MODELS DS 18DMR DS 14DMR Hitachi Power Tools D CORDLESS DRIVER DRILL DS 18DMR DS 14DMR LIST Nos.
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 P RIDGID R84015, R83015 E MILWAIKEE 0622-24 Q DEWALT DW987, DW983 B BOSCH GSR18VE-2/33618, GSR14.
CONTENTS Page 1. PRODUCT NAME .............................................................................................................................. 1 2. MARKETING OBJECTIVE ................................................................................................................ 1 3. APPLICATIONS ................................................................................................................................. 1 4. SELLING POINTS ...............................................
1. PRODUCT NAME Hitachi 18 V Cordless Driver Drill, Model DS 18DMR Hitachi 14.4 V Cordless Driver Drill, Model DS 14DMR 2. MARKETING OBJECTIVE The Models DS 18DMR and DS 14DMR are the excellent top-end cordless driver drills developed to reinforce our 18-V and 14.4-V product lines and also to meet the market demands. The Models DS 18DMR and DS 14DMR are of an all new cyber design. While the Model DS 18DMR is compact and lightweight (entire length 237 mm, weight 2.
4. SELLING POINTS No. 1 Torque: Max. torque 62 N•m (DS 18DMR) 50 N•m (DS 14DMR) No. 1 Compact: Overall lengh 237 mm All new cyber design 22-position torque adjustable clutch Fine torque adjustment Max.
4-1. Selling Point Descriptions 4-1-1. Compact and high power: Max. torque 62 N•m (DS 18DMR) While the Model DS 18DMR is compact and lightweight (entire length 237 mm, weight 2.5 kg), it provides the class-top maximum torque 62 N•m thanks to the optimum design (see Tables 1 and 2). The Models DS 18DMR and DS 14DMR can drill large diameter holes and tighten screws effortlessly. Table 1 Model DS 18DMR DS 18DVB2 P E Q B C-1 C-2 Max.
4-1-3. 22-position torque adjustable clutch (Max. clutch torque 10 N•m) The 22-stage clutch ensures fine torque adjustment (see Table 3). The tightening torque is selectable up to 10 N•m. The wider torque selectable range extends the range of applicable works. Table 3 Clutch cap position 1 4 10 13 19 22 2.0 3.5 5.6 6.7 8.9 10.0 Tightening torque 0.5 N•m {20 5 kgf•cm} 0.6 N•m {35 6 kgf•cm} 0.7 N•m {56 7 kgf•cm} 0.8 N•m {67 8 kgf•cm} 0.9 N•m {89 9 kgf•cm} 1.
4-1-7. Externally replaceable carbon brushes and separate-type motor The carbon brushes are replaceable from the outside. In addition, the armature is singly replaceable thanks to the adoption of the separate-type motor that is the same as a driver drill with a power cord. Thus the Models DS 18DMR and DS 14DMR are easier to maintain. Carbon brush Armature Magnet Case-type motor (carbon brushes are built in) [Conventional model] Separate-type motor [Models DS 18DMR and DS 14DMR] 4-1-8.
5. SPECIFICATIONS 5-1. Model DS 18DMR Capacity Screwdriver Machine screw 6 mm (1/4") Wood screw 8 dia. x 100 mm (#20 x 4") Drill Metal Mild steel 13 mm (1/2") [Thickness 1.6 mm (1/16")] Aluminum 13 mm (1/2") [Thickness 1.6 mm (1/16")] Wood 50 mm (2") [Thickness 18 mm (11/16")] Keyless chuck Mount type Screw-on (UNF 1/2" --- 20) (13VLRK-N) Diameter 1.5 --- 13 mm (1/16" --- 1/2") Rotation speed (No-load) Low: 0 --- 400/min, High: 0 --- 1,600/min Slip torque 2 --- 10 N•m (20 --- 100 kgf•cm, 18 --- 87 in-lbs.
Charger (Model UC 24YJ) Overcharge protection system: (1) Battery voltage detection ( 2V system) for Ni-Cd battery Mi-MH battery temperature detection (dT/dt system) for Ni-MH battery (2) Battery surface temperature detection (thermostat or thermistor) (3) 120 minutes timer Power input: 200 W Charging time: 28 minutes [for type EB 1830HL battery at 20ûC (68ûF)] Operable ambient temperature range: 0 ûC --- 40ûC (32ûF --- 104ûF) The maximum allowable temperature of the type EB 1830HL battery is 50ûC (122ûF).
