ITT Goulds Pumps VIS, Инструкции по установке, эксплуатации и обслуживанию

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b) Cut off the motor leads to equal length. Clean off the ends of the leads for about a foot, using a
cloth wet with gasoline or solvent. Clean the end of the power cable also. Insert the three motor
leads into the corresponding holes in the bottom of the rubber casing and push them several
inches out the top. Crimp the motor leads into the corresponding connectors, crimping the cen-
ter one first. Bend the cables into line with the holes in the casing and slip the casing up until
the connectors are inside the holes and about ¼" from the top.
c) Mix the resin as directed, but squeeze the bag lightly when mixing, since it may rupture if too
much pressure is applied. Cut off a corner of the bag and squeeze all of the resin into the cas-
ing. With the roll of tape at hand, fold the bag, and tape the top of the bag snugly to the power
cable until the resin runs out over the top. This will assure maximum coverage of the resin and
minimum size of the finished splice. It is not necessary to tape over the top of the casing, since
the resin will seal it. When the resin is firm to the touch, the splice may be immersed for testing
or for final installation.
d) Since the power cable is usually larger than the motor leads, it may be necessary to cut some
of the strands of the larger cable and to fill out the smaller leads by bending some of the
strands double. The use of the proper crimping tool is advised, but if one is not available, a
sound connection can be made by flattening the connectors with a ball peen hammer and mak-
ing one or two indents with a center punch. Avoid crushing the ends of the connectors since
this may cause them to split open.
After splicing is completed, wet the splice and check resistance to ground. This can be achieved in
the following manner:
3. Attach one pole of the megger to ground and the other pole of the megger to any one of the motor
leads.
CAUTION:
The minimum reading for each lead to ground should be 50 megohms.
4. To check phases for continuity, connect the megger poles to two of the three leads, altering until all
three pairs of leads have been checked. Megger readings should all be zero, which indicates con-
tinuous circuit.
NOTICE:
Such a resistance check should be performed during and immediately after the completion of
installation.
5.5 Energizing the Motor
• Secure the pump and motor with chain tongs to resist torque. Energize the motor momentarily (on
and immediately off) to check the rotation.
NOTICE:
Rotation will be counterclockwise when viewed from the discharge bowl.
• If rotation is wrong, interchange any two of the motor leads at the control panel.
CAUTION:
Correct rotation is of extreme importance. Excessive overloads may be developed under oper-
ating conditions with reverse rotation.
5.5 Energizing the Motor
18 VIS Installation, Operation and Maintenance Instructions