Special Operations - Vertical Fusion (Movable Pipe Below)
4 - 5
Check Alignment
Move the carriage until ends of pipe butt together.
Check pipe joint for proper alignment.
Do not use finger to check for HI/LO (misalignment). The unit
is under pressure, and slippage could result in crushed fingers.
Always keep hands clear of the jaw area.
If pipe is not lined up, tighten the inner jaw on the high side to bring into
alignment.
IMPORTANT:
Always tighten the side that is higher, never loosen the low side.
When the pipe is properly aligned tighten outside clamps to insure against
slippage.
Ensure there is no unacceptable gap between the pipe ends. If there is an
unacceptable gap or if the clamp knobs were tighten, insert facer and reface.
NOTICE:
When clamping, do not over-tighten the clamp knobs because machine
damage can result. Check to see if there is space between the upper and lower
jaws. If the two jaws are touching, do not continue to tighten.
TX04824-11-18-15
CD013
39-10
-5-15
CD013
54
-10
-5-15
Set Hydraulic Pressures
The weight of the bottom pipe will be pulling down on the carriage. This
extra force must be taken into account when setting pressures for vertical
fusion.
Set Heating (Drag) Pressure:
1) Open carriage so pipe ends are approximately 2" (50.8mm) apart.
2) Shift pressure selector to heating (drag) pressure.
3) Turn the heating pressure reducing knob to its lowest setting.
4) Move carriage directional control to the close position.
5) Turn the pressure reducing knob up until the carriage starts moving then
back off until the carriage stops.
6) Repeat steps 1-5 to confirm heating (drag) pressure.
The heating pressure will represent the same as drag pressure on a horizontal
fusion.
NOTICE:
Setting the proper heating (drag) pressure will prevent the carriage from
moving away or moving toward the fusion joint resulting in a improperly made
fusion joint.
Set Fusing Pressure:
To calculate the vertical fusion pressure, calculate the
theoretical fusion pressure and add the heating pressure. The heating pressure
must be added or the weight of the pipe will pull the carriage away from the
fusion joint.
Vertical Fusion Pressure = Theoretical Fusion Pr Heating (Drag) Pressure.
TX04825-05-05-16
CD014
34
-11-18-15
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DIRECTIONAL
CONTROL
VALVE
FACING
PRESSURE
HEATING
PRESSURE
FUSING
PRESSURE
SELECTOR
VALVE
FUSES
MOTOR
POWER
SUPPLY
CD018
92
-12
-0
7-16
Acrobat HPU
DynaMc EP HPU
Содержание A714201
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