Kurt SCD430 Instruction Manual

SCD430
SELF-CENTERING
VISE
Operating Instruction Manual
SCD430
ENGLISH

2
TABLE OF CONTENTS
Introduction ................................................................................................................. 3
Setup Instructions ........................................................................................................ 4
Operating Instructions ...............................................................................................5-9
SCD430 Parts List......................................................................................................... 12
SCD430 Mechanical Drawing ..................................................................................... 13
Maintenance Schedule ......................................................................................... 14-15
Troubleshooting Tips ................................................................................................. 16
VISE DATA
Use this to fill out information about your vise for quick reference.
Purchase Date: _________ -________ -_________
Purchase Order: ______________________________
______________________________
______________________________
Purchased From:
Delivery Date:
Serial No.: ______________________________
NOTE: MAKE SURE TO REGISTER YOUR WARRANTY ONLINE AT
KURTWORKHOLDING.COM
TABLE OF CONTENTS
Maintenance Log/Notes ............................................................................................ 17
Warranty .................................................................................................................... 18
Mounting & Chip Guard Instructions.......................................................................... 10
Centerline & Gibs Adjustment .................................................................................... 11

3
3 | ENLGISH
Table of Contents
Introduction .................................................................................................................3
Setup Instructions......................................................................................................4
Operating Instructions .........................................................................................5-7
DX6 Parts List ...............................................................................................................8
DX6 Mechanical Drawing........................................................................................9
Maintenance Schedule....................................................................................10-12
Troubleshooting Tips ............................................................................................. 13
Vise Data
Use this to ll out information about your vise for quick reference.
Purchase Date: _______ -_______- _______
Purchase Order: _______________________
Purchased From: _______________________
Delivery Date: _______________________
Serial No.: _______________________
Note:
Make sure to register your warranty online at kurtworkholding.
Introduction
Thank you for purchasing a Kurt DX6 vise. You have just purchased one
of the best machine vises in the industry. The outstanding accuracy
of this product is second to none. Backed by a lifetime warranty, this
product will last forever when used and maintained properly.
The original Kurt Anglock vises are designed for precision clamping on
basic machine tools such as knee-type mills, grinders and machining
centers. They can be used for, but are not limited to, operations like
precision boring, drilling, tapping, grinding & nishing.
The patented Anglock design allows the movable jaw to advance in
such a way that each pound of force forward induces a ½ pound force
downward which minimizes the jaw lift and increases accuracy. This
combined with the needle bearings increases jaw clamping pressure.
Other features include: 80,000 psi ductile iron body, hardened vise bed
& jaw plates, semi-hard steel screw.
Table of Contents Introduction
INTRODUCTION
Thank you for purchasing a Kurt SCD430 vise. You have just purchased one
of the best machine vises in the industry. The outstanding accuracy of this
product is second to none. Backed by a lifetime warranty against
workmanship and material defects, this product is built to last when
used and maintained properly.
The original Kurt Anglock vises are designed for precision clamping on
basic machine tools such as knee-type mills and machining centers. They
can be used for, but are not limited to, operations like precision boring,
drilling, tapping, & finishing.
The patented Anglock design allows the movable jaw to advance in such a
way that each pound of force forward induces a ½ pound of force
downward which minimizes the jaw lift and increases accuracy. This,
combined with the needle bearings, increases jaw clamping pressure.
Other features include: 80,000 psi ductile iron body, hardened vise bed &
jaw plates, and a semi-hard steel screw.
INTRODUCTION
Fig.1

4
SET-UP INSTRUCTIONS
Now that you have your new Kurt Vise, it’s time to set-up and begin using it.
You will see that your new vise comes with a Kurt swivel handle and chip
guard in the shipping carton (instruction manual available online at
www.kurtworkholding.com). The chip guard rests between the ways of the
vise and can be trimmed to size (see pg. 10) to help keep the chips away
from the screw. The handle is specifically designed to provide maximum
torque to your vise ( clamping force provided below). Your vise should be
mounted to a clean, flat surface. The surface and the vise must be free of
any chips, dirt, or debris of any kind. The mounting surface can be honed if
necessary. Clean the bottom of the vise with solvent or another cleaner if
needed.
To minimize vise bed deflection, clamp your Kurt vise to your machine table,
pallet, or sub-plate using the built-in clamping slots or through the body
holes provided.
Additional clamping can be used, but may not be necessary. Please be sure
to exercise good judgment when securing your vise to the mounting surface.
Be sure your vise is secured and will not move when applying the machine
pressure.
Torque Ft.-Lbs. SCD430
10 500
20 1100
30 1800
40 2500
50 3300
60 4100
SET-UP INSTRUCTIONS
Clamping Force - Lbs

