13
VE414
6a.
When the roll grooving application
requires only use of the right hand stabilizer,
advance its roller inward with the handwheel
to the position shown in Figure 4b, then
tighten its locking handle. The right hand sta-
bilizer will not require further adjustment on a
given pipe size and thickness. Pipe of the same
size and wall may be moved in and out of the
tool without retracting the right hand stabi-
lizer.
6b.
When roll grooving short lengths or pipe
sizes smaller than 8" NPS, retract and keep the
left hand stabilizer out of the way as indicated
in Figure 4a. This will make it easier to move
pipe in and out of the tool.
6c.
When the pipe size and length requires the
use of the left hand stabilizer (see Figure 4a),
advance its roller to within
¹⁄₂
" of the pipe, but
do not tighten the locking handle. When roll
grooving over 10' lengths of a 10" or larger
pipe, the condition of the pipe seam may
induce sway when the seam passes through
the grooving rolls. If sway is pronounced while
grooving the pipe, the left stabilizer must be
utilized by bringing the wheel against the pipe.
6d.
After completing the groove, if utilized,
retract the left hand stabilizer about
¹⁄₂
" before
withdrawing pipe from tool.
Figure 4b
CORRECT
INCORRECT
7.
Prepare to support pipe and flip toggle
switch to “Normal Operation”. Upper roll
assembly will return to its upper position and
pipe will release.
GROOVE DIAMETER STOP
ADJUSTMENT/SELECTOR
VALVE SETTING
The groove diameter stop must be adjusted for
each pipe size or change in wall thickness.
Groove diameter, identified as the “C” dimen-
sion for each pipe size, is listed under Standard
Roll Groove Specifications on pages 35 - 38.
To achieve proper diameter:
1.
Determine the size and thickness of pipe to
be grooved. See pipe dimensions on page 39 to
determine proper schedule.
Do not adjust stabilizers to push pipe to the left and off
center from the rolls. Doing so will cause increased
pipe end flare and shorten roller life.
• Assembly of couplings on pipe exceeding Maximum
Allowable Flare, Column 8 in the Roll Groove
Specifications charts, pages 35 - 38, may prevent
closure of couplings pad-to-pad, allowing possible
pipe separation and result in property damage.
• Also, joint leakage may result due to excessive
gasket distortion/damage.
• Use the “Jog” mode only for pre-operation
adjustments of the tool.
• Always return switch to “Normal Operation” at the
completion of the pre-operation adjustments.
• When tool is left in “Jog” mode with power on, pipe
gradually releases which may result in pipe falling
out of tool.
Failure to follow this instruction may cause personal
injury, product or property damage.
NOTICE
To perform the following adjustments, use several
short scrap sections of pipe (but not shorter than what
is recommended in Table 1, page 9) of the proper
material, diameter and thickness to be grooved.
