US-LT Series
OPERATION INSTRUCTIONS
10000 SE Pine Street, Portland, OR 97216 • (503) 254-6600 • Fax (503) 255-2615 • www.aimco-global.com
LIT-MAN570
Rev. 04/2015
Printed in USA ©2015 AIMCO
PROCEDURE FOR CHANGING SPRING
IN THE US-LT SERIES DRIVER
1.
Remove clutch casing (left-hand thread).
2.
Remove clutch assembly from gear section on tool.
3.
With No. 2 Phillips head screwdriver, remove regulating screw.
4.
Remove spring holder and lock pin.
5.
Remove spring from anvil and replace with different spring.
6.
Install spring holder onto the anvil and slide the lock pin back into spring holder and into the slot on the
anvil.
7.
Install regulating screw so there are threads showing above it.
8.
Install clutch assembly back into gear section.
9.
Install clutch casing back onto tool.
10.
You are now ready to test and adjust the tool to the desired torque output.
TROUBLE-SHOOTING
PROBLEM
CAUSE
SOLUTION
Loses torque every time the tool is run
down. Finally, the tool will not run.
The lock pin did not get put back into
the spring holder.
Put pin into spring holder and into slot
on the anvil.
