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1. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY
Please pay particular attention to the following items during disassembly and reassembly.
Since the SV 8SA and the SV 12SF are of the same structure, explanation is given only on the Model SV 8SA.
The [Bold] numbers in the description correspond to the item numbers in the parts exploded diagram of the
SV 8SA and the numbers in <Bold> to those in the parts exploded diagram of the SV 12SF.
1-1. Disassembly
1-1-1. Remove the Felt Pad or the Pad [19] <19>
Remove the Felt Pad or the Pad [19] <19> by removing the four M4 x 10 Machine Screws [20] <20>.
1-1-2. Remove the Base [18] <18>
Remove the Base [18] <18> together with the Paper Clips [37] <37> and the Felt [36] <36> by pulling out the
Base [18] <18> in the arrow-indicated direction.
1-1-3. Remove the Fan Guide [34] <34>
Remove the Fan Guide [34] <34> removing the two D4 x 20 Tapping Screws [35] <35>.
1-1-4. Remove the Thrust Washer [32] <32> , the Ball Bearing 6001 DDUCM [31] <31> , the Dust
Washer [30] <30> and the Balancer Fan [29] <29>
Remove the Thrust Washer [32] <32> , the Ball Bearing 6001 DDUCM [31] <31> , the Dust Washer
[30] <30> and the Balancer Fan [29] <29> by removing the M4 x 12 Machine Screw [33] <33>.
MODELS
[18] <18>
[19] <19>
[20] <20>
SV 8SA/SV 12SF
[29] <29>
[30] <30>
[31] <31>
[32] <32>
[33] <33>
[34] <34>
[35] <35>
[36] <36>
Pull out
[37] <37>
Fig. 3
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Summary of Contents for Hitachi SV 8SA
- Page 1 Please pay particular attention to the following items during disassembly and reassembly. Since the SV 8SA and the SV 12SF are of the same structure, explanation is given only on the Model SV 8SA. The [Bold] numbers in the description correspond to the item numbers in the parts exploded diagram of the SV 8SA and the numbers in <Bold>...
- Page 2 1-1-5. Remove the Housing (B) [3] <3> and the Legs [16] <16> After removing the Base [18] <18> and the Balancer Fan [29] <29> as indicated above, cut the Grip Tape [4] <4> along the perforations with a cutter. Then remove the four Tapping Screws with D4 Flanges [2] <2> securing the Housing (A) [12] <12>...
- Page 3 1-2-3. Installing the Base [18] <18> Install the Legs [16] <16> so that their lower parts are Lower part fitted within the Ribs. (See Fig.5.) [18] <18> 1-3. Screw Tightening Torque Fig. 5 D4 x 10 Tapping Screws with Flange D4 x 16 Tapping Screws with Flange 1.96 ±...
- Page 4 Wiring Diagram with Noise Suppressor With Noise Suppressor Brush Holders [14] <14> Internal Wire Carbon Brushes [15] <15> (brown) [6] <6> Install with the terminal screw facing up. Cord [10] <10> Slide Switch [22] <22> Internal Wire (blue) [26] <26> Tab Terminal (brown) [27] <27>...
- Page 5 Fit the lnternal Wire (brown) [6] <6> in this gap. Fit the lnternal Wires (brown) (black) of the Cord in this groove so that they do not contact the Housing’s conductive part. Fit the Internal Wire of the Tab Terminal Internal Wire (black) of (brown) [27] <27>...
- Page 6 Without Noise Suppressor (for the U.S.A.) Tab Terminal (brown) [27] <27> Slide Switch [22] <22> Internal Wire (brown) [6] <6> Black Cord White Internal Wire (blue) [26] <26> Pillar Terminal [21] <21> Tab Terminal (blue) [7] <7> Fig. 12 1-5. Insulation Tests On completion of disassembly and repair, measure the insulation resistance and conduct a dielectric strength test.
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Page 7: Standard Repair Time (Unit) Schedules
Ball Bearing Grip Tape Balancer Fan (608VVC2) Felt Pad 0 min. Base x 2 pcs. Paper Clip SV 8SA Cord 10 min. Housing (A) SV 12SF Housing (B) Leg x 2 pcs. Others 20 min. Brush Holder x 2 pcs.