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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Celestron Feathertouch SCT Microfocuser, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Celestron Feathertouch SCT Microfocuser one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Celestron Feathertouch SCT Microfocuser. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Celestron Feathertouch SCT Microfocuser should contain:
- informations concerning technical data of Celestron Feathertouch SCT Microfocuser
- name of the manufacturer and a year of construction of the Celestron Feathertouch SCT Microfocuser item
- rules of operation, control and maintenance of the Celestron Feathertouch SCT Microfocuser item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Celestron Feathertouch SCT Microfocuser alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Celestron Feathertouch SCT Microfocuser, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Celestron service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Celestron Feathertouch SCT Microfocuser.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Celestron Feathertouch SCT Microfocuser item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Installation Instructions – Celestron 11” Telescopes Important: The telescope optical tube must b e positioned hori zontall y before removing the original focus assemb ly. If the telescope is not horiz ontal the primar y mirror could move during the installati on. Required Tools: Phillips Screwdriver 1/16” Hex-Head Wrench (Not required for Ne[...]
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Page 2
Step 2 Move Primary Mirror Back Turn the brass focus shaft clockwis e to bring the mi rror back and expose the Phill ips- head screw at the end of th e threaded focus rod. Step 3 Remove Set Scre w Use screwdriver to remo ve the small Philli ps screw from the end of the threaded focus rod.[...]
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Page 3
Step 4 Remove Focus A ssembl y Cover Pl ate Use screwdriver to remo ve three screws from the focus assembl y cover plate (the thre e screws around the outsid e of the focus shaft). Rem ove the cover plate. Hang on to the three Phillips screws as t hey will be used to attach the S CT MicroFocuser. Step 5 Remove Focus Bearing A ssembl y Turn the bras[...]
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Page 4
Step 6 Thread on SCT MicroFocu ser Begin threading the SCT Mi croFocuser onto the threaded focus rod. When there is onl y about 1/4" left to go, simply push the focuser th e rest of the wa y in. This will take up some of the chan ge in focus from when you removed the original focuser, making it quicker to return to focus the first ti me you us[...]