TROUBLESHOOTING GUIDE 1. Troubleshooting and Repair Symptom Possible cause Troubleshooting Repairing • Insufficient • Check the connection of flat cable (B). • Securely connect No motor connection of flat (See [1. Reassembly of the Wiring flat cable (B). motion cable (B) of switch Ass'y] on page 5.) •...
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Symptom Possible cause Troubleshooting Repairing • Controller failure • Visually check the PCB surface (for • Replace the No speed-up dust, water, and drop-caused controller. (Speed change damage). disabled) • Insufficient • Check the flat cable (B) connection. • Securely connect connection of (See [1.
1. Precautions on Disassembly and Reassembly Numbers enclosed in [Bold] and <Bold> correspond to item numbers in the Parts Lists and exploded assembly diagrams of these models. ( [Bold] : WH 14DBDL and WH 18DBDL, <Bold> : WR 14DBDL and WR 18DBDL) Disassembly 1.
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3. Removal of the Housing (A). (B) Set (1) Remove the nine Tapping Screws (W/Flange) D4 x 20 (Black) [39]<36>. You can detach Housing (B) of the Housing (A),(B) Set [26]<23> and Strap (Black) [33]<30>. (2) You can remove the Hammer Case [6A]<2> and hammer assembly, Inner Cover [24]<21>, Rotor Pinion [25]<22>, Stator FET PCB [37A]<34>, and DC-Speed Control Switch [35]<32>...
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5. Disassembly of the Stator FET PCB and Rotor Pinion (1) The Rotor Pinion [25]<22> has a strong magnetic force. Securely support the Inner Cover [24]<21> and pull out the Stator from the Stator FET PCB [37A]<34> in the direction of (B). Fig.3 •...
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7. Disassembly of the Wiring Ass’y (1) Remove the two Machine Screws (W/Sp. Washer) M3 x 5 [38]<35> that fasten the terminals of lead wires (red and black) of the Stator FET PCB [37A]<34> and DC-Speed Control Switch [35]<32>. (2) Scrape away silicon grease on the connector of the DC-Speed Control Switch [35]<32> with the edge of a flat-edge screwdriver or similar tool, slowly pull up the connector zip and gradually pull out flat cable (B) of the Controller [34]<31>.
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Reassembly Notices on reassembly: For reassembly, reverse the disassembly steps but note the following: 1. Reassembly of the Wiring Ass’y (1) Reconnect the DC-Speed Control Switch [35]<32>, Controller [34]<31>, and Stator FET PCB [37A]<34> according to the wiring diagram when replacing those components. (2) Note the following when connecting flat cable (B) to the connector of the DC-Speed Control Switch [35]<32>.
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Fig.6 • Reassembly of the power supply and its related parts Wiring diagram Stator FET PCB [37A]<34> Lead wire (black) Lead wire (red) Machine Screw (W/Sp. Washer) M3 x 5 [38]<35> LED light DC-Speed Control Switch [35]<32> Connector cable (A) Flat cable (B) Connector cable (A) Pull up...
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Fig.7 • Reassembly of the power supply and its related parts Thread lead wires through the ribs of housing (A). Lead wire (black) Lead wire (red) Fig.8 • Reassembly of the power supply and its related parts Push connector cable and lead wires into Push lead wires into the lead wire the lead wire threading grooves.
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2. Mounting the mechanical parts (1-1) Model WH 14DBDL / WH 18DBDL Load 28 Steel Balls D3.175 [11]<8> in the Hammer [10A]<7A> and then reassemble Washer (J) [12]<9>, Hammer Spring (H) [13A]/Hammer Spring (F) <10>, Washer (S) [14]<11>, and the Spindle [16]<13>...
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3. Reassembly of the Housing (1) Bond Damper (A) [23]<20> to housings (A) and (B) with adhesives before remounting parts on housing (A). (Fit the groove of Damper (A) [23]<20> to the rib of the housing.) Apply silicon rubber (ThreeBond 1211) to the specified points in the figure. (2) Assemble the hammer assembly, Hammer Case [6A]<2>, Inner Cover [24]<21>...
