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3) Excellent overload durability

The Models S 15SA and S 18SA provide excellent overload durability thanks to the improved cooling fan and

cooling air passage design as well as the high-power motor.

Overload durability is defined as the amount of thrust force required to raise the stator coil temperature by 200

K, and the ratio of these models to similar products C-1 and C-2 is indicated in Table 2.  Comparing these data,

the Models S 15SA and S 18SA prove to have the excellent overload durability against C-1 and C-2.

Table 2  Comparison of overload durability

Maker

HITACHI

C-1 / C-2

Model

S 15SA / S 18SA

Overload durability ratio

1.2

1

4) New dust seal

Newly-designed dust seals are adopted in the bearing chamber on the commutator side.  This ensures better

dust-resistance of the ball bearing in comparison with C-1 and C-2.  The key features of the new dust seal are

as follows.

(1) Width is increased to 6.5 mm (C: 2 mm)

(2) 2-step side construction is provided and each step has labyrinth grooves.

Fig. 2

Labyrinth grooves

Labyrinth grooves

2 mm

6.5 mm

C-1 / C-2

HITACHI

S 15SA / S 18SA

Summary of Contents for S 15SA

Page 1: ...POWER TOOLS TECHNICAL DATA AND SERVICE MANUAL DISC SANDERS S 15SA S 18SA SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST Nos S 15SA 0349 S 18SA 0350 Sep 1999 S MODELS S 15SA S 18SA ...

Page 2: ...re used in the place of company name s and model name s of our competitor s The symbol s utilized here is are as follows Symbol Utilized Competitor Company Name Model Name MAKITA 9218 SB C 2 S 18SA Symbol Utilized Competitor Company Name Model Name MAKITA 9215 SB C 1 S 15SA ...

Page 3: ...ns 7 7 2 Cautions on Name Plate 7 7 3 Precautions on Usage 7 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 8 8 1 Disassembly of the Armature Ass y and the Lock Lever Ass y 8 8 2 Disassembly of the Stator Ass y 9 8 3 Disassembly of the First Gear and the Ball Bearing 9 8 4 Reassembly 10 8 5 Tightening Torque 10 8 6 Wiring Diagrams 10 8 7 Insulation Tests 11 8 8 No Load Current Values 11 9 STANDARD RE...

Page 4: ...s S 15SA and S 18SA have the following features 1 High power motor 2 Convenient spindle lock 3 Dust proof bearing chamber 3 APPLICATIONS Sanding of metal and stone surfaces Preliminary sanding of metal surfaces before painting rust removal removing old paint before repainting Finishing of wood surfaces and reducing projections of joints or assemblies Preliminary sanding of wood surfaces before pai...

Page 5: ... 660 0 88 hp 940 1 26 hp 660 0 88 hp Actual product weight 2 kg 2 73 6 02 lbs 2 58 5 69 lbs 2 84 6 26 lbs 2 72 6 00 lbs Max output product weight W kg 344 0 21 hp lb 256 0 15 hp lb 331 0 20 hp lb 243 0 15 hp lb Capacity Maker Model Item 150 mm 180 mm HITACHI C 1 HITACHI C 2 S 15SA S 18SA 1 Max output may vary depending on the market 2 Actual product weight is a measured weight and excludes cord Ma...

Page 6: ... 15SA and S 18SA prove to have the excellent overload durability against C 1 and C 2 Table 2 Comparison of overload durability Maker HITACHI C 1 C 2 Model S 15SA S 18SA Overload durability ratio 1 2 1 4 New dust seal Newly designed dust seals are adopted in the bearing chamber on the commutator side This ensures better dust resistance of the ball bearing in comparison with C 1 and C 2 The key feat...

Page 7: ...mutator motor Trigger switch Material Housing Handle cover Glassfiber reinforced polyamide resin green Tale cover Gear cover Aluminum alloy die casting Inner cover Painting Gear cover Metallic silver Inner cover 2 7 kg 6 0 lbs 2 7 kg 6 0 lbs 2 7 kg 6 0 lbs 2 8 kg 6 2 lbs 3 4 kg 7 5 lbs 3 5 kg 7 7 lbs Corrugated cardboard box Rubber pad 150 mm 6 1 Rubber pad 180 mm 7 1 Side handle 1 Sanding disc gr...

Page 8: ...00 4 000 No load noise level dB A 85 82 Spindle lock Equipped NA 1 Side handle mounting location 1 1 Catalog 2 7 6 0 lbs 2 7 6 0 lbs Weight 2 Actual kg 2 7 2 8 2 6 2 7 6 0 lbs 6 2 lbs 5 7 lbs 6 0 lbs Catalog H mm 225 8 7 8 225 8 7 8 H mm 227 8 15 16 227 8 15 16 Dimensions Actual L mm 237 9 11 32 236 9 1 4 W mm 105 4 1 8 98 3 27 32 6 COMPARISONS WITH SIMILAR PRODUCTS 6 1 Specification Comparisons W...

Page 9: ...erior to C 2 HITACHI S 18SA Stator coil tamp rise Burn out point Load HITACHI S 18SA Rotation speed of spindle Rotation speed of spindle min Stator coil temp rise K C 2 C 2 0 1000 2000 0 200 400 3000 4000 5000 2 Comparisons in sanding performance The graph below shows the sanding performances comparing produced particle weight production 15 minutes of operation The sanding performance of the Model...

Page 10: ... the safe efficient use of the tool by the customer Salespersons must be thoroughly familiar with the contents of the Handling Instructions to be able to offer appropriate guidance to the customer during sales promotion 7 2 Cautions on Name Plate The following basic precautions are listed on the Name Plate attached to the main body of each tool 1 S 15SA 1 For Taiwan WARNING To reduce the risk of i...

