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The rules should oblige the seller to give the purchaser an operating instrucion of Delta GR250, 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.
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Unfortunately, only a few customers devote their time to read an instruction of Delta GR250. 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.
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First and foremost, an user manual of Delta GR250 should contain:
- informations concerning technical data of Delta GR250
- name of the manufacturer and a year of construction of the Delta GR250 item
- rules of operation, control and maintenance of the Delta GR250 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Delta GR250 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 Delta GR250, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Delta 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 Delta GR250.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Delta GR250 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
INSTRUCTION MANUAL 6" V ariable Speed Grinder / Sharpener (Model GR250) P ART NO. 905595 - 05-03-02 Copyright © 2002 Delta Machinery ESP AÑOL: PÁGINA 13 T o learn more about DEL T A MACHINER Y visit our website at: www .deltamachinery .com. For Parts, Service, W arranty or other Assistance, please call 1-800-223-7278 ( In Canada call 1-800-[...]
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Page 2
2 GENERAL SAFETY RULES W oodworking can be dangerous if safe and pr oper operating procedur es ar e not followed. As with all machinery , ther e are certain hazar ds involved with the operation of the pr oduct. Using the machine with respect and caution will considerably lessen the possibility of personal injury . However , if normal safety precaut[...]
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Page 3
3 SA VE THESE INSTRUCTIONS. Refer to them often and use them to instruct others. ADDITIONAL SAFETY RULES FOR GRINDERS 1 . DO NOT OPERA TE THIS MACHINE until it is assembled and installed according to the instructions. 2. OBT AIN ADVICE FROM YOUR SUPERVISOR, instructor , or another qualified person if you are not familiar with the operation of this [...]
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Page 4
4 POWER CONNECTIONS A separate electrical circuit should be used for your machines. This cir cuit should not be less than #12 wir e and should be protected with a 20 Amp time lag fuse. If an extension cor d is used, use only 3-wir e extension cords which have 3- prong gr ounding type plugs and matching r eceptacle which will accept the machine’ s[...]
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Page 5
Use proper extension cor ds. Make sur e your extension cord is in good condition and is a 3-wir e extension cor d which has a 3-prong gr ounding type plug and matching r eceptacle which will accept the machine’ s plug. When using an extension cord, be sur e to use one heavy enough to carry the curr ent of the machine. An undersized cord will caus[...]
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Page 6
6 GRINDER P AR TS Fig. 2 1. Grinder 2. 1/4-20x1/4" hex head screw (2) 3. 5/16-18x5/8" hex head screw (4) 4. Eye shield bolt (2) 5. 5/16-18x3/4" knob (2) 6. Eye shield knob (2) 7. Eye shield spacer (2) 8. 5/16" flat washer (6) 9. 1/4" flat washer (4) 10. Eye shield (2) 11. Left tool rest 12. Left tool rest arm 13. Left spark[...]
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Page 7
7 ASSEMBL Y WARNING: FOR YOUR OWN SAFETY , DO NOT CONNECT THE TOOL TO THE POWER SOURCE UNTIL THE MACHINE IS COMPLETEL Y ASSEMBLED AND YOU READ AND UNDERST AND THE ENTIRE INSTRUCTION MANUAL. TOOL RESTS 1. Assemble left tool rest (A) Fig. 3, to left tool rest arm (B), as shown, and fasten with one 5/16-18x3/4" knob (C) and 5/16" flat washer[...]
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Page 8
8 2. Align the holes in the eye shield with the holes in the spark guard and place the eye shield spacer (A) Fig. 7, in the space in the spark guard as shown. 3. Insert the eye shield bolt (A) Fig. 8, through the hole in the eye shield (B), eye shield spacer (C), and spark guard (D). 4. Place a 1/4" flat washer (E) Fig. 8, onto the end of the [...]
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Page 9
9 V ARIABLE SPEED CONTROL The grinder is equipped with a variable speed control (B) Fig. 10. When the variable speed control knob is positioned to the furthermost left position (counter clockwise), the RPM is 2000. The rotation incr eases as the knob is turned clockwise. When the variable speed control knob is positioned to the furthermost right po[...]
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Page 10
10 CHANGING GRINDING WHEELS 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. When changing wheels, r emove the scr ews attaching the side covers to the grinder and remove the side covers. 3. T o prevent shaft r otation, place a wedge between the grinding wheel and the tool rest. NOTE: Facing the fr ont of the grinder: to replace the wheel on the left si[...]
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11 NOTES[...]
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Page 12
12 T wo Y ear Limited W arranty Delta will repair or r eplace, at its expense and at its option, any Delta machine, machine part, or machine accessory which in normal use has proven to be defective in workmanship or material, pr ovided that the customer returns the product prepaid to a Delta factory service center or authorized service station with[...]