Diagnostic Flow Chart
Before you begin, try loosening the #14 wood screws holding the nuts and the
1
/
4
"
lag screws holding the thrust plates.
Overtightening may have caused components to become misaligned and to bind.
Problem: Main screws are difficult to turn
Is the vise skewed?
Zero the front jaw as in
step #11 of instructions.
Re-try.
Yes
No
Remove obstruction and
re-try.
Add the chain
1
/
2
link and
re-try.
Is the chain too tight?
Remove the complete front
jaw assembly. Do main
screws rotate freely?
Remove link and chain.
Turning independently, do
both main screws rotate
freely?
Clean and grease main
screws and nuts. Re-try.
Chain may be too tight.
Go to...
Are main screws and nuts
clean and well greased?
Are there any obstructions
interfering with smooth
operation of main screws,
such as the bench top or
table legs?
Yes
Yes
Yes
No
No
Yes
No
No
Add shims between the
thrust plate and the front jaw
until the main screws are
parallel to one another.
Are main screws square to
front jaw face and parallel?
Yes
No
Add shims between the nut
and the rear jaw until the
main screws are parallel to
one another.
Remove the lag screws,
front jaw and chain. Wind
the main screws into the
nuts in the rear jaw. Are
the main screws square and
parallel to the rear jaw?
Yes
No
814 Proctor Avenue
Ogdensburg, New York
13669-2205 USA
1090 Morrison Drive
Ottawa, Ontario
K2H 1C2 Canada
192
© Veritas Tools Inc. 2005
INS-051 Rev. G
Printed in Canada.