5
OPERATING INSTRUCTIONS
For proper vise operation, insert the handle on to the hex end of the
vise. Rotate clockwise to clamp and counterclockwise to unclamp your
vise. This handle, combined with the correct amount of torque, will
provide you with all the clamping force you will need to machine your
parts. DO NOT use any other type of pressure to open or close your vise.
The uses of handle extensions, air impact wrenches, breaker bars, or
hammer strikes are not recommended and will void the warranty if
used. This will also cause damage to the thrust bearing and screw
threads. If you need more clamping force you may require a larger
vise.
To properly clamp a part in your Kurt vise, you should place the part in
the center of the jaws resting on the ways of the vise. Clamping only on
one side or above the movable and stationary jaws can result in jaw lift
or loss of accuracy. (See Fig. 2 on next page)
If one-sided clamping is necessary, you MUST use a dummy part on
the other side. When using parallels or step jaws, you must select a size
that keeps the bottom of the clamped part at or below the top of the
movable and stationary jaws. Always use jaw plates for clamping. If jaw
plates are not used, damage to the mounting surface of the movable
and stationary jaw will occur. This will result in reduced clamping
accuracy and repeatability.
OPERATING INSTRUCTIONS

6
Fig.2
Sketch #2A
Incorrect part
clamping.
Vise width
centerline
Sketch #2B
Correct part
clamping.
Sketch #2C
Correct part
clamping.
Sketch #2D
Correct part
clamping.
Dummy
spacer
OPERATING INSTRUCTIONS

7
OPERATING INSTRUCTIONS
JAW PLATE POSITIONING
Fig.3Fig.3
Note: Dimensions below are in inches unless specified.

OPERATING INSTRUCTIONS
SIDE, TOP & END VIEW
8
Fig.4
Note: Dimensions below are in inches unless specified.

9
OPERATING INSTRUCTIONS
MOUNTING LOCATIONS
Fig.5
Note: Dimensions below are in inches unless specified.

10
2ENGLISH |
Table of Contents
Introduction .................................................................................................................3
Setup Instructions......................................................................................................4
Operating Instructions .........................................................................................5-7
DX6 Parts List ...............................................................................................................8
DX6 Mechanical Drawing........................................................................................9
Maintenance Schedule....................................................................................10-12
Troubleshooting Tips ............................................................................................. 13
Vise Data
Use this to ll out information about your vise for quick reference.
Purchase Date: _______ -_______- _______
Purchase Order: _______________________
Purchased From: _______________________
Delivery Date: _______________________
Serial No.: _______________________
Note:
Make sure to register your warranty online at kurtworkholding.com
Table of Contents
CAUTION:
Is used when your action or lack of action may cause serious
injury.
MOUNTING & CHIP GUARD INSTRUCTIONS
1. Clamp part in the vise.
2. Cut a piece of chip guard material long enough to extend
underneath the jaw plates (#22, Figure 6).
3. Unclamp part and open jaws to fit new cut chip guard into the
notch in the center way.
4. Re-clamp the part making sure the jaw plates cover the top of the
chip guard and that no binding occurs.
5. Place another piece of chip guard material in the front of the vise.
Cut the piece to length so it extends underneath the retaining
plate.
6. Secure the chip guard to the holding block using the two button
head cap screws (#15, Figure 6).
CAUTION:
Use caution when handling chip guard material. Edges and
corners are very sharp. Failure to take caution could result in
personal injury.
SURFACE MOUNT USING SINE KEYS
Locating the SCD430 with keys requires the use of sine keys or standard
keys. They are available in several different sizes that are listed on our
website at www.kurtworkholding.com. The keys are sold in sets of 2 per
package.
English Mounting:
The SCD430 can be properly located using the two English sine key holes
indicated by the GG's in figure 5 above. The SCD430 can be bolted down
using the six 5/16" bolt holes indicated in figure 5 above by JJ or by the
two 3/8" bolt holes indicated by KK. The SCD430 vise can also be
mounted using toe clamps on the sides of the vise.
Metric Mounting:
The SCD430 can be properly located using the two Metric sine key holes
indicated by the HH's in figure 5 above.
PROPER CHIP GUARD INSTALLATION AND USAGE

