Hitachi DV 18DV Technical And Service Manual
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Hitachi DV 18DV Technical And Service Manual

Cordless impact drill
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MODEL
DV 18DV
POWER TOOLS
D
TECHNICAL DATA
AND
CORDLESS IMPACT DRILL
SERVICE MANUAL
DV 18DV
LIST No. F854
Jul. 2001
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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Summary of Contents for Hitachi DV 18DV

  • Page 1 MODEL DV 18DV POWER TOOLS TECHNICAL DATA CORDLESS IMPACT DRILL SERVICE MANUAL DV 18DV LIST No. F854 Jul. 2001 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2 Notice for use Specifications and parts are subject to change for improvement. Refer to Hitachi Power Tool Technical News for further information.
  • Page 3 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 Company Name Model Name DW997 DEWALT MAKITA 8443D...

  • Page 4: Table Of Contents

    9-1. Speed Control Mechanism ......................9 10. REPAIR GUIDE .......................... 10 10-1. Precautions in Disassembly and Reassembly ................10 10-2. Precautions in Disassembly and Reassembly of Battery Charger ..........17 11. STANDARD REPAIR TIME (UNIT) SCHEDULES..............18 Assembly Diagram for DV 18DV...

  • Page 5: Product Name

    The Model DV 18DV cordless impact drill has been newly developed as a higher level version of the Model DV 14DV (14.4 V product) that is brought out together with the Model DV 18DV. The Model DV 18DV is equipped with the T-type handle and the 22-step clutch for easier operation as a driver drill.

  • Page 6: Selling Point Descriptions

    4-1. Selling Point Descriptions 4-1-1. 3-mode selection This model can be easily switched between three modes, screwdriving, drilling and impact drilling, by simply turning the cap dial. To use it as a screwdriver, set the cap to any position between 1 and 22, depending on the types of screws and the material to be fastened.

  • Page 7: Specifications

    5. SPECIFICATIONS Capacity Screwdriver Machine screw 6 mm (1/4") • • • • • • • • Wood screw 8 mm dia. x 75 mm (#20 x 3") • • • • • • • • • • • • Brick ......

  • Page 8: Comparisons With Similar Products

    6. COMPARISONS WITH SIMILAR PRODUCTS Maker HITACHI Model DV 18DV Brick 16 mm (5/8") 16 mm (5/8") 16 mm (5/8") Mild steel 13 mm (1/2") 13 mm (1/2") 13 mm (1/2") Drilling Not indicated Aluminum 13 mm (1/2") Not indicated Soft wood 38 mm (1-1/2")

  • Page 9: Working Performance Per Single Charge

    Drilling Type of work Maker Model *200 *400 *800 *1000 speed *600 (sec./pc.) D30 mm (1-1/4") DV 18DV Brick HITACHI Drill bit for concrete <High speed> T1.6 (1/16") Mild steel DV 18DV HITACHI drill bit <High speed> American T18 (11/16")

  • Page 10: Precautions In Sales Promotion

    8-1. Safety Instructions In the interest of promoting the safest and most efficient use of the Model DV 18DV Cordless Impact Drill by all of our customers, it is very important that at the time of sale, 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 Name Plate attached to each tool.
  • Page 11 Ensure that all customers understand that Type EB 1814, EB 1820, EB 18H or EB 1830H storage battery should be returned to the Hitachi power tool sales outlet or the authorized service center when it is no longer capable of being recharged or repaired. If thrown into a fire, the battery may explode, or, if discarded indiscriminately, leakage of the cadmium compound contained in the battery may cause environmental pollution.

  • Page 12: Inherent Drawbacks Of Cordless Impact Drills Requiring Particular Attention During Sales Promotion

    (6) Variation in amount of work possible per charge Although the nominal chargeable capacity of the storage batteries used with the Model DV 18DV is 1.4 Ah, 2.0 Ah, 2.2 Ah or 3.0 Ah, the actual capacity may vary within 10% of that value depending on the ambient temperature during use and charging, and the number of times the batteries have been recharged.

  • Page 13: Reference Materials

    (7) Precautions in the use of HSS Drill Bits Although the Model DV 18DV is designed for drilling capacities of 38 mm (1-1/2") in wood, and 13 mm (1/2") in aluminum and mild steel, this capability is not as efficient as conventional electric power tools. In particular, when drilling through aluminum material with a 13 mm (1/2") drill bit, the drill tends to become locked when the...

