Hitachi DS 12DM Technical Data And Service Manual
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Hitachi DS 12DM Technical Data And Service Manual

Hitachi DS 12DM Technical Data And Service Manual

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MODEL
DS 12DM
Hitachi
Power Tools
D
TECHNICAL DATA
AND
CORDLESS DRIVER DRILL
SERVICE MANUAL
DS 12DM
LIST No. F894
Nov. 2003
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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Summary of Contents for Hitachi DS 12DM

  • Page 1 MODEL DS 12DM Hitachi Power Tools TECHNICAL DATA CORDLESS DRIVER DRILL SERVICE MANUAL DS 12DM LIST No. F894 Nov. 2003 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 6317D MAKITA BOSCH GSR12VE-2...

  • Page 3: Table Of Contents

    9-1. Feedback System ..........................12 10. REPAIR GUIDE ..........................13 10-1. Precautions in Disassembly and Reassembly ................13 10-2. Precautions in Disassembly and Reassembly of Battery Charger ..........21 11. STANDARD REPAIR TIME (UNIT) SCHEDULES................. 22 Assembly Diagram for DS 12DM...

  • Page 4: Product Name

    Hitachi 12 V Cordless Driver Drill, Model DS 12DM 2. MARKETING OBJECTIVE The new Model DS 12DM is a compact and lightweight cordless driver drill that was developed to reinforce our 12-V product range including the well-reputed Model DS 12DVB. Thanks to the high-power rare-earth magnet...

  • Page 5: Selling Point Descriptions

    4-1-2. Improved overload durability (improved cooling efficiency) The Model DS 12DM is equipped with the separate-type motor that is the same as a driver drill with a power cord. To improve the overload durability in continuous operation, the optimally designed cooling air path that is descended from the Model WH 12DM increases the cooling efficiency as well as the large radial fan increases the volume of air (see Fig.
  • Page 6 4-1-4. Manual tightening mechanism The Model DS 12DM can be used as a manual screwdriver. When a screw cannot be driven completely by the operation with the clutch dial setting, flip off the switch and turn the main body by hand to drive the screw completely (maximum manual tightening torque: 22.5 N...
  • Page 7 Case-type motor (carbon brushes are built in) [Conventional model] Separate-type motor [Model DS 12DM] 4-1-9. Flat battery The battery is flat enough to stand the Model DS 12DM upright stably. The conventional Hitachi 12-V batteries are also usable. --- 4 ---...

  • Page 8: Specifications

    5. SPECIFICATIONS Capacity Screwdriver Machine screw 6 mm (1/4") • • • • • • • • Wood screw 6.8 dia. x 50 mm (#16 x 2") • • • • • • • • • • • • Drill Metal Mild steel 13 mm (1/2") [Thickness 1.6 mm (1/16")] •...

  • Page 9: Comparisons With Similar Products

    6. COMPARISONS WITH SIMILAR PRODUCTS Maker HITACHI DS 12DVB Model name DS 12DM 13 mm (1/2") Mild steel 13 mm (1/2") 13 mm (1/2") 13 mm (1/2") Drilling 13 mm (1/2") Aluminum 13 mm (1/2") 13 mm (1/2") 13 mm (1/2") 32 mm (1-1/4")

  • Page 10: Working Performance Per Single Charge

    Remarks*1 Number of holes or fasteners per charge The above table shows an example of test data. The batteries used in this test data are as follows: Models DS 12DM and DS 12DVB: 3.0 Ah C: 2.6 Ah B: 2.4 Ah Figures in parentheses ( ) indicate the values for a 2.0 Ah battery.

  • Page 11: Precautions In Sales Promotion

    8-1. Safety Instructions In the interest of promoting the safest and most efficient use of the Model DS 12DM cordless driver 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 12 Ensure that all customers understand that Type EB 1220BL or EB 1230HL 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 13: Inherent Drawbacks Of Cordless Driver Drills Requiring Particular Attention During Sales Promotion

    (5) Variation in amount of work possible per charge Although the nominal chargeable capacity of the storage batteries used with the Model DS 12DM is 2.0 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 14 Please instruct the customers to avoid continuous use of the Model DS 12DM and take a pause about 15 minutes after a single charge operation as a guide.

  • Page 15: Reference Materials

    80% of the full speed, the maximum torque is about 95% of that at a full speed (curve "A"). Even when the Model DS 12DM is operated at a speed about 30% of the full speed, the maximum torque does not decrease under about 65% of that at a full speed (curve "B") to ensure a sufficiently...

