it is live or not and avoid touching
the Metalwork (Casing, Panels, etc) of the Oven with
your Body.
Only use electrically rated screwdrivers for adjusting
‘Pots’ etc., ensuring the tool touches nothing else.
Ensure the Test Equipment is set correctly before use.
Test equipment such as meter test leads or clamps
must be fitted and removed whilst the unit is dead, for
each and every test.
Do not undertake functional Magnetron testing with the
oven panels removed.
Avoid touching the Test Equipment, unless necessary
for the operation.
Upon completion of a service follow the steps for
‘Commissioning the oven’ under the Commissioning
section of this manual.