Handling – Howard Small Power User Manual

Page 5

background image

Small Power Substation Transformers

Document 2.4.54 Revision 0

July 2006



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.