Duff-Norton SK6415-300 (SPA Series DC) - Manual (Page 3)

1-1. General
This manual provides instructions for the installation,
operation and maintenance of the Duff-Norton 6415
Series DC 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 Company
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 pre-lubricated at the factory and thus
requires minimum maintenance.
Limit switches are checked at the factory for proper
functioning.
External wires are provided for customer
hookup. Wires are color coded as to direction of travel of
the actuator (see wiring diagram, Figure 6.2).
1-4. Specifications
Table 1-4.
6415 Series DC Actuator Specifications
# Total inches of travel (up and down) per hour with
equally timed intervals between cycles.
* Total inches of travel (up and down).
Table 1-4-1. 6415 Series DC Actuator
Duty Cycle
NOTE
Duty figures are based on 75˚F (24˚C) ambient
temperature. All ratings are nominal and are based on
actuator being broken-in for approximately 2500 inches
of travel.
1-5. 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 the Duff-Norton Company.
Authorization for return must be received from
the Duff-Norton Company before returning any
equipment for inspection or warranty repair.
SECTION 1
GENERAL INFORMATION
3
Applied Continuous
Load Speed Duty Cycle # Duty*
(lbs) (in/min) Amps (in/hr) (in)
500 36 15 1500 1300
1000 31 21 750 600
1500 26 27 280 See Table 1-4-1