Joyce Electric Cylinders with Ball Screw - Manual (Page 3)

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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 Magnuson-
Moss 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, (ECB), 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, (ECB), 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 (ECB) 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, (ECB) 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 Ball Screw Electric Cylinders to prevent the load from drifting
when power is off.
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 (ECB) meets or exceeds the load.
4. The Electric Cylinder (ECB) 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
pull the translating tube to one side to make connection with your structure. Fully extend the
Electric Cylinder to make sure the load is aligned with the translating tube.