RIDGID 918-I Manual página 11

roll rotates in a clockwise direction matching the
pipe rotation decal on the groover, See Figure 12.
Have the machine serviced if it rotates in the wrong
direction or if the foot switch does not control its
stopping or starting.
• Depress and hold the foot switch. Inspect the mov-
ing parts for misalignment, binding, odd noises or
any other unusual conditions that may affect the
safe and normal operation of the machine. If such
conditions are present, have the roll groover ser-
viced.
• Release the foot switch.
10. Move the ON/OFF Switch to the OFF position, and
with dry hands unplug the machine.
Operation
WARNING
Keep hands away from grooving rolls. Do not wear
loose fitting gloves. Fingers can be crushed between groove
rolls, groove roll and pipe or between pipe and stabilizer wheel.
Keep hands away from ends of pipe. Do not reach
inside pipe. Do not touch groove while operating.
Burrs and sharp edges can catch and cut. Fingers can be
crushed between groove rolls or between groove rolls and pipe.
Keep guards in place. Do not operate the roll
groover with the guard removed. Exposure to groove
rolls may result in entanglement and serious injury.
Only groove pipe 8" (200 mm) or longer. Grooving
shorter than specified pipe can result in entanglement and
crushing injuries.
Do not use this roll groover without a foot switch.
Never block a foot switch in the ON position so it
does not control the machine. A foot switch provides
better control by letting you shut OFF the machine motor by
removing your foot. If entanglement should occur and power is
maintained to the motor, you will be pulled into the machine. This
machine has high torque and can cause clothing to bind around
your am or other body parts with enough force to crush or break
bones or cause striking or other injuries.
Be sure that the roll groover, pipe and stands are
stable. Be sure the roll groover is properly set up and secured.
This will help prevent tipping of the equipment and pipe.
Properly support the pipe. This will help to prevent the tipping
of the pipe and equipment.
Always wear eye protection. Wear steel toe footwear to
help protect from tipping tools and falling pipe.
Set up and operate the roll groover according to
these procedures to reduce the risk of injury from
machine tipping, entanglement, crushing, striking
and other causes, and to help prevent equipment
damage.
Confirm that the machine and work area is properly set
999-998-676.10_REV. D
918-I Roll Groover
up and that the work area is free of bystanders and other
distractions. The operator should be the only person in the
area when the machine is operated.
Pipe Preparation
These are generalized instructions. Always
NOTICE
follow grooved coupling manufacturer's specific recom-
mendations for pipe end preparation. Failure to follow
these recommendations may lead to an improper con-
nection and cause leaks.
1. Be aware of pipe specifications acceptable for groov-
ing. Out of specification pipe can cause leaks and
other issues. Pipe out-of-roundness must not exceed
total O.D. tolerance listed in the Standard Roll Groove
Specifications, Table II.
2. Cut pipe to proper length. Be aware of the minimum
pipe lengths for grooving.
• 5" and smaller diameter pipe should not be shorter
than 8" (200 mm) long.
• 6" to 12" diameter pipe should not be shorter than
10" (250 mm) long.
Grooving shorter pipe increases the risk of injury from
crushed fingers and entanglement.
3. Make sure pipe end is cut square and free of burrs.
Burrs can catch or cut gloves or fingers during groov-
ing. Cut off method and large burrs can affect the
quality of the groove made and tracking of the groover.
Do not attempt to groove pipe that has been cut with
a torch.
4. Remove all internal/external weld beads, flash, seams,
scale, dirt, rust and other contaminants at least 2"
back from the end of the pipe. Do not cut flats into gas-
ket seat area, this could cause leaks. Contaminants
can clog the drive knurls and prevent proper driving
and tracking of the pipe while grooving.
Advance/Retract The Groove Roll
The movement of the groove roll is controlled by the hy-
draulic pump.
• To advance the groove roll, move the pump lever to
the advance position, then move the pump handle up
and down.
• To retract the groove roll, move the pump lever to the
retract position. See Figure 9.
9 9