Related Manuals for Hitachi WF 4V
Summary of Contents for Hitachi WF 4V
- Page 1 MODEL WF 4V POWER TOOLS TECHNICAL DATA AUTOMATIC SCREW DRIVER WF 4V SERVICE MANUAL LIST No. 0783 Nov. 1999 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
- Page 2 REMARK: Throughout this TECHNICAL DATA AND SERVICE MANUAL, a symbol(s) is(are) 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: Competitors Symbols Utilized Model Name Company Name 6830 MAKITA...
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Page 3: Table Of Contents
Notice for use Specifications and parts are subject to change for improvement. Refer to Hitachi Power Tool Technical News for further information. CONTENTS [ Business Section ] Page 1. PRODUCT NAME • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •... -
Page 4: Product Name
This machine is an impact type screwdriver designed for use with collated screws. The screw feed attachment at the head of the machine is detachable without tools. The Model WF 4V is also capable of driving ordinary bolts and wood screws that are not collated and retightening protruded screws. The new functions and higher performance of this multi-purpose screwdriver which uses Hitachi's innovative technology assure greater demand and increased sales in this category of products. -
Page 5: Selling Point Descriptions
(1) An impact mechanism that allows screw tightening with a smaller thrust, plus our unique collated screw feed attachment The WF 4V employs an impact mechanism which is capable of tightening screws with a smaller thrust than with the claw clutch system used for competitors' screwdrivers. The way it works is schematically illustrated in Fig. - Page 6 Tool-less detachment is possible for the collated screw feed attachment, making bit replacement and re- working much easier. This improved operability of the WF 4V will be a great selling point because the competitors' collated screw feed attachments must be secured by means of a hexagon socket head cap screw or the like.
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Page 7: Specifications
5. SPECIFICATIONS 5-1. Specifications Table 1 D4 x 25-41 mm (5/32" dia. x 1" -- - 1-5/8") Capacity Collated screw strips (50 screws) Type and number of screws Tightening torque Note 1) Max. 1,000 kgf cm [98 N m] (72.3 ft-lb) •... -
Page 8: Optional Accessories
5-3. Optional Accessories The optional parts listed below can be used when the collated screw feed attachment has been removed. Phillips bit Table 2 Bit No. Code No. No. 2 992671 50 mm (2") No. 3 992672 Fig. 4 Hexagon socket Stamped figures Fig. -
Page 9: Comparisons With Similar Products
6. COMPARISONS WITH SIMILAR PRODUCTS 6-1. Specification Comparisons Table 4 Hitachi Hitachi Hitachi Maker/Model WF 4V W 4YF WF 4DY Unit Item 4 (5/32") 4 (5/32") 4 (5/32") 4 (5/32") Capacity: Screw size 25 - -- 41 (1" - -- 1-5/8") 25 - -- 40 (1"... -
Page 10: Precautions In Sales Promotion
7-1. Safety Instructions In the interest of promoting the safest and most efficient use of model WF 4V by all our customers, it is very important that at the time of sales the salesperson carefully ensures that the buyer seriously recognizes the importance of the contents of the Handling Instructions, and fully understands the meaning of the precautions listed on the Caution Plate and Nameplate attached to each tool. - Page 11 (3) Setting for collated screws Screw mark Ensure that the first one of the collated screws is set to the screw mark on the slider. If the screws are set otherwise than indicated in Fig. 8, the plasterboard surface may be scratched by the bit (because of insufficient feed of the screw series) or screws may be wasted (because of excessive feed of the screw series).
- Page 12 Advise your customers that to tighten Posi-Drive Screws, they should use only the optional Posi-Drive Screw Bit specially designed for the WF 4V. As for the WF 4V, as the bit engages the screw while it's turning, the use of conventional Posi-Drive Screw Bits, which are not designed for this type of service, may result in cracked or rounded out screws as screw driving may proceed without complete engagement of the bit with the screw.
