RIDGID 918-I Manual página 14

918-I Roll Groover
4. Groove pipe. During use, keep hands away from the
groove rolls, stabilizer wheel and end of pipe. Do not
groove pipe shorter than specifications and do not
reach inside pipe or touch the groove. This reduces
the risk of crushing injuries.
If during grooving the pipe does not track properly,
step off foot switch and stop grooving. Set up a new
groove and rotate the crank handle an additional one
half (½) turn to increase preload. Do not use exces-
sive preload. This can damage the roller.
Once the stabilizer is set for a given size and type of
material, it generally does not need to be readjusted
or backed off when pipe is loaded and unloaded.
Pipe Direction of
Rotation
Figure 14 – Offsetting the Pipe
Grooving Operation
1. Confirm that equipment is properly set up and pipe
is properly prepared and loaded. Do not groove pipe
shorter than 8".
2. Set groove diameter.
3. If needed, set the stabilizer position.
4. Assume a proper operating position to help maintain
control of the machine and pipe (See Figure 15).
• Stand facing the roll groover on the ON/OFF switch
side with convenient access to the switch, pump
handle and pipe.Your left hand will be on the pump
handle, and your right hand is clear of the pipe
unless applying slight force to the pipe to maintain
tracking (see Tracking Tips section).
• Be sure that you can control the foot switch. Do not
step on foot switch yet. In case of emergency, you
must be able to release the foot switch.
• Be sure that you have good footing and balance
and do not have to overreach.
12
Crank Handle
Rotation (tighten-
ing on Pipe)
/ °, (Exaggerated)
1
2
Figure 15 – Proper Operating Position
5. Move the ON/OFF switch to ON position.
6. Apply approximately a quarter stroke of the pump
handle to force the groove roll towards the pipe.
7 . Depress the foot switch. The pipe will start to turn.
Allow one full pipe rotation between quarter strokes of
the pump handle. Do not advance the groove roll too
aggressively – this can cause the pipe to spiral out of
the roll set and poor groove form. Keep your hands
clear of the groove set, pipe end and stabilizer wheel.
Do not reach inside the pipe or touch the groove.
Monitor the pipe as it is grooved. The end of the pipe
should stay in contact with the drive shaft flange, and
the pipe should stay in position. If the pipe starts to
move out of position, step off of the foot switch and
stop grooving. Keep your body clear in case the pipe
comes out of the grip of the roll set. If the pipe starts to
come out of position stop grooving and check set up.
If the pipe end is damaged, a new groove will need to
be prepared.
Continue applying a quarter stroke of the pump han-
dle every pipe rotation.
When using the 1" roll set, it is especially important to
not apply excessive force (improper groove diameter
setting, undersized grooves, more than a quarter
stroke of pump handle per rotation). This can damage
the 1" drive roll.
8. When the depth adjustment nut contacts the top of the
groover, allow the pipe to rotate at least two more full
rotations to ensure uniform groove depth.
9. Remove foot from the foot switch.
10. Move the ON/OFF switch to the OFF position.
999-998-676.10_REV. D