Joyce ACME SCREW User Manual

Joyce/Dayton Corp

.

Operation and Maintenance Manual

ACME SCREW Electric Cylinders by Joyce Dayton

Standard, Motor mount, and ComDRIVE style

WARNING!

The recommendations in this manual for installation, operation and maintenance must be followed to
ensure safe use. All persons responsible for the installation and use of Joyce/Dayton Electric Cylinders
must be familiar with the contents of this manual.

The customer is responsible for guards and other protective devices and for ensuring that Electric
Cylinder usage conforms with local and national operating and safety codes appropriate to the class of
equipment into which the Electric Cylinder is installed.

©2009 Joyce/Dayton Corp. All rights reserved FB0197 – 10-09

Table of Contents

Section I – General Information

1-2 Purpose and Scope .........................................................2

1-3 Receipt of Product...........................................................2

1-4 Warranty............................................................................2

1-5 Precautions for Use.........................................................3

1-6 General Installation Instructions ...................................3

1-1 Contact Joyce Dayton.....................................................2

Section II – Maintenance

2-1 Lubrication........................................................................4

2-2 Repair Parts.......................................................................5

2-3 Disassembly Procedure..................................................5

Section III – Views and parts lists

3-1 Acme Screw Electric Cylinder (ECA) Drawing............6

3-2 Acme Screw Electric Cylinder (ECA) Parts List..........7

3-3 Electric Cylinder Part Numbers.....................................8

3-4 Maintenance Log and Serial Tag ..................................9

3-5 Drawing for ECA ComDRIVE..........................................10

Section I

General Information

1-1 Contact Joyce/Dayton Corp

Joyce/Dayton Corp.
P.O. Box 1630
Dayton, OH 45401
[phone] (US and Canada only)
[phone] [phone] Fax
Email: [e-mail]
Website: www.joycedayton.com

1-2 Purpose and Scope

This manual provides installation, operation and maintenance instruction for the standard
Joyce/Dayton Electric Cylinders (ECA). Although this manual covers the standard Electric
Cylinders, some may vary significantly from this manual. For special units not covered please
contact Joyce/Dayton Corp. for assistance.

1-3 Receipt of Product

All equipment should be immediately inspected upon receipt for any damage and to verify correct
product and quantities. Any problems should be reported to Joyce/Dayton Corp. and the freight
carrier as soon as possible. Products returned without a Return Goods Authorization (RGA) will
not be accepted.

1-4 Warranty

Seller warrants its products to be free from defects in material and workmanship under normal
and proper use in accordance with instruction of seller for a period of one year from the date of
shipment to buyer. Seller's liability under such warranty or in connection with any other claim

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relating to the products shall be limited to the repair, or at seller’s option, the replacement or
refund of the purchase price, of any products or parts or components thereof which are returned
to seller freight prepaid and which are defective in material or workmanship. Products or parts or
components thereof, which are repaired or replaced by seller, will be returned to buyer freight
collect. This warranty is not intended to cover consumer products, as defined in the Magnuson­Moss Warranty-Federal Trade Commission Improvement Act, 15 U. S. C. Sections 2301-12,
which are purchased by buyer for purposes other than resale. If buyer is not intending to resell the
products, and if the products are consumer products as defined in the Magnuson-Moss Act, the
foregoing warranty, but not the limitation of seller's liability, shall be null and void. EXCEPT AS
EXPRESSLY STATED ABOVE, SELLER MAKES NO WARRANTY, EXPRESS OR IMPLIED,
WHETHER OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR
USE OR OTHERWISE, ON THE PRODUCTS, OR ON ANY PARTS OR LABOR FURNISHED
DURING THE SALE, DELIVERY OR SERVICING OF THE PRODUCTS.

1-5 Precautions of Use and Installation

1. Mechanical stops provided on the Electric Cylinders, (ECA), are not designed to be used as
end-of-travel stops. The customer is responsible for setting travel limits.

2. Travel can be limited using optional limit switches. These limit switches need to be set by the
customer. In most applications, factory or manufacturer-assisted installation is not required.
However, it is necessary that appropriate, qualified personnel perform the installation of
Joyce/Dayton products.

3. Joyce/Dayton Electric Cylinders, (ECA), are not rated for shock-loading or extreme vibration. It
is the responsibility of the user to ensure these conditions are not imposed on the actuator.

4. In the event that service or maintenance is required, the load must be secured or removed
before any work can begin.

5. The Electric Cylinder (ECA) can be mounted and operated in any orientation. Length of
allowable rise may differ for vertical and horizontal applications. Check the catalog and this
manual for allowable rises. Standard Electric Cylinders, (ECA) have vents in the

protection tube (outer tube). Additional holes will be plugged. Properly plug or vent
holes to prevent dirt or moisture form contaminating the actuator.

6. Never allow the Electric Cylinder to retract beyond the minimum closed position or extend
beyond the maximum open position, as damage to the unit can occur.

7. External temperature may exceed 230 Degrees F. near maximum duty cycle. Use caution to
prevent personal injury.

8. Do not use in applications where Electric Cylinder can be jammed against an
immovable object.

9. A brake motor is required on Acme Screw Electric Cylinders that have efficiencies greater than
or equal to 30%. This prevents the load from drifting when power is off.

10. Acme screw electric cylinders are not suitable for duty cycles greater than 25%.

1-6 General Installation instructions

1. Ensure that all personnel who will service or operate equipment are familiar with its use and
limitations.

2. Secure or remove the load before any installation procedures begin.

3. Be certain the rating of the Electric Cylinder (ECA) meets or exceeds the load.

4. The Electric Cylinder (ECA) must be mounted on a rigid structure sufficient to support the
maximum possible load. An under-designed structure could lead to premature wear or failure.

5. Drive shaft alignment is critical. Misalignment will cause reversing stresses in rotating
members and will lead to fatigue failure. Correct coupling specification is critical for systems
with more than one Electric Cylinder.

6. For systems with more than one Electric Cylinder, confirm that the Electric Cylinders and
shafts operate without binding or excessive force before power is applied.

7. When fastening the load to an Electric Cylinder, make sure the actuator is in the retracted
position. This positions the load accurately with respect to the lifting screw centerline. Never

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