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Fig.11 • Reassembly of the Housing (A),(B) Set Make sure the Hammer Case [6A]<2> is securely fitted to housing (A). Hammer Case [6A]<2> Fit the LED light to the boss of the Hammer Case [6A]<2>. Detent boss Make the Hammer Case [6A]<2> detent touch the housing here.
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Fig.12 • Reassembly of the Housing (A),(B) Set Capacitor Packing [32]<29> Packing [32]<29> Lock Nut M4 (Black) [31]<28> Strap (Black) [33]<30> insertion boss 4. Reassembly of Exterior Parts (1) Place the Front Cap [5]<1> over the assembled housing. Make sure the LED light PCB is within the LED holder, and then fit the depressed portion of the LED holder to the boss of the Hammer Case [6A]<2>.
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5. Mounting Guide Sleeve (D) (Models WH 14DBDL and WH 18DBDL) (1) Put two Steel Balls D3.5 [7] into the hole of Anvil Fig.14 • Reassembly of the guide sleeve (C) [8A], reassemble Guide Sleeve (D) [4], Guide Spring (D) [3], and Washer (D) [2] in this...
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No-load current No-load current WH 14DBDL: 3.5A ± 1.0A (DC 15.8V [equivalent to voltage of a fully charged battery]) WH 18DBDL: 2.5A ± 1.0A (DC 19.8V [equivalent to voltage of a fully charged battery]) WR 14DBDL: 3.5A ± 1.0A (DC 15.8V [equivalent to voltage of a fully charged battery]) WR 18DBDL: 3.0A ±...
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Connecting Diagram • Wiring diagram Stator FET PCB [37A]<34> Push LED light lead wire into the lead wire groove. Push connector cable and lead wire into the lead wire threading Pushing Button (B) [36]<33> groove. Push connector cable into the lead wire threading groove.
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Compatibility Almost all components of the Models WH 14DBDL, WH 18DBDL, WR 14DBDL and WR 18DBDL are common and sharable. However, some parts are not interchangeable as listed below. Do not mix these parts up for disassembly and reassembly. Part name...
Part name WH 14DBDL WH 18DBDL WR 14DBDL WR 18DBDL Stator FET PCB 805D 804C 204B 203A Symbol on Symbol on Symbol on Symbol on Stator FET PCB Stator FET PCB Stator FET PCB Stator FET PCB [37A]<34> [37A]<34> [37A]<34>...
STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL 60 min. Fixed Work Flow WH 14DBDL Hook WH 18DBDL Housing (A). (B) Set Inner Cover Rotor Pinion Controller DC-Speed Control Switch Stator FET PCB General Assembly Hammer Hammer Case Guide Spring (D)
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Variable MODEL 60 min. Fixed Work Flow WR 14DBDL Hook WR 18DBDL Housing (A). (B) Set Inner Cover Rotor Pinion Controller DC-Speed Control Switch Stator FET PCB General Assembly Hammer Hammer Case Anvil (D) Ass'y Steel Ball Ring Gear (E) D3.175 Hammer Spring (F)
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LIST NO. H886 CORDLESS IMPACT DRIVER 2011 · 5 · 12 Model WH 14DBDL (E2)
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PARTS WH 14DBDL ITEM CODE NO. DESCRIPTION REMARKS USED 330-619 RETAINING RING 330-856 WASHER (D) 331-284 GUIDE SPRING (D) 322-717 GUIDE SLEEVE (D) 332-198 FRONT CAP 333-745 HAMMER CASE 319-535 STEEL BALL D3.5 (10 PCS.) 333-744 ANVIL (D) 333-743 ANVIL (C)
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STANDARD ACCESSORIES WH 14DBDL ITEM CODE NO. DESCRIPTION REMARKS USED CHARGER (MODEL UC 18YRSL) CHARGER (MODEL UC 18YML2) 330-592 CASE 329-897 BATTERY COVER OPTIONAL ACCESSORIES OPTIONAL ACCESSORIES ITEM ITEM CODE NO. CODE NO. DESCRIPTION REMARKS USED USED 321-823 DRILL CHUCK AND ADAPTER SET INCLUD.
