Sharp R-21JCA-F Door Parts Removal, After adjustment, check the following, Choke Cover

R-21JCA-F

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.)

Handle	Latch Head
Lever
		Latch Hook
Door		Latch Switch
Handle		Lever A
Latch		Secondary
		Interlock
Lever
		Switch
		Latch Switch
		Lever B
Latch Head		Monitor
		Switch
	Latch Switch	Door
	Lever C	Sensing

Switch

Figure C-5. Latch Switch Adjustments

DOOR PARTS REMOVAL

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.

Choke Cover

Putty Knife

Door Frame

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.

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".).

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