Duff-Norton SK6405-100 User Manual

6405-100 10/10/06 11:50 AM Page 1

CAUTION!

This manual contains important information for the correct installation, operation and maintenance of the equipment described herein. All persons involved in such installation, operation, and maintenance should be thoroughly familiar with the contents. To safeguard against the possibility of personal injury or property damage, follow the recommendations and instructions of this manual and keep it for further reference.

WARNING!

The equipment shown in this manual is intended for industrial use only and should not be used to lift, support, or otherwise transport people.

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SECTION I	GENERAL INFORMATION
1-1	General
1-2	Industrial Use Only
1-3	Factory Preparation
1-4	Friction Disc Clutch
1-5	Warranty and Warranty Repair
Figure 1-1	Dimensions and Specifications
SECTION II	Installation
SECTION III	OPERATIONAL PRECAUTIONS
3-1	A.C. Motor
3-2	Voltage Supply
3-3	Cevis Pins
SECTION IV	MAINTENANCE
4-1	Lubrication
4-2	Required Tools
4-3	General Procedures
4-4	Disassembly
4-5	Assembly
Figure 4-1	Slip Clutch Assembly
Figure 4-2	Brake Coupling Alignment
SECTION V	ILLUSTRATED PARTS LIST
Figure 5-1	Exploded Illustration
SECTION VI
Figure 6-1	Wiring Diagram

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1-1. General

This page provides instructions for operation and maintenance of Duff-Norton® 3405 and 6405 Series electromechanical actuators. To ensure efficient, long and satisfactory use of this unit, read and understand the information herein, and follow the instructions closely.

loading the actuator, and, while operating, loosening the clutch hex nut slightly until ammeter reads the required current draw. (See table below.) Clutch is not effective at loads of 50 pounds or less.

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 the specific 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 electrical and mechanical components will function properly and that the actuator will lift its rated load. 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 to you in its factory approved state. You should, however, carefully inspect the actuator for damage that may have occurred during transit.

1-4. Friction Disc Clutch

The friction disc clutch is set so that the actuator will lift its rated load, or a lighter load if so specified, but will slip should the actuator be run into a jamming position at the end of its travel. Thus, under overloads, or jamming conditions, the clutch will slip while the motor continues to run. If necessary, the clutch can be set to slip at a lighter load by connecting an ammeter in the line at the motor,

WITH 115 V. 60 HZ AC MOTOR

			Speed			Amps
3405 Series	6405 Series	(in/min)
Applied	Applied			Optional			Optional
Load	Load	Standard		High Speed	Standard		High Speed
(lbs.)	(lbs.)	Motor		Motor	Motor		Motor
100	100	42		80	2.40		4.50
200	200	41		75	2.45		4.60
250	300	39		73	2.50		4.65
N/A	400	37		70	2.55		4.70
N/A	500	35		68	2.60		4.80

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 the 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 OR 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.

2-1. To install the actuator, simply support and secure it

WITH 12 V. DC MOTOR

		Speed			Amps
3405 Series	6405 Series	(in/min)
Applied	Applied	Standard	Optional			Optional
Load	Load	Motor	High Speed	Standard		High Speed
(lbs.)	(lbs.)	(MPD-6405)	Motor	Motor		Motor
			(HMPD-6405)
100	100	68	145	6		21
200	200	60	132	10		28
250	300	52	120	13		36
N/A	400	42	–	17		–
N/A	500	32	–	22		–

DUTY CYCLE CHART

			# Duty Cycle	(inches per hour)
3405 Series	6405 Series	AC Motor			DC Motor
Applied	Applied	Standard	High Speed
Load	Load	28-33 mfd	64-77 mfd		Standard	High Speed
(lbs.)	(lbs.)	Capacitor	Capacitor		DC Motor	DC Motor
100	100	600	490		2800	1350
200	200	575	485		1750	1000
250	300	550	470		1050	700
N/A	400	525	465		650	–
N/A	500	500	450		350	–

NOTE: Some actuator external surface temperatures may reach 230˚ during use at or near maximum duty cycle. All ratings are nominal and are based on actuator being broken-in for approximately 2500 inches of travel.

# Total inches travel (up and down) per hour with equally timed intervals between cycles.

with a single pin through one clevis end, secure it to its load with a second clevis pin, and then use the appropriate wiring diagram (AC or DC, Figure 2-1 or 2-2) to connect the actuator to your power source.

2-2. Avoid using a low voltage supply for the actuator, All wiring, switches, and other electrical components must be of sufficient capacity to carry the required current.

2-3. The translating tube is not keyed, and must be restrained from rotating.

FIGURE 2-1

FIGURE 1-1

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SECTION I

DIMENSIONS AND SPECIFICATIONS

Note: Dimensions are subject to change without snotice.

SECTION II

INSTALLATION

2-4. The axes of the clevis pins should be parallel so that the actuator can pivot without binding. A few drops of oil should be applied to the clevis pins on installation and periodically thereafter.

2-5. External wires for customer hookup are color coded as to direction of travel (see wiring diagrams, Figure 2-1 or 2-2).

CAUTION

To protect the actuator and prevent damage from overtravel, it is recoommended that travel limiting switches be incorporated in the installation.

FIGURE 2-1