CENTERLINE & GIBS ADJUSTMENT
Centerline Adjustment
The SCD430 is equipped with a feature that allows for centerline
adjustment. It might not be necessary to adjust the centerline unless
more than one vise is used. If using more than one vise, following the
procedure below to have the centerlines of all the vises in line with one
another:
1. Lightly clamp a parallel block between the jaws.
2. Loosen the lock screw in both of the threaded shaft collars near the
handle end of the vise.
3. Holding the lead screw from turning, rotate each collar until the
centerlines have been adjusted.
4. Tighten threaded shaft collars to holding block while preventing the
screw from turning.
5. Tighten lock screws in both threaded shaft collars.
Adjusting Gibs for Accuracy
The SCD430 also has adjustable gibs in each movable jaw to allow for
maximum accuracy. There are two gibs in each movable jaw and can be
adjusted to provide a close running fit with the center way. For most
applications, one movable jaw should be adjusted to have a close
running fit with the center way; this will become a reference surface.
The other movable should remain loose so it can pivot and adjust for any
non-parallelism of the work piece. The procedure for adjusting the gibs
is as follows:
1. Remove the two slotted head set screws located on the top surface
of the movable jaw. These are just plugs and allow access to gib
adjustment set screws
2. Pressure on the gib is accomplished through the use of a set screw
in the movable jaw. By tightening or loosening the set screw, you
can increase or decrease the amount of pressure applied on the gib.
3. Adjust gib as desired.
- Too much pressure on the gibs will make the screw hard to turn.
- Too little pressure on the gibs will result in a loose movable jaw
that is able to pivot.
- Both the front and rear gibs on each movable jaw should be
adjusted with the same amount of pressure.
4. After the gibs have been properly adjusted, reinstall the two slotted
set screws.
11

SCD430 Parts List
SCD640 PARTS LIST
12

SCD640 MECHANICAL DRAWING
98 | ENLGISHENGLISH | DX6 Parts List DX6 Mechanical Drawing
DX6 Parts List DX6 Mechanical Drawing
ITEM# PART # DESCRIPTION QT Y.
1 DX6-1 Body 1
2 DX6-2 Movable Jaw 1
3 DX6-3 Nut 1
4 DX6-5 Screw. 1
5 DX6-6 Stationary 1
6 D60-7 Jaw Plate 1
7 3600V-8 Retaining ring 1
*8 D60-9 Segment 1
*9 D60-41 Thrust Bearing 1
*10 3600V-42 Thrust Bearing Washer 2
11 WSRL46 WorkStop 1
12 DLU4-96 O-ring #16 4
*13 3600V-99 O-ring #117 1
14 DX6-102 Model Tag 1
15 DX6-111 Kurt Logo Label 2
*16 3600V-128 O-ring #129 1
*17 3600V-147 Spiral Retaining Ring 2
18 3600V-191 Protective Cap 4
*19 D688-211 Internal Brush Seal 2
20 DX6-223 Model Tag 2
21 DX6-224 Screw Support 1
22 DL600-249 Chip Guard (LONG) 1
*23 DX6-311 Wave Spring 2
24 D60-315 Grooved Jaw Plate 1
25 07-0230 U-Type Drive Screw 2
26 00-1191 SHCS 8-32 x .375LG 4
27 00-1414 SHCS 1/2-13 x 3/4 LG 4
28 01-3134 HDOG SHSS 1/2-13 x .625 LG 1
29 00-3392 LHCS 7/16-14 x 2.00 LG 4
30 D60I-10A-SA Handle Assembly 1
*DX6-KIT Includes.1-d60-9 1-d60-41 2-3600v-42 1-3600v-99
1-3600v-128 2-3600v147 2-d688-211 2-dx6-311
SCD430 Mechanical Drawing
Fig.6
13

Maintenance Schedule
It is very important to perform regular maintenance on your Kurt vise to
ensure proper operation. Improper maintenance will result in poor vise
performance and may void your warranty.
Daily/ Weekly
1. Remove chips from surface of vise.
2. Visually inspect seals for damage and cleanliness.
3. Visually inspect for chip entrapments and remove when necessary.
4. Air-dry and apply rust inhibiting oil to the machined surface of the vise.
3 to 6 Months
MAINTENANCE SCHEDULE
1. Open the vise until the long end of an Allen wrench can be inserted into
the socket head set screw in the back of the movable jaw (#20 in figure 6).
Note: the backside of the movable jaw has (3) drilled and tapped holes.
2. Loosen the setscrew (#19 in figure 6) but do not remove. Turn out until
the face of the set screw is approximately 1/4" beyond the backside of the
movable jaw.
3. With the Allen wrench still in place, lift upward allowing the movable jaw
to pivot off the nut (#4 & #7 in figure 6). Note: there is a segment (#21,
figure 6) in the shape of a half sphere in the movable jaw cavity. Be careful
not to misplace while cleaning.
4. Remove all chip guards.
5. Clean out any chips that may have built up underneath the movable jaw
and in the center ways of the vise bed.
6. Remove the threaded shaft collar(#16, figure 6) near the hexed end of the
screw (#6, figure 6). Note: Do not loosen or remove the rear-threaded
shaft collar, this will insure the centerline of the jaws stay in the same place
after reassembly.
7. Remove the holding block (#11, figure7).
8. Clean and inspect both sets of the thrust bearing assemblies (#'s 8 & 9,
figure 6).
9. Apply water-resistant grease to the thrust bearings (#9, figure 6).
10. Re-install the holding block.
14

