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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Singer 6550, 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 Singer 6550 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 Singer 6550. 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 Singer 6550 should contain:
- informations concerning technical data of Singer 6550
- name of the manufacturer and a year of construction of the Singer 6550 item
- rules of operation, control and maintenance of the Singer 6550 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 Singer 6550 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 Singer 6550, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Singer 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 Singer 6550.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Singer 6550 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
(Model 991C) 029190037(1 版 ) Model 6550 S I N G E R R Parts List[...]
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Page 2
[...]
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Page 3
PageA Page A No. P a r t N o . Description No. P a r t N o . Description No. P a r t N o . Description 1 EJ D6 03 32 10 Back cover 3 7 V60273006 D i a l t e n s i o n s p r i n g p l a t e 73 E4C6013210 Sew ing table body cov er 2 V610155000 T h r e a d g u i d e c o m p l e t e 38 EAC7783210 Dial tension knob 74 E1A1863210 Cord reel cover 3 004230[...]
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Page 4
B[...]
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Page 5
Page B Page B No. P a r t N o . Description 1 E1A2683001 Thread take up lever 2 E1A2653000 Thread take up lever supporter 3 003010036* E-Ring (ETW-3) 4 V60223003 T h r e a d t ake up lever supporter shaft 5 E1A2313003 Thread take up l ever supporter sha ft plate 6 004240106* Set screw (M4*8 A) 7 E1A2663000 A rm shaft balance pin complete 8 E1A22130[...]
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Page 6
C[...]
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Page 7
Page C Page C No. P a r t N o . Description No. P a r t N o . Description No. P a r t N o . Description 1 E1A0013000 Arm 37 E3 A02 53 00 4 Needle plate 73 E1A1 54 30 06 Reverse lever 2 E1A1373003 BH selector plate 3 8 NB1293000 N e e d l e p l a t e c o v e r 74 0 0 4 2 4 0 8 8 3 Reverse lev er set screw (M4) 3 E1A1393003 BH slide plate 39 00424085[...]
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Page 8
D[...]
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Page 9
Page D Page D No. P a r t N o . Description No. P a r t N o . Description No. P a r t N o . Description 1 E4 C0 11 40 00 Pattern cam contact complete 37 E4A020300 0 St re tc h st it ch r el ease 73 F4A3303003 Se l e c t o r d i a l p l a t e 2 E1A 0673003 P at te rn c am con tac t p lat e ( b ack) 38 0042405 03* Set screw (M4*4 C) 74 E1 A1243006 Se[...]
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Page 10
E[...]
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Page 11
Page E Page E No. P a r t N o . Description No. P a r t N o . Description 1 E1A1453006 BH lev er plate 3 7 001251409 Foot controller (4C-316B202ZH) U.S.A . 2 E1A1533003 BH positioned plate 3 8 002425118 S w i t c h ass’y 3 E1A1513000 BH mov ement crank 39 E1A2373000 Shield 4 004230433 S e t s c r e w ( M 3 * 3 C ) 5 E1A1523003 BH positioned plate[...]
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Page 12
F[...]
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Page 13
Page F Page F No. P a r t N o . Description No. P a r t N o . Description No. P a r t N o . Description 1 N B 0 6 9 3 0 0 0 Bobbin shaft oil cloth 37 004104012* Set screw (1/18*44*5) 73 E1A1873003 Spring 2 E1A2033000 Bobbin shaft 38 E1 A0443003 Feed rock crank pin (1) 7 4 H12 883000 S t e e l b a l l 3 N B 0 6 7 3 0 0 0 Bobbin shaft washer (2) 39 E[...]
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Page 14
G R E G N I[...]
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Page 15
Page G Page G No. P a r t N o . Description 1 006900008 H e m m e r f o o t ( K ) 2 006918008 Z i g z a g f o o t ( C ) 3 006914008 B u t t o n s e w o n f o o t 4 006907008 O v e r castting foot (E) 5 006904008 B l i n d h e m f o o t ( F ) 6 006905008 Z i p p e r f o o t ( I ) 7 006171008 B u t t onhole foot (D) 8 006008001 Q u i l t i n g b a r [...]