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Page 15: Precautions In Disassembly And Reassembly
9. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The [Bold] numbers in the following descriptions correspond to the item numbers in the parts list of the Model WF 4V. 9-1. Disassembly and Reassembly of the Feeder Unit and Handling Precautions 9-1-1. Disassembly (a) Loosen the four Tapping Screws (W/Flange) D4 x 20 [13] securing Slider Case (A) [12] and remove Slider Case (A) [12] from Slider Case (B) [12]. -
Page 16: Tightening Torque
9-1-3. Tightening Torque (1) Tapping Screw (W/Flange) D4 x 20 (25/32") 5 kg cm [1.96 0.49 N m] (1.44 0.36 ft-lb) • • • • • • • • (2) Tapping Screw (W/Flange) D4 x 25 (1") 5 kg cm [1.96 0.49 N m] (1.44 0.36 ft-lb) - Page 17 Fig. 14-4 Fig. 14-3 Next, slide the screwdriver into the gap and under Slowly raise the Retaining Ring using the end face one side of the Retaining Ring. of the Guide Sleeve as a fulcrum. With one side of the Retainer Ring opening raised, slowly lift the rest with a small slotted (flat-blade) screwdriver to remove the Retainer Ring and Retainer.
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Page 18: Reassembly
9-2-2. Reassembly Simply reverse the disassembly procedures while observing the following precautions. (1) Anvil section (a) Insert Anvil (M) [29] with the chamfered inner diameter section of Washer (F) [27] facing the Anvil vane. (b) Insert the Rubber Washer [26] and the Metal D20 x 16 [24] and its Oil Seal 12 x 18 x 3 [22] so that grease will not leak from inside. - Page 19 (5) Housing section (a) Lubrication Before mounting the hammer, spindle and anvil sections, apply silicone rubber (ThreeBond 1211) (Code No. 306927) to the shaded areas shown in Fig. 18 to ensure grease sealing. Application area Application area Housing (B) Housing (A) Fig.
- Page 20 (6) Wiring of switch General internal wiring can be accomplished by referring to step (7). The following are special instructions for switch connection. (a) Disconnection of reversing switch wiring As illustrated in Fig. 20, insert a small flat-blade screwdriver into the slots near the terminals and pull out the lead wires.
- Page 21 (7) Internal wire arrangement Switch Noise suppressor Blue Blue Reversing switch Cord 1 Brown Blue Cord 2 Yellow Fig. 23 Wiring diagram Brown Yellow Blue Wiring of stator viewed from A Fig. 24 (a) Connect the internal wires as illustrated in the above diagrams. Ensure that the wiring does not contact the armature.
- Page 22 (j) The Steel Balls [30] [5.55 mm dia. (7/32")] (k) Anvil (M) [29] vane *Hitachi motor grease No. 29 [Code No. 930035 (tube) or 930037 (can)] (l) Tooth surfaces of the Armature Ass'y [70] and First Gear [47] (m) The Steel Balls [28] [3.175 mm dia. (1/8")] to be fitted into Anvil (M) [29]...
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Page 23: Insulation Tests
9-2-3. Insulation Tests On completion of disassembly and repair, measure the insulation resistance and conduct insulation tests (Dielectric Strength Test). Insulation Resistance: 7 MΩ or more with DC 500 V Megohm Tester. Dielectric Strength: AC 4,000 V/1 minute, with no abnormalities 230 V - - - 240 V •... -
Page 24: Standard Repair Time (Unit) Schedules
10. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL Fixed Work Flow WF 4V Spring (D) Stopper Piece Screw Top Adjuster Stopper (A) (A).(B) Set Bit Guide Slider Ass'y Sprocket Spring (A) Spring (B) Link Piece Roller Slider Case (A).(B) Set... -
Page 25: Assembly Diagram For Wf 4V
Assembly Diagram for WF 4V --- 22 ---... - Page 26 WF 4V PARTS ITEM CODE NO. DESCRIPTION REMARKS USED 313-733 SLIDER ASS’Y INCLUD.9 312-420 TOP ADJUSTER (A).(B) SET 313-758 SPROCKET 304-035 TAPPING SCREW (W/FLANGE) D4X25 (BLACK) 312-421 SCREW STOPPER (A) 312-424 BIT GUIDE 313-880 + DRIVER BIT (A) NO.2 109L...
- Page 27 WF 4V PARTS ITEM CODE NO. DESCRIPTION REMARKS USED 314-628 SILICON TUBE 63MM 318-152 SILICON TUBE 60MM 314-627 SILICON TUBE 95MM 931-266 BRUSH CAP 999-021 CARBON BRUSH (1 PAIR) 957-571 BRUSH HOLDER 985-114 HEX. SOCKET SET SCREW M4X6 314-283 BELT GUIDE...
- Page 28 WF 4V STANDARD ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 307-343 HOOK (A) 306-854 CASE OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 996-195 DRILL CHUCK AND ADAPTER SET 992-671 + DRIVER BIT (B) NO.2 50L 992-672 + DRIVER BIT (B) NO.3 50L 996-177 NON-MAGNETIC HEX.