3 to 6 months
MAINTENANCE SCHEDULE
11. Install the threaded collar. While holding screw from turning, lightly
snug threaded collar to the holding block. Tighten lock screw on the
collar.
12. Inspect the wiper seals (#5, fig. 6) on the nuts. Remove any chip build
up.
13. Oil all exposed surfaces of the screw and apply a small film to the top
surface of the vise bed.
14. Apply a generous amount of grease into the cavity and place the half
sphere segment back in the movable jaw cavity. The flat surface will
match up with the angle of the nut once reassembled.
15. Re-install the movable jaw, assuring the segment is properly in place.
16. While pulling back on the movable jaw, tighten the set screw.
17. Back off the screw 1/8 of a turn counter clockwise. The setscrew must
not be tightened all the way.
18. Close the movable jaws tightly. This will set the segment to its proper
orientation. Open the movable jaws.
15

TROUBLESHOOTING TIPS
Troubleshooting Tips
If properly maintained, The Kurt SCD430 vise will operate trouble free
for many years. In some cases, it will be necessary to troubleshoot.
Use the information below to help in the process.
Problem: My vise turns hard.
Tip: Allow for break in of vise.
Tip: As a used vise, it could be filled with chips and threads could be
jammed. Properly clean and grease vise.
Tip: The set screw in the back of the movable jaws may be to tight.
Back off the set screw an 1/8 of a turn counter-clockwise.
Problem: My vise will not turn in either direction.
Tip: The vise is jammed with debris. Disassemble and clean as needed.
Problem: My vise won’t hold tolerance.
Tip: You may be experiencing jaw lift from clamping too high or on one
side of the jaw. Lower the part in the vise jaw and clamp more material.
Problem: My vise is stiff when clamping on a part or is difficult to back
off a part.
Tip: The vise's thrust bearing pack may need to be replaced.
Problem: My vise is not clamping at a high clamping force.
Tip: The vise's thrust bearing pack may need to be replaced.
16

MAINTENANCE LOG/NOTES
MAINTENANCE LOG/NOTES:
17

All Kurt Manufacturing Company industrial workholding products and parts
with the exceptions noted below, are warranted against defects in material and
workmanship for the life of the product or part. (The life of the product is dened
as that point in time when such item no longer functions due to normal wear and
tear.) Failure to properly maintain and/or properly operate the product or part that
has been worn out, abused heated ground or otherwise altered, used for a purpose
other than that for which it was intended, or used in a manner in consistent with
any instructions regarding its use. The sole obligation of Kurt Manufacturing
Company, Inc. (Kurt) and the purchaser’s SOLE AND EXCLUSIVE REMEDY
hereunder, shall be limited to the replacement or repair of any Kurt product or
part (by an authorized Kurt technician) which are returned to Kurt Manufacturing
Company’s place of business, transportation, shipping and postal charges prepaid,
and there determined by Kurt Manufacturing Company to be covered by the
warranty contained herein.
THE LIMITED WARRANTY DESCRIBED HEREIN IS MADE EXPRESSLY IN LIEU OF
ANY OTHER EXPRESSED OR IMPLIED WARRANTIES, INCLUDING ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
KURT MANUFACTURING COMPANY IS NOT RESPONSIBLE FOR THE IMPROPER
USE OF ITS PRODUCTS. KURT SHALL NOT BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES, INCLUDING
BUT NOT LIMITED TO, LOSS OF USE, REVENUE OR PROFIT.
KURT ASSUMES NO LIABILITY FOR, AND MAKES NO WARRANTY REGARDING
ANY PURCHASE ITEMS WHERE THE MANUFACTURER OF SUCH ITEM EXTENDS
A SEPARATE WARRANTY.
WARRANTY
18

Manual Revision:
9.8.2022
Thank you for your
purchase! If you
have any feedback
or questions please
contact us at.
kurtworkholding.com
Kurt Industrial Products//A Division Of Kurt Manufacturing
9445 East River Road NW | Mpls, MN 55433 | wor[email protected]
Phone [phone] | Toll Free 877-226-7823
Fax [phone] | Toll Free Fax [phone]