5-2. Model DS 14DMR Capacity Screwdriver Machine screw 6 mm (1/4") Wood screw 8 dia. x 75 mm (#20 x 3") Drill Metal Mild steel 13 mm (1/2") [Thickness 1.6 mm (1/16")] Aluminum 13 mm (1/2") [Thickness 1.6 mm (1/16")] Wood 44 mm (1-3/4") [Thickness 18 mm (11/16")] Keyless chuck Mount type Screw-on (UNF 1/2" --- 20) (13VLRK-N) Diameter 1.5 --- 13 mm (1/16" --- 1/2") Rotation speed (No-load) Low: 0 --- 400/min, High: 0 --- 1,500/min Slip torque 2 --- 10 N•m (20 --- 100 kgf•cm, 18 --- 87 in-lbs.
Weight Net Main body unit (including battery) Charger unit (UC 14YFA, including cord) DS 14DMR (2BFK)/(2HFK) DS 14DMR (3HFK) Charger (UC 14YFA) Battery (EB 14B/EB 1424/EB 1426H/EB 1430H) Phillips (plus) driver bit (No. 2) Side handle (For U. S. A. and Canada) Case (injection type) Charger (UC 14YFA) Battery (EB 1426H) Phillips (plus) driver bit (No.
6. COMPARISONS WITH SIMILAR PRODUCTS 6-1. Model DS 18DMR Maker Max. capacity Model Machine screw Screw driving Wood screw HITACHI DS 18DMR DS 18DVB2 6 mm (1/4") 6 mm (1/4") 8 mm dia. x 100 mm 8 mm dia.
Maker Q B C-1 C-2 Machine screw Not indicated Not indicated 6 mm (1/4") 13 mm (1/2") Wood screw Not indicated Mild steel 13 mm (1/2") 13 mm (1/2") 13 mm (1/2") 13 mm (1/2") Aluminum Not indicated 16 mm (5/8") Not indicated Not indicated Soft wood 50 mm (2") 50 mm (2") 38 mm (1-1/2") 38 mm (1-1/2") Low 0 --- 450/min 0 --- 400/min 0 --- 450/min 0 --- 400/min High 0 --- 1,450/min/ 0 --- 2,000/min 0 --- 1,300/min 0 --- 1,400/min 0 --- 1,300/min Slip torque Not indicated [22
6-2. Model DS 14DMR Maker Max. capacity Model Machine screw Screw driving Wood screw HITACHI DS 14DMR DS 14DVB2 6 mm (1/4") 6 mm (1/4") 8 mm dia. x 75 mm 8 mm dia.
Maker Q B C-1 C-2 Machine screw Not indicated Not indicated 6 mm (1/4") 13 mm (1/2") Wood screw Not indicated Mild steel 13 mm (1/2") 13 mm (1/2") 13 mm (1/2") 13 mm (1/2") Aluminum Not indicated Not indicated Not indicated Not indicated Soft wood 44 mm (1-3/4") 44 mm (1-3/4") 36 mm (1-27/64") 32 mm (1-1/4") Low 0 --- 450/min 0 --- 400/min 0 --- 400/min 0 --- 400/min High 0 --- 1,400/min 0 --- 1,800/min 0 --- 1,400/min 0 --- 1,300/min 0 --- 1,300/min Slip torque Not ind
7. WORKING PERFORMANCE PER SINGLE CHARGE 7-1. Model DS 18DMR Drilling and fastening performance comparison per charge Type of work Maker Model 0 HITACHI Working capacity (*1) *1200 *1500 *900 *600 200 250 100 150 *300 50 *0 DS 18DMR 210 (180) DS 18DVB2 160 E 170 Q 140 170 B < Low speed > HITACHI 150 3.2 110 (90) 10.8 DS 18DMR 13.6 70 12.6 60 100 7.7 70 10.9 B 90 12.4 C-1 90 12.5 C-2 90 12.0 DS 18DMR 6.3 70 (60) DS 18DVB2 40 7.3 P 40 6.0 E 60 5.8 Q 50 6.
7-2. Model DS 14DMR Drilling and fastening performance comparison per charge Type of work Maker Model 0 HITACHI Working capacity (*1) *1200 *1500 *900 *600 200 250 100 150 *300 50 *0 DS 14DMR 140 DS 14DVB2 95 P 90 Q 3.0 3.1 120 115 C-2 3.2 3.9 100 C-1 3.4 4.0 110 B Driling speed (sec./pc.) 3.8 < Low speed > HITACHI DS 14DMR DS 14DVB2 P Q 11.7 80 16.1 60 12.9 45 11.7 60 B 70 11.9 C-1 70 13.7 C-2 55 19.6 DS 14DMR 70 5.
8. PRECAUTIONS IN SALES PROMOTION 8-1. Safety Instructions In the interest of promoting the safest and most efficient use of the Models DS 18DMR and DS 14DMR Cordless Driver Drills 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. A.
(7) Do not attempt to disassemble the Storage Battery or the Charger. Special devices, such as a thermostat, are built into the storage battery and charger to permit rapid charging. Incorrect parts replacement and/or wiring will cause malfunctions which could result in fire or other hazards. Instruct the customer to bring these units to an authorized service center in the event repair or replacement is necessary.
