Instruction/ maintenance manual of the product 4220 Hubbell
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Hubbell Industrial Controls, Inc. EUCLID™ AC & DC POWER LIMIT SWITCHES SIZE 2, 3, 4, 5, 6, & 6A SPECIFICATIONS 4220 June 1994 Repl.: October 1984 General Information D-C Limit Switches are devices that are used to interrupt the main power circuit, setting up a dynamic braking circuit that quickly stops hook travel with a minimum of drift.
Page 2 Description Positive trigger lock -out Quick make-and-brake contacts, which directly handle the motor circuit, are locked in position until tripped.
Page 3 NOTE: Catalog dimensions are no t to be use d for constru ction pu rposes. Prints will be furnished upon rece ipt of your order w ith y our request for prints.
Hubbell Industrial Controls, Inc. A subsidiary of Hubbell Inc. 4301 Cheyenne Dr., Archdale, NC 27263 Telephone (336) 434-2 800 • FAX (336) 434-2803 http://www.hubbell-icd.com sales@hubbell-icd.com ER-694-2M © 1994 Printed in U.S.A. LIMIT SWITCH RESISTORS FOR USE WITH DYNAMIC LOWERING CRANE HOISTS 250 VOLTS D.
An important point after buying a device Hubbell 4220 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Hubbell 4220 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Hubbell 4220 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Hubbell 4220 you will learn all the available features of the product, as well as information on its operation. The information that you get Hubbell 4220 will certainly help you make a decision on the purchase.
If you already are a holder of Hubbell 4220, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Hubbell 4220.
However, one of the most important roles played by the user manual is to help in solving problems with Hubbell 4220. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Hubbell 4220 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
