TM9-4120-400-14
e. Installation
d. Replacement
c. Removal
b. Inspection
a. Testing
This task covers:
INITIAL SETUP
Equipment Condition
Tools
Refrigeration Unit Service Tool Kit
Power Supply
Materials/Parts
Time Delay Relay
Self-locking Nuts (2)
Figure 4-24. Time Delay Relay K1
TESTING
1.
Connect multimeter to terminal A1 and A2 of relay K3.
Apply +28VDC to terminal 6 of TB1 and -28VDC to terminal X2 of K3.
2.
3 seconds after applying the 28 VDC.
3.
4.
Remove the 28VDC. The multimeter must show that contacts are open.
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