(3) The following caution is listed on the Name Plate to the Model UC 24YJ Charger. For the U.S.A. and Canada CAUTION For safe operation, see Instruction Manual. Charge HITACHI rechargeable batteries types EB7, EB9, EB12, EB14, EB18 and EB24 series. Other types of batteries may burst causing personal injury and damage. Charge between 32ûF and 104ûF. Rest 15 minutes between the charging of batteries. Indoor use only. Replace defective cord immediately.
8-2. Inherent Drawbacks of Cordless Driver Drills Requiring Particular Attention During Sales Promotion The cordless driver drill offers many advantages; it can be used in places where no power source is available, the absence of a cord allows easy use, etc. However, any cordless tool has certain inherent drawbacks. Salespersons must be thoroughly familiar with these drawbacks in order to properly advise the customer in the most efficient use of the tool. A.
(6) Precautions in the use of HSS Drill Bits For example, although the Model DS 18DMR is designed for drilling capacities of 50 mm (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 drill bit penetrates through the material.
B. Suggestions and precautions for the efficient use of the charger and storage batteries If any of the storage batteries is exposed to direct sunlight for an extended period or if the temperature of the battery is high immediately after it has been used in the tool, the pilot lamp (red) or the charge time lamp may not be turned on when the battery is connected to the charger. Chargeable temperature ranges of each type of battery are specified as follows.
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 diagrams for the Models DS 18DMR and DS 14DMR. 10-1-1.
(4) Adjust the frong Cap [4] to " ". (5) Disassembly of the main unit Remove the ten Tapping Screws (W/Flange) D3 x 16 (Black) [34] from the main unit. Holding the battery chamber of Housing (B) [36], gently remove Housing (B) [36]. Then the inside parts can be removed in an assembled or single state. All the parts can be easily removed by raising the Front Cap [4].
(9) Disassembly of the power supply unit Disconnect each internal wire of Brush Block [31] and Terminals [45] [47] with a solder iron. (Note) Do not remove the fin secured to the DC-speed control switch with a screw. 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).
(b) Screw the Nut [5] in the Front Case [10] (see Fig. 4). Align the mark (i) on the Nut [5] with the mark on the Front Case [10] then screw it in. Rotate the Nut [5] about a turn clockwise to align the mark (i) on the Nut [5] with the mark on the Front Case [10]. At this time, check that the "Y" surface of the Nut [5] is almost flush with the "Z" surface of the Front Case [10]. After above step, tighten the Nut [5] so that the Nut [5] pushes the Stopper [8] into the Front Case [10]. Fig.
1 Apply grease approx. 1.2 g (Hitachi Motor Grease No. 29) to the shaded portion in the Front Case [10] (See Fig. 6). (Note) Be sure to apply grease to the shaded portion in the Front Case [10]. Otherwise, the spindle lock may not work properly. 2 When installing the Lock Ring [13] into the Front Case [10], assemble so that the projections on the Lock Ring [13] engage with the recesses in the Front Case [10]. Make sure that the flat plane of Lock Ring [13] faces the Front Case [10] (see Fig. 6).
4 Pay attention to the mounting direction of the Ring Gear [14], Slide Ring Gear [21], Pinion (C) [22] and Pinion (B) [24] (see Fig. 5). Mount the Front Case [10] to the Rear Case [18] so that the concave portion of the Front Case [10] aligns with the protrusion of the Rear Case [18] (see Fig. 12). 6 Fit the protrusion of Washer (B) [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. 9).
(5) Reassembly of the drive unit (a) Fit the protrusion of the Motor Spacer [28] in the concave portion of the Rear Case [18] engaging the pinion of the Armature and Pinion Set [29] with Planet Gear (A) Set (4 pcs.) [25]. Turn it fully clockwise viewing from the rear of the Armature and Pinion Set [29] (see Fig. 11). [28] [18] Concave portion Protrusion Protrusion Concave portion [27] Fig. 11 (b) Mounting the Shift Arm [19] and the Shift Knob [39] (see Fig. 12).
(c) Mounting the Click Spring [11] and the Front Cap [4]. 1 Mount the Click Spring [11] to the Front Case [10]. 2 Mount the Front Cap [4]. Check that the protrusion of the Click Spring [11] is inserted into the groove inside the Front Cap [4]. (6) Reassembly of the main unit (a) Mount the power supply unit and the drive unit that were reassembled in the above procedure to Housing (A) [36].
