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Probably it never existed a 1081 official service manual from Commodore, it's look more like a NAPCEC service manual & diagrams compilation of the 1084 series and his variants, like the nap6523, 8cm505, 1084S, 1084P and obviously the 1081. It's more complete than other scans and the quality of the scans also are far superior. It has two circuit diagrams variants of the 1081, mono and stereo versions. It doesn't include a diagram for the Philips CM8500 or CM8501, they look like the 1081 but they are slightly different.
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Rapid, clear well done as all the scheme I downloaded from this site. Great job very functional and very useful
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Great copy of the manual, has all information required for servicing,
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I work at an authorized service center and I can tell if a manual is as it should be. This one is. It may be a scan, but a very good one at that. The interesting part for me was the curcuit diagram which was scanned at high quality, making it as good as the original. I will definitely be back as a customer. I need not say this, but I will: the price was the best. Thank you owner-manuals.com .
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really a very good manual even sometimes the quality is no so good as before still very readible and very very useful!
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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