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5) Mounting procedure for flameproof universal elbow
The procedure for mounting the flameproof universal elbow is shown below.
Step Procedure
1
Align the end surface of the lock nut with the end surface of the
O-ring groove as shown below.
Elbow
Lock nut
O-ring
Lock nut end face
O-ring groove
end surface
Figure 2-26 Arrangement of lock nut and O-ring
2
Screw the flameproof universal elbow into the terminal box
conduit connection port until the lock nut end surface hits the
connection port end surface.
When two elbow are used, at first, screw the first elbow into the
terminal box. Next, screw the second elbow into the terminal box
in the reverse direction to the first elbow.
Handling Precautions:
Apply adequate waterproofing to these parts.
3
Turn the flameproof universal elbow to loose in the desired
direction.
Handling Precautions:
Do not loosen it more than 1 turn.
4
Lock the flameproof universal elbow in place by tightening down
the lock nut using the special tool.
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