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WH 14DBDL ITEM CODE NO. DESCRIPTION REMARKS USED - 4 - Printed in Japan 5 - 11 *ALTERNATIVE PARTS (110512N)
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LIST NO. H887 CORDLESS IMPACT DRIVER 2011 · 5 · 12 Model WH 18DBDL (E2)
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PARTS WH 18DBDL ITEM CODE NO. DESCRIPTION REMARKS USED 330-619 RETAINING RING 330-856 WASHER (D) 331-284 GUIDE SPRING (D) 322-717 GUIDE SLEEVE (D) 332-198 FRONT CAP 333-745 HAMMER CASE 319-535 STEEL BALL D3.5 (10 PCS.) 333-744 ANVIL (D) 959-154 STEEL BALL D5.556 (10 PCS.) 333-748 HAMMER 959-148...
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STANDARD ACCESSORIES WH 18DBDL ITEM CODE NO. DESCRIPTION REMARKS USED CHARGER (MODEL UC 18YRSL) CHARGER (MODEL UC 18YML2) 330-592 CASE 329-897 BATTERY COVER OPTIONAL ACCESSORIES OPTIONAL ACCESSORIES ITEM ITEM CODE NO. CODE NO. DESCRIPTION REMARKS USED USED 321-823 DRILL CHUCK AND ADAPTER SET INCLUD.
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WH 18DBDL ITEM CODE NO. DESCRIPTION REMARKS USED - 4 - Printed in Japan 5 - 11 *ALTERNATIVE PARTS (110512N)
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LIST NO. H884 CORDLESS IMPACT WRENCH 2011 · 5 · 12 Model WR 14DBDL (E2)
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PARTS WR 14DBDL ITEM ITEM CODE NO. CODE NO. DESCRIPTION REMARKS USED USED 332-198 FRONT CAP 332-200 HAMMER CASE 324-257 PIN RETAINER (B) 332-196 ANVIL (D) ASS'Y INCLUD. 3, 5 324-256 PLUNGER (B) 959-154 STEEL BALL D5.556 (10 PCS.) 333-749 HAMMER 959-148 STEEL BALL D3.175 (10 PCS.)
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STANDARD ACCESSORIES WR 14DBDL ITEM CODE NO. DESCRIPTION REMARKS USED CHARGER (MODEL UC 18YRSL) CHARGER (MODEL UC 18YML2) 330-592 CASE 329-897 BATTERY COVER OPTIONAL ACCESSORIES OPTIONAL ACCESSORIES ITEM ITEM CODE NO. CODE NO. DESCRIPTION REMARKS USED USED 873-537 SOCKET PIN 873-187 O-RING (J1SW1516) 991-481...
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WR 14DBDL ITEM CODE NO. DESCRIPTION REMARKS USED - 4 - Printed in Japan 5 - 11 *ALTERNATIVE PARTS (110512N)
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LIST NO. H885 CORDLESS IMPACT WRENCH 2011 · 5 · 12 Model WR 18DBDL (E2)
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PARTS WR 18DBDL ITEM ITEM CODE NO. CODE NO. DESCRIPTION REMARKS USED USED 332-198 FRONT CAP 332-200 HAMMER CASE 324-257 PIN RETAINER (B) 332-196 ANVIL (D) ASS'Y INCLUD. 3, 5 324-256 PLUNGER (B) 959-154 STEEL BALL D5.556 (10 PCS.) 333-749 HAMMER 959-148 STEEL BALL D3.175 (10 PCS.)
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STANDARD ACCESSORIES WR 18DBDL ITEM CODE NO. DESCRIPTION REMARKS USED CHARGER (MODEL UC 18YRSL) CHARGER (MODEL UC 18YML2) 330-592 CASE 329-897 BATTERY COVER OPTIONAL ACCESSORIES OPTIONAL ACCESSORIES ITEM ITEM CODE NO. CODE NO. DESCRIPTION REMARKS USED USED 873-537 SOCKET PIN 873-187 O-RING (J1SW1516) 991-481...
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WR 18DBDL ITEM CODE NO. DESCRIPTION REMARKS USED - 4 - Printed in Japan 5 - 11 *ALTERNATIVE PARTS (110512N)