R-21HT-F
R-21JV-F
30
CHOKE COVER
1. Disconnect the power supply cord.
2. Open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into the gap
between the choke cover and door frame as shown in
Figure C-6 to free engaging parts.
4. Pry the choke cover by inserting a putty knife as shown in
Figure C-6.
5. Release choke cover from door panel.
6. Now choke cover is free.
NOTE: When carrying out any repair to the door, do not
bend or warp the slit choke (tabs on the door
panel assembly) to prevent microwave leakage.
Figure C-6. Door Disassembly
7. Release two (2) pins of door panel from two (2) holes of
upper and lower oven hinges by lifting up.
8. Now, door sub assembly is free from oven cavity.
DOOR PANEL REMOVAL
9. Remove the four (4) screws holding the door panel to the
door frame.
10. Release door panel from seven (7) tabs of door frame by
sliding door panel downward.
11. Now, the door panel is free.
DOOR HANDLE REMOVAL
12. Release the latch spring from the tab of the latch angle
assembly.
DOOR PARTS REMOVAL
After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when in the
latched position. First check upper position of latch hook,
pushing and pulling upper portion of door toward the oven
face. Then check lower portion of the latch hook, pushing
and pulling lower portion of the door toward the oven face.
Both results (play in the door) should be less than 0.5mm.
2. The door sensing switch and secondary interlock switch
interrupt the circuit before the door can be opened.
3. Monitor switch contacts close when door is opened.
4. Re-install outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Figure C-5. Latch Switch Adjustments
13. Remove the two (2) screws holding the door handle and the
latch angle assembly through the door frame.
14. Now, door handle is free.
LATCH HEADS REMOVAL
15. Remove the one (1) screw holding the latch angle assembly
to the door frame.
16. Remove the latch angle assembly together with the latch
lever, latch spring and the upper and lower latch heads from
the door frame.
17. Release the latch lever together with the latch spring and
the latch heads from the latch angle assembly.
18. Release the two (2) latch heads from the latch lever.
19. Now, the upper and lower latch heads are free.
FRONT DOOR GLASS OR SEALER PLATE REMOVAL
(After DOOR PANEL REMOVAL
)
12. Remove the four (4) screws holding the glass stopper U to
the door frame and remove the glass stopper U.
13. Remove the two (2) screws holding the glass stopper R to
the door frame and remove the glass stopper R.
14. Slide the front door glass and the sealer plate left at first and
then slide upwards to release them from the tabs holding it.
17. Now, the front door glass or the sealer plate free.
DOOR CASE REMOVAL
(After DOOR PANEL REMOVAL
)
12. Straighten all tabs of the door case holding the door case to
the door frame.
13.Release door case from the door frame.
17. Now, the door case is free
NOTE: At this moment, the door badge is attached on the
door case.
RE-INSTALL OF THE DOOR
1. Re-install all door parts except the choke cover.
2. Catch two (2) pins of door panel on two (2) holes of upper
and lower oven hinges.
3. Re-install choke cover to door panel by pushing.
NOTE: After any service to the door;
(A) Make sure that door sensing switch and secondary
interlock switch are operating properly. (Refer to
chapter "Test Procedures".).
Latch Hook
Latch Switch
Lever A
Latch Switch
Lever B
Latch Switch
Lever C
Latch Head
Latch Head
Handle
Lever
Door
Handle
Latch
Lever
Secondary
Interlock
Switch
Monitor
Switch
Door
Sensing
Switch
Putty Knife
Door Frame
Choke Cover
