Machine And Work Are Set-Up; Mounting The Hole Cutting Tool On The Pipe; Hc-450 - RIDGID HC-450 Manual Del Operador

Machine And Work Area Set-Up
WARNING
Set up the Hole Cutting Tool and work area ac-
cording to these procedures to reduce the risk of in-
jury from electrical shock, entanglement, crushing
and other causes and prevent tool damage.
Properly secure the Hole Cutting Tool to the pipe.
Improperly secured Hole Cutting Tools can slip and
fall and cause striking and crushing injuries.
Do not use for hot tapping. When cutting into an ex-
isting system, the pipe must be drained and de-
pressurized prior to cutting. This reduces the risk of
electrical shock and other serious injuries.
When working overhead, all personnel should wear
hard hats and be clear of the area below. This re-
duces the risk of serious injury should equipment or
other objects fall.
1. Check work area for:
• Adequate lighting.
• Flammable liquids, vapors or dust that may ignite. If
present, do not work in area until sources have
been identified and corrected. The hole cutter is
not explosion proof and can cause sparks.
• Clear, level, stable, dry location for all of the equip-
ment and operator.
• Properly grounded electrical outlet of the correct
voltage. A three prong or GFCI outlet may not be
properly grounded. If in doubt, have outlet inspected
by a licensed electrician.
• Clear path to electrical outlet that does not contain
any potential sources of damage for the power cord.
2. Inspect the work to be done. Determine the pipe type
and size, and clearance around the pipe. Determine
the size and location of the hole to be cut. Clearly
mark the cut location. If installing a fitting, follow the fit-
ting manufacturer's instructions. Determine the correct
equipment for the job. See the Description and Speci-
fication sections for tool information.
Make sure that the pipe to be cut is well supported and
stable. The pipe must be able to handle the weight of
the Hole Cutting Tool and the forces applied during
cutting without moving.
If working on an existing system, make sure that the
system has been depressurized and drained. The
HC-450/HC-300 Hole Cutting Tools
Hole Cutting Tools are not designed for hot tapping
purposes. Cutting into pressurized or systems with flu-
ids in them can cause spills, electrical shock and
other serious injury. Know the contents of the pipe and
any specific hazards associated with the contents.
3. Confirm that the equipment to be used has been pro-
perly inspected,
4. Select an appropriate hole saw for the work to be
performed. Make sure that the hole saw is properly as-
sembled per its instructions and is in good working
order. The use of a pilot drill is recommended. The
pilot drill should extend no more than 3/8" (10mm) past
the end of the hole saw, and should be securely
tightened.
5. With the Hole Cutting Tool on a stable surface, install
the hole saw into the chuck. Always make sure that
the ON/OFF switch is in the OFF position and the Hole
Cutting Tool is unplugged before installing or chang-
ing the hole saw or drill.
• Open the chuck wide enough for the shank of the
hole saw. If needed, the chuck key can be used to
open the chuck. Make sure that the shank and the
chuck jaws are clean.
• Fully insert the shank into the chuck. Make sure
that the hole saw is centered in the chuck and
firmly tighten the chuck by hand.
• Use the chuck key in all three chuck holes to se-
curely tighten the chuck onto the shank. Make
sure to remove the chuck key from the chuck be-
fore turning the tool ON.
Mounting The Hole Cutting Tool
On The Pipe
Hole Cutting Tools weigh up to approximately 42 pounds.
Use good lifting technique when placing on the pipe,
do not overreach, and keep good balance and footing at
all times. Depending on the circumstances, two people
may be necessary to mount the Hole Cutting Tool onto
the pipe.
Hole Cutting Tools can be used at any angle or orienta-
tion. If cutting a hole on the side or bottom of a pipe, it
may be easier to place the Hole Cutting Tool on the
top of the pipe to fasten the chain around the pipe and
then move the Hole Cutting Tool into final position.

HC-450

1. Make sure the chain is hanging freely and the swivel
handle is fully loosened.
2. Carefully lift the HC-450 Hole Cutting Tool and place
with the V-shaped guides squarely on the pipe near the
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