Howard Small Power - Manual (Page 5)

Small Power Substation Transformers
Document 2.4.54 Revision 0
July 2006
5
Lifting
Lifting hooks are provided near the top of the
transformer tank for lifting. All four lifting hooks must
be used simultaneously. The transformer must not be
lifted from any points other than the provided lifting
hooks. It is recommended that spreader bars be used
to keep the lifting cables nearly vertical, reducing the
likelihood of tank deformation or damage to painted
surfaces. Transformers should be lifted in an upright
position, allowing no more than 15 degrees of tilt
from vertical. Lifting cables shall be no more than 20
degrees from vertical.
Jacking, Skidding, and Rolling
Jacking pads are provided at all four corners of the
transformer base for use in jacking. Do not use
cooling fins or pipes, valves, or sheet metal surfaces
for jacking. Jacking must be done from two adjacent
corners simultaneously to prevent warping of the tank
bottom. When rolling, use an adequate number of
rollers to distribute the transformer’s weight evenly.
Refer to the transformer outline drawing for the location
of jacking pads on the transformer tank.
HANDLING