54 | Flameproof motors
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b.
Assemble the rotate device in the top
of the terminal box fixing the 6 bolts;
NOTE
This device is not supplied as
standard. WEG can provide it as
option.
c.
Turn the PTB 90º to cable entry at
right side seen from DE side;
Figure 8-15 - Turn of the PTB with rotate device
d.
Remove the rotate device;
Reassemble the PTB
a.
Bolt the PTB to the adapter with the 8
bolts (the same bolts that originally fix
the PTB)
Assemble the PTB cover:
a.
With the lifting device and magnet,
slowly down the PTB cover, assuring
that PTB and PTB cover cylindrical
joints are centered;
b.
Bolt the PTB cover to the PTB with the
8 bolts (the same bolts that originally
fix the PTB cover).
Rotate the PTB can be difficult due to thermal
variations of the Power Terminal Box and Adapter
cylindrical joints.
ALTERNATIVE PROCEDURE TO ROTATE THE
POWER TERMINAL BOX (EXAMPLE FOR 90º
CCW SEEN FROM TOP OF PTB):
Remove the PTB cover:
a.
Unbolt the PTB cover - 8 bolts;
b.
Install a magnet in the center of PTB
cover;
c.
Pull the magnet to remove the PTB
cover;
Loose the PTB:
a.
Unbolt the PTB
– remove the 8 bolts
inside terminal box;
b.
Fix two eyebolts in the fixing holes of
the terminal box;
c.
Clamp the lifting device in the two
eyebolts;
d.
Lift the PTB 60mm, keeping always
horizontal.
Figure 8-16 - PTB lifted
Rotate the PTB:
a.
Carefully rotate the PTB, always
horizontal levelled, 90º CCW seen
from top of PTB.
Reassemble the PTB:
a.
Slowly down the PTB, assuring that
PTB and adapter cylindrical joints are
centered;
b.
With the PTB settled in the adapter;
c.
Bolt the PTB to the adapter with the 8
bolts (the same bolts that originally fix
the PTB)
Assemble the PTB cover:
a.
With the lifting device and magnet,
slowly down the PTB cover, assuring