Page 11: ... be removed from the Armature Ass y 13 13 and related parts by utilizing a J 130 sleeve special repair tool Code No 970907 and a J 131 plate special repair tool Code No 305711 4 The Ball Bearing 11 11 can be removed from the Armature Ass y 13 13 by utilizing the J 30 bearing puller ass y special repair tool Code No 970804 After the Ball Bearing has been removed the Lock Lever 12 12 can be easily t...

Page 12: ... taken out of the Housing Ass y 19 19 disassembly can be facilitated by heating the Housing Ass y to a temperature of approximately 60 C 140 F in an appropriate heating oven 8 3 Disassembly of the First Gear and the Ball Bearing 1 Loosen the four Tapping Screws D5 x 45 7 7 and remove the Gear Cover 8 8 together with the Spindle 4 4 the First Gear 9 9 and the related parts as a single unit 2 Remove...

Page 13: ...e that the Dust Seal 14 14 is assembled in the proper direction The Dust Seal 14 14 plays an important role in protecting the ball bearing against dust and must be replaced with a new one if disassembled 8 5 Tightening Torque D4 Tapping Screw W Flange 26 26 34 37 2 0 0 5 N m 20 5 kgf cm 1 5 0 4 ft lbs D5 Tapping Screw 7 7 2 9 0 5 N m 30 5 kgf cm 2 2 0 4 ft lbs D5 Hex Hd Tapping Screw 27 27 8 6 Wir...

Page 14: ...esistance 7 M Ω or more with DC 500V Megohm Tester Dielectric strength AC 4 000 V for 1 minute with no abnormalities 220 V 230 V AC 2 500 V for 1 minute with no abnormalities 110 V 127 V 8 8 No Load Current Values After no load operation for 30 minutes the no load current value should be as follows Voltage V Current A max 110 115 220 230 2 3 2 4 1 3 1 3 ...

Page 15: ... 10 20 30 40 50 60 min Fixed Variable G 15SA Work Flow Switch Cord Housing Ass y Stator Armature Ass y Ball Bearing 6000DD Ball Bearing 608VV Dust Seal Inner Cover General Assembly Gear Cover First Gear Ball Bearing 6201DD Spindle Bearing Cap G 18SA ...

Page 16: ... 13 Assembly Diagram for S 15SA ...

Page 17: ...VVM BALL BEARING 608VVC2PS2L 1 16 317 888 FAN GUIDE 1 17 340 446C STATOR ASS Y 110V 1 INCLUD 18 18 930 703 BRUSH TERMINAL 2 19 317 896 HOUSING ASS Y 1 INCLUD 21 24 20 NAME PLATE 1 21 958 900 BRUSH HOLDER 2 22 999 043 CARBON BRUSH 1 PAIR 2 23 945 161 BRUSH CAP 2 24 938 477 HEX SOCKET SET SCREW M5X8 2 25 317 894 TAIL COVER 1 26 302 086 TAPPING SCREW W FLANGE D4X20 BLACK 5 27 953 174 HEX HD TAPPING S...

Page 18: ... 076 SANDING DISCS 150MM C P30 10 PCS 1 605 314 077 SANDING DISCS 150MM C P36 10 PCS 1 606 314 078 SANDING DISCS 150MM C P40 10 PCS 1 607 314 079 SANDING DISCS 150MM C P50 10 PCS 1 608 314 080 SANDING DISCS 150MM C P60 10 PCS 1 609 314 081 SANDING DISCS 150MM C P80 10 PCS 1 610 314 082 SANDING DISCS 150MM C P100 10 PCS 1 611 314 083 SANDING DISCS 150MM C P120 10 PCS 1 OPTIONAL ACCESSORIES ITEM NO ...

Page 19: ... 16 Assembly Diagram for S 18SA ...

Page 20: ...110V 1 INCLUD 18 17 340 446E STATOR ASS Y 220V 230V 1 INCLUD 18 17 340 446H STATOR ASS Y 220V 230V 1 INCLUD 18 FOR ITA FRG FRA ESP CHN 18 930 703 BRUSH TERMINAL 2 19 317 896 HOUSING ASS Y 1 INCLUD 21 24 20 NAME PLATE 1 21 958 900 BRUSH HOLDER 2 22 999 043 CARBON BRUSH 1 PAIR 2 23 945 161 BRUSH CAP 2 24 938 477 HEX SOCKET SET SCREW M5X8 2 25 317 894 TAIL COVER 1 26 302 086 TAPPING SCREW W FLANGE D4...

Page 21: ... 18 PARTS S 18SA ITEM NO CODE NO DESCRIPTION NO USED REMARKS 40 500 240Z CORD 1 CORD ARMOR D8 8 FOR USA ALTERNATIVE PARTS 5 99 ...

Page 22: ...C P16 10 PCS 1 602 314 085 SANDING DISCS 180MM C P20 10 PCS 1 603 314 086 SANDING DISCS 180MM C P24 10 PCS 1 604 314 087 SANDING DISCS 180MM C P30 10 PCS 1 605 314 088 SANDING DISCS 180MM C P36 10 PCS 1 606 314 089 SANDING DISCS 180MM C P40 10 PCS 1 607 314 090 SANDING DISCS 180MM C P50 10 PCS 1 608 314 091 SANDING DISCS 180MM C P60 10 PCS 1 609 314 092 SANDING DISCS 180MM C P80 10 PCS 1 610 314 0...

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