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Exactly what was needed to assess the product - excellent value and great service
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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
MOTOR FAN REPLACEMENT
Removal
1. Mark the position of the fan case's location on the motor with a pencil, or score it with a sharp object before disassembly. This will aid you in reassembling the fan case, (Fig. 16). 2. The fan case has three (3) crimped sections on it to hold the case onto the motor. These will have to be straightened by using a pair of needle nose pliers and by tapping out on the crimp area with a flat blade screwdriver. Be sure and straighten all three (3) crimped areas, (Fig. 16). Remove the fan case from the motor unit. 3. Tools required to remove the fan from the shaft will be a 1/8 - inch Allen wrench, a 1/2 -inch offset box wrench, torque wrench, and a hammer. NOTE: Be careful when handling the sheet metal parts as there could be sharp edges. Do not scratch or bend the motor shaft. Scratches will cause belt breakage during operation. 4. Place the 1/2 - inch box wrench over the 1/2 -inch hex nut that holds the fan onto the motor shaft, (Fig.17). While holding the wrench on the nut, place the 1/8 -inch Allen wrench into the end of the motor shaft and loosen the nut while holding the Allen wrench still. The nut will have to be turned clockwise as it is a left-hand thread. After removing the nut, remove the fan, (Fig. 17). There is a spacer left on the motor that is not required to be removed. If spacer is removed, reassemble per exploded view, (Fig. 19). * Some models will have this washer and spacer.
Tap Down on the 3 Crimped Areas
Mark Case As Shown
Crimped Area (3)
(Fig. 16)
/8" Allen Wrench
1
½" Offset Box Wrench ½" Nut Washer Flat Washer Fan Spacer
* *
Spacer
Installation
1. Place the new fan onto the motor shaft, making sure that the spacer is still on the motor. The large diameter hole, approximately 1 1/8 inch, will be on the top of the fan as you install it. 2. Install the flat washer with the burr side of the washer facing away from the fan, (Fig. 19). Screw the nut onto the motor shaft, turning it counterclockwise, left-hand threads, and torque to 20-30-inch pounds. Be sure to hold the motor shaft by placing the 1/8-inch allen wrench into the motor shaft end while torquing the nut, (Fig. 17). 3. Align your marks on the fan case as you put the fan case back on and tap around the case uniformly. Tap the three (3) crimped areas over and then use a flat blade screwdriver to recrimp them. 4. See Fig. 18 for reassembly specifications.
5a.
(Fig. 17)
EXPLODED VIEW
Ref No. 1. Part Name Fan Case
2. 3. 4.
Nut Washer Fan
Burr Side
Smooth Side
* *
Use these specifications to assure that the fan case has been tapped back to the original position.
4.2"/4.5" (106/114 mm)
5.
Spacer * NOTE:
Space 5 is used on some models. 5a washer and 5b space used on other models.
5b.
These measurements are approximate.
(Fig. 18)
6. 7. 8.
Brush Assembly Bracket Screw A
(Fig. 19)
- 18 -
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