TIA WAVEJET - User Manual

WAVEJET MICROWAVE OVEN
COMPONENT MAINTENANCE MANUAL
WITH ILLUSTRATED PARTS LIST
25-30-43
Page 501
March 15, 2003
INSPECTION/CHECK
1. Microwave Oven Inspection
A. Inspect wiring and connection points for damage, deteriorated insulation, or loose
wires.
B. Inspect oven and chassis for loose/missing screws, rivets and connectors.
C. Inspect facia panel for legibility of lettering, visibility of lamps and proper numeric
display.
D. Inspect oven door for warping or cracks and that the door closes and latches
properly.
E. At 1500 airframe hour or 6 month intervals, inspect oven door for the condition of
gasket, corrosion, adhesion problems or other damage. Refer to door gasket
replacement procedure in the assembly section if replacement is necessary.
F. At 1500 airframe hour or 6 month intervals, inspect the Waveguide Moisture
Cover, shown in Figure 501, located in the oven cavity for damage from excessive
arcing, i.e., burn marks. If damage is found, contact TIA. (SB-MW-003)
2. Microwave Oven Checks
A. Microwave Functional Check
1. Power Output Test: Performed to determine if the microwave oven is heating
to specification.
a. Fill a microwave safe container with 1 liter of water exactly.
b. Using the thermometer, measure the temperature of the water.
c. Put water container into the microwave. Heat the water for 65 seconds.
d. Using the thermometer, measure the water temperature after Step C.
e. Record the difference in water temperature from the beginning of the test to
the end of the test. The temperature rise indicates the power output for the
microwave. 8º F is the minimum acceptable temperature rise.
2. Carousel Operation:
Observe the operation of the carousel through the door
of the microwave. The tester should observe that the carousel turns when
the microwave is in operation.

Summary

Microwave Oven Inspection Procedures

Wiring and Connection Inspection

Check wiring and connection points for damage, deteriorated insulation, or loose wires.

Chassis and Fastener Inspection

Inspect oven chassis for loose/missing screws, rivets, and connectors.

Facia Panel and Display Check

Inspect facia panel for legibility of lettering, lamp visibility, and numeric display.

Door and Latch Integrity

Check oven door for warping, cracks, and ensure it closes and latches properly.

Door Gasket Condition Check

Inspect door gasket at 1500 airframe hours/6 months for damage, corrosion, or adhesion issues.

Waveguide Moisture Cover Check

Inspect waveguide cover at 1500 airframe hours/6 months for arcing damage or burn marks.

Microwave Oven Operational Checks

Power Output Test

Measure water temperature rise to determine if microwave heating meets specifications.

Carousel Operation Verification

Observe that the carousel turns correctly when the microwave is in operation.

Interlock Switch Functionality

Check interior lights turn ON with door open, and OFF when the door is closed.

Control Panel Button Operation

Verify that the On/Off, Plus, and Minus buttons operate correctly.

Optional Altitude Switch Check

Altitude Switch Test Port Identification

Locate the Altitude Switch Test Port on the rear panel of the microwave oven.

Vacuum Source Connection

Connect a calibrated vacuum source to the Altitude Switch Test Port.

8,400 Feet Altitude Simulation

Apply 556 mmHg vacuum; check if oven heats water and turntable turns.

10,100 Feet Altitude Simulation

Apply 523 mmHg vacuum; check if oven does not heat water and turntable does not turn.

TIA WAVEJET Specifications

General

Brand	TIA
Model	WAVEJET
Category	Microwave Oven
Language	English