  • Page 14: Repair Guide

    10-1. Precautions in Disassembly and Reassembly The [Bold] numbers in the description below correspond to the item numbers in the Parts List and exploded assembly diagram for the Model DV 18DV. 10-1-1. Disassembly (1) Removal of the Drill Chuck 13VLRF-N (W/O Chuck Wrench) [2] (See Fig. 4.) Remove the Drill Chuck 13VLRF-N (W/O Chuck Wrench) [2] of the fully assembled main body in accordance with the following procedures.
  • Page 15 (4) Disassembly of the gear unit (a) Remove the Cap [4] from the Front Case [12]. Take care not to remove the Switch Plate [8] and the Nut [9] from the Front Case [12] in this operation. (b) Turn the Motor [31] counterclockwise when viewed from the rear and remove it from the Rear Case [20]. (c) Remove the Shift Arm [22] from the Rear Case [20], and remove the Shift Knob [41] from the Shift Arm [22].
  • Page 16 (b) Pay attention to the polarity of the Motor [31] when soldering Internal Wires (Black) [36] and (Red) [37] to the Motor [31]. The red-marked side of the Motor [31] is positive. (See Fig. 8.) (c) Apply grease (Hitachi Motor Grease No. 29, Code No. 930035 is recommended) to the pinion press-fitted on the Motor [31] shaft.
  • Page 17 (3) Reassembly of the gear unit (a) Apply grease (Hitachi Motor Grease No. 29, Code No. 930035) to the meshing parts of the gear. (b) Install the parts series from the six Rollers [13] to Washer (B) [29] into the assembly reassembled in step (2).
  • Page 18 (c) Install the Click Spring [5] and the Cap [4] to the assembly reassembled in step (b). (See Fig. 11.) (i) Insert the ridge and the projections of the Click Spring [5] into the holes of the Cap [4]. (ii) When the Nut [9] is screwed in the Front Case [12] about 1-3/8 turns (495˚), the three projections of the Nut [9] and the marking of the Rear Case [20] are positioned as shown in Fig.
  • Page 19 (d) Install the Shift Arm [22] into the assembly reassembled in step (c). With the ridge at the Shift Arm [22] facing the Motor [31] side, first install them on the unmarked side of the assembly reassembled in step (c). Then insert the projections on the Shift Arm [22] into the holes in the Rear Case [20] and make sure that the projections are fitted into the grooves in the Slide Ring Gear [23] mounted within the Rear Case [20].
  • Page 20 (4) Installation of the assembly reassembled in step (3) into Housing (A). (B) Set [35] (a) Install the Pushing Button [39] into Housing (B) [35]. (See Fig. 14.) (b) Install the assembly reassembled in step (3) into Housing (A) [35]. Note that the projections on the Front Case [12] and the Motor Spacer [30] are engaged in the recesses in Housing (A) [35], and the projection on Housing (A) [35] is engaged in the groove of the Cap [4].

  • Page 21: Precautions In Disassembly And Reassembly Of Battery Charger

    (b) The tightening torque of each screw is given below. Special Screw (Left Hand) M6 x 23 [1] : 2.9 --- 3.9 N m ( 30 --- 40 kgf cm, 26.1 --- 34.8 in-lbs.) • • Drill Chuck 13VLRF-N (W/O Chuck Wrench) [2] : 12.7 --- 16.7 N m (130 --- 170 kgf cm, 113 --- 148 in-lbs.) •...

  • Page 22: Standard Repair Time (Unit) Schedules

    11. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL Fixed Work Flow DV 18DV General Assembly Housing Spring (A).(B) Set Drill Chuck Motor DC-speed Control Switch O-ring Shift Arm (Gear Box Ass'y) Front Case Ring Gear Carrier First Ring Gear Planet Gear...
  • Page 23 LIST NO. F854 ELECTRIC TOOL PARTS LIST CORDLESS IMPACT DRILL 2001 • • Model DV 18DV (E1)
  • Page 24 PARTS DV 18DV ITEM CODE NO. DESCRIPTION REMARKS USED 311-959 SPECIAL SCREW (LEFT HAND) M6X23 319-766 DRILL CHUCK 13VLRF-N (W/O CHUCK WRENCH) 320-093 GEAR BOX ASS’Y INCLUD.4-30 319-963 319-754 CLICK SPRING 320-088 O-RING 320-089 LOCK WASHER 320-090 SWITCH PLATE 319-743...

  • Page 25: Standard Accessories

    STANDARD ACCESSORIES DV 18DV ITEM CODE NO. DESCRIPTION REMARKS USED CHARGER (MODEL UC 24YFA) 318-236 + DRIVER BIT NO.2 55L 319-770 CASE OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 873-929 WRENCH 14MM 5 -- 01 * ALTERNATIVE PARTS...
  • Page 26 DV 18DV ITEM CODE NO. DESCRIPTION REMARKS USED * ALTERNATIVE PARTS Printed in Japan 5 -- 01 (010510N)

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