Quantcast EXPLOSION PROOF DISTRIBUTION BOX A3 COMPONENTS - cont - TM-10-6640-239-13_174

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TM 10-6640-239-13 4-41 INSTALL 1. Install Timer Relay A3K1 or A3K6.  See Figure 4-9. Timer relay A3K1 or A3K6 (10) is installed by simply aligning relay pins with socket (11) and plugging the relay into socket. 2. Install Relay A3K2 or A3K5. a. Install relay A3K2 or A3K5 (19) on relay mounting plate (15) and secure with two screws (16), lockwashers (17), and washers (18). b. Connect wires as tagged to relay A3K2 or A3K5 (19) using terminal screw (20).  Remove tags. c. Install relay mounting plate (15) into distribution box (5) and secure with four screws (12), lockwashers (13), and washers (14). 3. Install Terminal Board TB1. a. Install terminal board TB1 (21) and secure with two screws (22), washers (23), self locking nuts (24), and terminal board marker strip (25). b. Connect wires as tagged to terminal board TB1 (21).  Remove tags. 4. Assembly Explosion Proof Distribution Box A3. a. Install cover (9) on distribution box (5) and secure with 28 screws (6) lockwashers (7), and washers (8). b. Install access panel (4) and secure with 18 screws (1), lockwashers (2), and washers (3). c. Run operational test to verify components.


 


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