– 6 –
The sink drilling process is not
complicated, but requires a cer-
tain amount of caution and fore-
thought. Porcelain sinks can be
chipped if care is not exercised
when drilling the hole for the
faucet.
[NOTE: This procedure is for the non air gap faucet provided.]
2.7 Porcelain/Enamel over Steel or Cast Iron Sinks
Using a small diameter carbide tipped drill, drill a pilot hole completely through
the porcelain and the material underneath. Remove any metal chips that fall into the
sink to prevent rust stains. Place the spring-loaded porcelain cutter bit in to the drill
chuck. Make sure the pilot guide is inserted tightly. Insert the pilot guide onto the
pilot hole. Push down gently on the drill motor to apply light pressure to the porce-
lain surface. Start the drill motor, turning as slowly as possible. After the initial cut
has started, motor speed may be gradually increased. The cut may require three to
four minutes to complete. Going faster could result in excessive chipping. Be sure a
complete ring has been cut through the porcelain to the metal underneath.
Place the finish hole saw into the drill chuck. Make sure the pilot guide is insert-
ed tightly. Insert the pilot guide into the pilot hole. Begin cut using a slow speed and
light pressure until the porcelain has been penetrated to the material underneath.
Remove the saw from the hole and clean all debris from the porcelain surface.
Reinsert saw into the hole and cut through the remaining material.
2.8 Install Faucet (Fig. 6)
Figure 6
Disassemble the hard-
ware from the threaded
stud except for the top base
plate and sealing gasket.
Install the faucet in the sink
hole. From below the sink
assemble the mounting
hardware. Use a deep sock-
et to tighten the nut.
Step 3.
Finish Hole Saw
Small Rubber Washer
Counter Top
Lock Washer
Nut
Black Locating Washer
(used where a 1/2” hole is
available, reverse when
mounting on stainless steel
or when using drilled hole)
Escutcheon Plate
Black Rubber Washer
Push-in Fitting, 7/16" X 3/8" Tube.
3/8” Tubing (White)
