Duff-Norton SK6905-100-1 - Manual (Page 3)

1-1. General
This manual provides instructions for the installation,
operation and maintenance of the Duff Norton
® 3905 and
6905 Series AC Mini-Pac
™
electromechanical actuator.
It includes proper procedures for the disassembly,
cleaning, inspection, rebuilding and assembly of the
actuator. To ensure efficient, long, satisfactory use of
this unit, these instructions should be followed closely.
1-2. Industrial Use Only
The actuators described and illustrated in this manual are
intended for industrial use only and should not be used to
lift, support or otherwise transport people, unless you
have a written statement from Duff-Norton which
authorizes this actuator unit, as used in your application,
as suitable for moving people.
1-3. Factory Preparation
Each actuator is carefully assembled and tested at the
factory to ensure that the motor and the mechanical
components will function properly and that the actuator
will lift its rated load.
The brake is preset at the factory and no further
adjustment is required. With proper maintenance, this
brake prevents the actuator from self-lowering.
The actuator is prelubricated at the factory and
thus requires minimum maintenance.
Limit switches are checked at the factory for
proper functioning.
The motor current draw is checked to make
certain that it is within Duff-Norton standards.
Every effort has been made to deliver this unit
in its factory-approved state. You should, however,
carefully inspect the actuator for damage that may have
occurred during transit.
1-4. Warranty and Warranty Repair
Subject to the conditions stated herein, Duff-Norton will
repair or replace, without charge, any parts proven to
Duff-Norton’s satisfaction to have been defective in
material and workmanship. Claims must be made within
one year after date of shipment. Duff-Norton will not
repair or replace any parts that become inoperative
because of improper maintenance, eccentric loading,
overloading, chemical or abrasive action, excessive heat,
or other abuse.
Equipment and accessories not of Duff-Norton’s
manufacture are warranted only to the extent that they
are warranted by their manufacturer, and only if the
claimed defect arose during normal use, applications and
service. Equipment which has been altered or modified
by anyone without Duff-Norton’s authorization is not
warranted by Duff-Norton. EXCEPT AS STATED
HEREIN, DUFF-NORTON MAKES NO OTHER
WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.
If you have any questions concerning warranty
repair, please contact Duff-Norton.
Authorization for return must be received from
Duff-Norton before returning any equipment for
inspection or warranty repair.
SECTION 1
GENERAL INFORMATION
3