Jaw Capacity Chart
Jaw Style
Gripping Dowel
Gripping in Hole
Outside Diameter
Inside Diameter
#1 Step Jaws
3/32" to 1-3/8"
11/16" to 2-3/8"
#2 Round Jaws
1-1/2" to 2-5/8"
2" to 3-3/8"
#3 Wide Jaws
3-1/16" to 4-3/8"
N/A
Pin Jaws
N/A
1" to 2-3/8"
Chuck System Description
A. Main body: designed to hold all jaws as an assembly.
B. Carrier: to which the top jaws are each attached with one or two
hex screws.
C. Jaws: attached to the carrier, used for gripping the wood piece to be
turned (#2 round jaws are shown in the photograph below).
D. Socket hex screws: attach jaws to chuck (2 per jaw).
E. (2) Wrench tightening holes: insert and turn key to secure grip
Installing the Jaws
Select the appropriate jaw for your project. Place the selected jaw on top of
the carrier, matching the number stamped on the main body to the
number on each individual jaw. Using the provided hex wrench and the
hex set screws, firmly tighten the jaw down onto the surface of the carrier.
Repeat this step for for the remaining three jaws.
Maintenance
Brushing is all that is needed to clean your chuck. If the chuck becomes
sticky, soak in varsol or mineral spirits with 10% oil added. Soak for thirty
minutes and blow dry.
Mounting the Adapter
1. Wipe the inside of the threads and the outside of the adapter to insure
both surfaces are clean.
2. Choose the 1" x 8tpi chuck threads or select the 3/4" x 16tpi adapter,
depending on the threads for your lathe. More PSI adapters are available
in our catalog.
3. Hold the chuck in your hand, screw and tighten the adapter into the
bottom threaded portion of the chuck.
Mounting the Chuck to Your Lathe
Screw the completed assembly onto your lathe. The chuck should go on
effortlessly with no binding. Screw the chuck all the way until the adapter
face contacts the shoulder of the lathe spindle. Lock the spindle, slightly
unscrew the chuck and give it a firm spin. This will snap the chuck firmly
in place.
Operating the Chuck
Mount chuck onto the lathe headstock. Insert key wrench into a square
key hole on the side of the chuck. Rotate key wrench to open and close
jaws.
Chuck Gripping Depth
When turning a bowl, for safety reasons, allow a minimum amount of
wood for the chuck to grab while turning.
1. Cavity base (inside grip) – for a 2" diameter base, minimum hole
depth is 3/16".
2. Spigot base (outside grip) – for a 2" diameter base minimum
grip is 3/16".
Lathe Speeds
Turning: 500-1500RPM
Sanding & Polishing: 1500-2500RPM
Make sure your wood is properly aligned and balanced
when mounted or re-mounted.
Use slower speeds for larger work.
PSI Woodworking Products
CSC3000C Barracuda 2 Key Chuck
A
B
C
3/16”
©2007 PSI Woodworking Products 9900 Global Rd., Philadelphia, PA 19115 - v01/07
D
E
1
2
(Shown with two #2 round jaws installed)
Sp
ig
ot
base
Ca
vit
y
base
3/16”
