BUG-O Systems CB-1P - Manual (Page 31)

31
SET-UP INSTRUCTIONS FOR CW-5 / CB-1P USED IN SPRINKLER FABRICATION
SUPPORTING FIXTURE AND PIPE STANDS
The first priority should be given to where the fixture is to be placed. The burning of the holes and welding of the
couplings should be the last part of the operation performed on the pipe. It is important that a flow pattern or line be
looked at, so that when the pipe is taken out of the fixture, it is finished and ready for shipment.
The mono rail consists of a 4" x 8" x 1/4" wall rectangular tubing with a 3/8" x 3" flat bar welded to the tubing (See
pg. 30). The flat bar has to project 1" above the top of the tubing. “C” clamps are to be used to hold the flat bar
against the tubing with no gaps. The “C” clamp may be walked down the tubing as it is being tack welded. If the
beam has a bow greater than 1/32" in a 30' span, take to following steps:
1. Determine exactly where the center of the bow is. This may be accomplished by putting a string along
the front side of the monorail. Place 1/2" nuts between the string and the monorail and measure the
gap between the string and the monorail. Always measure on the same side of the string.
2. After you have determined where center of the bow is, take a hand torch and heat the outside of the
bow. The outside of the bow should be the side the flat bar is welded to. Take a piece of chalk
and draw a triangle with a 2" base under the bottom of the flat bar with the top or point of the triangle
pointing down. Do the same on the top of the monorail against the flat bar with the top or point pointing
towards the face of the monorail. Heat these two areas so that they become cherry red in color. After
the heat has been applied, take a large rag and a bucket of water and cool the heated area. After the
area has been cooled, check the beam again. Repeat as necessary.
PIPE STANDS
The pipe stands consist of 3" pipe in floor flanges with a 2-1/2" or 3" angle welded to the top of the pipe, and they
should be spaced and aligned as shown (See pg. 30). The two stands should have some sort of clamping device
to hold the pipe in place. The clamping device can be anything from a pipe vise to a chain and boom. The clamping
device must be staggered.
After the pipe stands and supporting columns are in place, the monorail is to be placed on the supporting columns.
The pipe stands and the supporting columns must be level and plumb. These items may have to be shimmed. With
these items level, the monorail may be put in place on the supporting columns and held in place by two “C” clamps.
Put a level on the face of the beam in the vertical position and on the bottom in the horizontal position. The beam
should be level both ways, and if not, the beam will have to be shimmed. If the monorail has a twist, which may
occur, level one end so that the other end needs to be pulled back.
Next, put a piece of 8" pipe in the pipe stands and clamp down. Take a centering head and find the center of the
pipe on each end and in the middle. You can now use two methods to check to see if the monorail is aligned with
the pipe below. They are as follows:
1. Use a plumb bob off the face of the monorail and measure from the center of the pipe to the plumb bob.
The distance should be 5-11/16" in all three locations.
2. The second method is to put one carriage on the monorail and attach the CB-1P to it. With the center
pin in the burning machine, check all three locations. The burning machine must be plumb on the
carriage if this method is used.