Operating Instructions Model Hc-450; Locating Level Vial Instructions - RIDGID HC-450 Operator's Manual

HC-450/HC-300 Hole Cutting Tools
Figure 7 – HC-450 on a Horizontal Cut
11. By using either feed handle, raise the hole saw to the
pipe.
12. Plug the hole-cutting tool into the electrical outlet,
making sure to position the power cord along the
clear path. If the power cord does not reach the out-
let, use an extension cord in good condition.
WARNING
To avoid electric shock and electrical fires, never
use and extension cord that is damaged or does not
meet the following requirements:
• The cord has a three-prong plug similar to shown
in Electrical Safety.
• The cord is rated as "W" or "W-A" if being used
outdoor.
• The cord has a wire thickness gauge that does
not exceed 14 AWG if shorter than 30 feet or 12
AWG if 30 feet or longer. If the cord is too long or
if the wire thickness is too small, the cord may
overheat, melting the cord's insulation or causing
nearby objects to ignite.
Operating Instructions
Model HC-450
WARNING
Do not use a hole-cutting tool without proper eye
protection.
1. The HC-450 is actuated by depressing one of the
lock out switches located in the front carrying han-
dle. (See Figure 8.)
2. With one hand on a feed handle and the other hand
on a switch, feed the hole saw into the pipe.
WARNING
saw blade. Do not reach across the hole saw or wear
loose gloves that may become entangled and cause se-
rious injury.
Figure 8 – Model HC-450 Lock Out Switches
3. Rotate the feed handle to apply downward pressure
on the hole saw.
WARNING
so will result in premature saw failure and possible serious
injury.
4. After completing the hole cut, retract the saw from the
pipe by turning feed wheel clockwise.
NOTE! When branching off an existing system, use a
hole saw with the
helps retain the pipe slug in the hole saw.
5. Turn unit OFF by releasing the actuator switch and let
hole saw come to a complete stop.
6. Remove unit by unclamping chain and using both
front and rear carrying handles.
7. Brush away all metal chips created by the hole saw
from the area around the hole.

Locating Level Vial Instructions

The rear base of the HC-450 Hole Cutting Tool houses a
level vial. This vial is used to ensure that series of holes
align. (See Figure 9.)
In the event that the hole location is angled by a certain
amount, the vial can be rotated within the base to reflect
the deviated angle.
In new pipe installation, the vial can be pre-set and used
to repeat hole orientation. As long as the vial is showing
level, the hole angles will align.
Ridge Tool Company
Keep fingers and hands away from the
Do not overfeed saw while cutting. Doing
1 / " pilot drill. The pilot drill
4
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