(b) Mount the DC-Speed Control Switch [42] that was not mounted in the above step (a) to Housing (A) [36]. Mount the Pushing Button [41] to Housing (A) [36]. Check that the protrusion of the forward/reverse changeover lever of the DC-Speed Control Switch [42] is inserted into the groove of the Pushing Button [41]. (c) Mount the Strap [52] to Housing (A) [36]. (d) Align Housing (A) [36] with Housing (B) [36] and secure with ten Tapping Screws (W/Flange) D3 x 16 (Black) [34].
(11) Screw tightening torque Special Screw (Left Hand) M6 x 23 [1]..................................................... 3.92 --- 4.9 N•m (40 --- 50 kgf•cm) Drill Chuck 13VLRK-N (W/O Chuck Wrench) [2] ..................................... 17.6 --- 21.6 N•m (180 --- 220 kgf•cm) Screw Set D3 x 12 [20] ............................................................................ 0.62 --- 0.94 N•m (6 --- 10 kgf•cm) Brush Cap [33] ....................................................................................
11. STANDARD REPAIR TIME (UNIT) SCHEDULES MODEL Variable Fixed 10 20 30 Work Flow DS 18DMR DS 14DMR Housing (A).
Hitachi Power Tools LIST NO.
PARTS ITEM NO. 1 CODE NO. 311-959 DESCRIPTION SPECIAL SCREW (LEFT HAND) M6X23 REMARKS 1 2 323-000 DRILL CHUCK 13VLRK-N (W/O CHUCK WRENCH) 1 3 322-969 GEAR BOX ASS’Y 1 INCLUD. 4-10, 12-28 4 322-991 FRONT CAP 1 5 322-974 NUT 1 6 323-228 SPRING 1 7 322-973 THRUST WASHER 1 8 322-972 STOPPER 2 9 322-971 STOPPER SPRING 2 10 322-970 FRONT CASE 1 11 323-231 CLICK SPRING 1 12 322-975 PIN SET (6 PCS.
PARTS ITEM NO. 52 CODE NO. 306-952 DS 18DMR NO. USED DESCRIPTION STRAP (BLACK) REMARKS 1 53 319-926 HOOK SPRING 1 54 320-881 SPECIAL SCREW (A) M5 1 * 55 322-878 BATTERY EB 1826HL (W/ENGLISH N.P.) 2 * 55 322-876 BATTERY EB 1830HL (W/ENGLISH N.P.) 2 * 55 322-877 BATTERY EB 1830HL (W/ENGLISH N.P.) 2 FOR USA, CAN * 55 322-879 BATTERY EB 1824L (W/ENGLISH N.P.) 2 * 55 322-880 BATTERY EB 1820L (W/ENGLISH N.P.
DS 18DMR STANDARD ACCESSORIES ITEM NO. * 501 * CODE NO. 501 NO. USED DESCRIPTION CHARGER (MODEL UC 24YFA) 1 CHARGER (MODEL UC 24YJ) 1 502 983-006 + DRIVER BIT NO.
Hitachi Power Tools LIST NO.
PARTS ITEM NO. 1 CODE NO. 311-959 DESCRIPTION SPECIAL SCREW (LEFT HAND) M6X23 REMARKS 1 2 323-000 DRILL CHUCK 13VLRK-N (W/O CHUCK WRENCH) 1 3 322-969 GEAR BOX ASS’Y 1 INCLUD. 4-10, 12-28 4 322-991 FRONT CAP 1 5 322-974 NUT 1 6 323-228 SPRING 1 7 322-973 THRUST WASHER 1 8 322-972 STOPPER 2 9 322-971 STOPPER SPRING 2 10 322-970 FRONT CASE 1 11 323-231 CLICK SPRING 1 12 322-975 PIN SET (6 PCS.
PARTS ITEM NO. 52 CODE NO. 306-952 DS 14DMR NO. USED DESCRIPTION STRAP (BLACK) REMARKS 1 53 319-926 HOOK SPRING 1 54 320-881 SPECIAL SCREW (A) M5 1 * 55 315-130 BATTERY EB 14B (W/ENGLISH N.P.) 2 * 55 315-129 BATTERY EB 14B (W/ENGLISH N.P.) 2 FOR USA, CAN * 55 322-883 BATTERY EB 1426H (W/ENGLISH N.P.) 2 * 55 318-372 BATTERY EB 1430H (W/ENGLISH N.P.) 2 * 55 319-104 BATTERY EB 1424 (W/ENGLISH N.P.
DS 14DMR STANDARD ACCESSORIES ITEM NO. 501 502 * CODE NO. 983-006 NO. USED DESCRIPTION CHARGER (MODEL UC 14YFA) 1 + DRIVER BIT NO.2 65L 1 REMARKS 503 323-001 SIDE HANDLE 1 FOR USA, CAN 504 323-230 CASE 1 OPTIONAL ACCESSORIES ITEM NO. * 601 --- 4 --- CODE NO. 323-001 DESCRIPTION SIDE HANDLE NO.
