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Delta SA446 - page 1
INSTRUCTION MANUAL 4" Belt / 6" Disc Sander (Model SA446) P ART NO. 905578 -05-03-02 Copyright © 2002 Delta Machinery ESP AÑOL: PÁGINA 21 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 1-800-463-3582). ...
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Delta SA446 - 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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Delta SA446 - page 3
3 ADDITIONAL SAFETY RULES FOR BEL T / DISC SANDERS WARNING : F AILURE TO FOLLOW THESE RULES MA Y RESUL T IN SERIOUS PERSONAL INJUR Y . SA VE THESE INSTRUCTIONS. Refer to them often and use them to instruct others. 1. DO NOT operate your machine until it is completely assembled and installed according to the instructions. 2. IF YOU ARE NOT thoroughl ...
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Delta SA446 - 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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Delta SA446 - 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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Delta SA446 - page 6
6 4" BEL T / 6" DISC SANDER P ARTS Fig. 1A Fig. 1B 1 Fig. 1A Sander Parts 1. Motor and Base 2. Disc T able 3. Belt and Pulley Guard 4. Disc Plate 5. Dust Chute 6. Support Rod 7. Lower Disc Guard 8. Sanding Disc 9. Backstop 10. Miter Gage 11. 1/8" Hex Wr ench 12. 6mm Hex Wr ench Fig. 1B Hardwar e 1. M8x1.25x20mm Hex Socket Head Screw ...
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Delta SA446 - page 7
7 ASSEMBL Y INSTRUCTIONS WARNING: FOR YOUR OWN SAFETY , DO NOT CONNECT THE SANDER TO THE POWER SOURCE UNTIL THE MACHINE IS COMPLETEL Y ASSEMBLED AND YOU READ AND UNDERSTAND THE ENTIRE OWNERS MANUAL. Fig. 2 Fig. 3 Fig. 4 2. Check to see if the belt (A) Fig. 4, is tensioned properly by applying light pr essur e to the belt at the center span of the p ...
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Delta SA446 - page 8
8 Fig. 8 Fig. 6 Fig. 7 Fig. 5 ASSEMBLING BEL T AND PULLEY GUARD Assemble the belt and pulley guard (A) Fig. 5, to the machine base using the two M6x1x30mm cheese head screws (B), as shown. ASSEMBLING SANDING DISC PLA TE 1. Back the 1/4-20x1/4" hex socket set screw (A) Fig. 6, out of the hole, just enough so that the set screw is not extending ...
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Delta SA446 - page 9
9 Fig. 12 Fig. 11 Fig. 10 Fig. 9 ASSEMBLING SANDING DISC 1. Make sure sanding disc plate (A) Fig. 9, is clean. 2. Peel backing from sanding disc and pr ess disc (B) firmly into position all the way around the sanding plate, as shown in Fig. 9. ASSEMBLING LOWER COVER FOR SANDING DISC Assemble the lower cover (A) Fig. 10, to the belt and pulley guard ...
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Delta SA446 - page 10
10 Fig. 15 Fig. 16 Fig. 14 Fig. 13 ASSEMBLING DUST CHUTE Align the three holes in the dust chute (A) Fig. 13 with the three holes in the left side of the sanding base. Place a M5.3 flat washer onto a M5x.08x10mm pan head screw (B) Fig. 13, and insert screw thr ough hole in dust spout and thread into taped hole in sander base. Repeat this process fo ...
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Delta SA446 - page 11
11 Fig. 18 3. An alternate method of securing the sander to a supporting surface is to fasten the sander base to a mounting board 18" x 24" minimum size. The diagram, shown in Fig. 17, illustrates the size and center to center distance of the holes to be drilled in the mounting board. NOTE: For proper stability , the holes in the mounting ...
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Delta SA446 - page 12
12 Fig. 25 CHANGING POSITION OF SANDING ARM 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. The sanding arm (A) can be used in the horizontal position, as shown in Fig. 25; vertical position, as shown in Fig. 26; or any angle in between by loosening screw (B), positioning the arm (A) to the desired angle and tightening screw (B). Fig. 26 A B A B Fig. 2 ...
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Delta SA446 - page 13
13 Fig. 28 Fig. 29 Fig. 30 Fig. 31 3. Place a square (B) Fig. 29, on the sanding belt with one end of the square against the backstop, and check to see if the backstop is square with the sanding belt. 4. If an adjustment is necessary , loosen scr ew (C) Fig. 29, and adjust the backstop accordingly . ADJUSTING BACKSTOP SQUARE WITH SANDING BEL T 1. D ...
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Delta SA446 - page 14
14 Fig. 32 Fig. 33 Fig. 34 Fig. 35 3. If an adjustment to the table is necessary , loosen the three scr ews (B) Fig. 34, that fasten the table to the table mounting bracket and trunnion and adjust the table accordingly - then tighten the thr ee scr ews (B). MITER GAGE A miter gage (A) Fig. 35, is supplied with your machine and is used with the disc ...
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Delta SA446 - page 15
15 Fig. 39 Fig. 38 Fig. 37 Fig. 36 USING T ABLE ASSEMBL Y WITH SANDING BEL T When the sanding arm (A) Fig. 36, is used in the vertical position, the complete table assembly (B) can be moved from the disc unit to the belt unit as follows: 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. Remove the backstop (C) Fig. 36. 3. Thread the M8x1.25x20mm hex sock ...
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Delta SA446 - page 16
16 Fig. 40 Fig. 41 Fig. 42 Fig. 43 REPLACING SANDING BEL T 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. Loosen screw (A) Fig. 40, and r emove backstop (B). 3. Slide tension lever (C) Fig. 41, to the right to release tension on sanding belt and remove sanding belt (D) fr om both sanding drums, as shown. 4. Slide new sanding belt over both sanding dru ...
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Delta SA446 - page 17
17 Fig. 44 4. Peel off old disc (E) as shown in Fig. 44. 5. Make sure the disc plate (F) Fig. 44, is clean and peel backing from new sanding disc. Pr ess the new sanding disc firmly into position on disc plate (F) and replace lower cover and table assembly which wer e removed in STEPS 2 and 3 . OPERA TION Fig. 45 Fig. 46 SURF ACING OR EDGE SANDING ...
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Delta SA446 - page 18
18 Fig. 47 SANDING INSIDE CURVES Inside curves can be sanded on the top sanding drum, as shown in Fig. 47. Fig. 48 SANDING OUTSIDE CURVES Outside curves should be sanded on the sanding disc as shown in Fig. 48. WARNING: AL WA YS SAND ON THE LEFT (DOWNWARD) SIDE OF THE SANDING DISC, AS SHOWN. SANDING ON THE RIGHT (UPWARD) SIDE OF THE SANDING DISC CO ...
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Delta SA446 - page 19
19 NOTES ...
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Delta SA446 - page 20
20 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 ...
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