  • Page 16: Repair Guide

    10. REPAIR GUIDE Be sure to remove the storage batteries from the main body before servicing. Inadvertent triggering of the switch with the storage battery connected will result in danger of accidental turning of the motor. 10-1. Precautions in Disassembly and Reassembly The [Bold] numbers in the descriptions below correspond to the item numbers in the Parts List and exploded assembly diagram for the Model DS 12DVB.
  • Page 17 (6) Disassembly of the drive unit (a) Remove the Clutch Dial [4] and the Click Spring [9] from the Front Case [8]. (Note) Do not remove the Nut [5] from the Front Case [8] in this step. (b) Remove the Shift Arm [20] from the Gear Box Ass'y [3] and remove the Shift Knob [39] from the Shift Arm [20].
  • Page 18 10-1-2. Reassembly Reassembly can generally be carried out as the reverse of the disassembly procedure, with some items to be noted as follows. (1) Reassembly of the power supply unit Perform wiring according to the wiring diagram (Fig. 2). Pay attention to the connecting direction of the internal wires and the terminals.
  • Page 19 Fig. 5 (4) Reassembly of the deceleration mechanism (a) Apply grease (Hitachi Motor grease No. 29) to the engaging portions of each gear, needle roller unit, and contacting surfaces of the steel balls of the ring gear properly. (b) Mount the parts from the Roller [10] to Plate (A) [27] to the part assembled in the above (3) in order (see Fig.
  • Page 20 (6 pcs.) (6 pcs.) (3 pcs.) (4 pcs.) [10] [11] [13] [18] [15] [19] [16] [17] (4 pcs.) (4 pcs.) [21] [23] [24] [22] [25] [26] [27] Groove portion Fig. 6 Fit the protrusion of Plate (A) [27] in the concave portion of the Rear Case [18] and turn it clockwise viewing from the armature until it contacts the Rear Case [18] (see Fig.
  • Page 21 (c) Mounting the Dust Guard [31] Mount the Dust Guard [31] to the Magnet [30] so that the protrusion of the Dust Guard [31] aligns with the notch of the Magnet [30]. Hold each part securely as the Dust Guard [31] may be attracted to the Magnet [30] by the strong magnetic force (see Fig.
  • Page 22 Mount the Clutch Dial [4]. The Nut [4] has three protrusions. One of these protrusions is wider than the others. The Clutch Dial [4] has three concave portions. One of these concave portions is wider than the others. Mount the Nut [5] to the Clutch Dial [4] aligning the wider protrusion of the Nut [5] with the wider concave portion of the Clutch Dial [4] (the wider concave portion of the Clutch Dial [4] is at the position where indicated with "1"...
  • Page 23 Mount the Dust Guard [31] to the Brush Block [32] aligning the protrusion of the Dust Guard [31] with the concave portion of the Brush Block [32] (Fig. 14). At this time, do not mount the DC-Speed Control Switch [41]. [32] [31] Protrusion...

  • Page 24: Precautions In Disassembly And Reassembly Of Battery Charger

    (10) Reassembly of the Hook Ass'y [43] Check that the V-Lock Nut M5 [44] is mounted to the Hook Ass'y [43]. Mount the Hook Spring [47] and secure it with the Special Screw M5 [48]. Make sure to mount the Hook Spring [47] with its larger diameter side pointing inward the housing.

  • Page 25: Standard Repair Time (Unit) Schedules

    11. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL Fixed Work Flow DS 12DM Housing (A).(B) Set General Assembly Armature Magnet Brush Block DC-Speed Control Switch Shift Knob Gear Box Ass'y Clutch Dial Drill Chuck Spring Front Case Hook Ass'y Click Spring...
  • Page 26 Hitachi Power Tools LIST NO. F894 ELECTRIC TOOL PARTS LIST CORDLESS DRIVER DRILL 2003 • • Model DS 12DM (E1)
  • Page 27 PARTS DS 12DM ITEM CODE NO. DESCRIPTION REMARKS USED 311-959 SPECIAL SCREW (LEFT HAND) M6X23 320-684 DRILL CHUCK 13VLRG-N (W/O CHUCK WRENCH) 322-460 GEAR BOX ASS’Y 1 INCLUD. 4-8, 10-28 322-461 CLUTCH DIAL 320-758 320-757 SPRING 320-756 THRUST PLATE 320-755...

  • Page 28: Standard Accessories

    STANDARD ACCESSORIES DS 12DM ITEM CODE NO. DESCRIPTION REMARKS USED CHARGER (MODEL UC 14YFA) 321-916 CASE 983-006 + DRIVER BIT NO.2 65L 11 -- 03 * ALTERNATIVE PARTS --- 3 -- -...
  • Page 29 DS 12DM ITEM CODE NO. DESCRIPTION REMARKS USED --- 4 --- 11 -- 03 Printed in Japan (031125N)

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