Hitachi CR 24DV Technical And Service Manual
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Hitachi CR 24DV Technical And Service Manual

Hitachi CR 24DV Technical And Service Manual

Cordless saber saw
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MODEL
CR 24DV
POWER TOOLS
C
TECHNICAL DATA
CORDLESS SABER SAW
AND
CR 24DV
SERVICE MANUAL
LIST No. F850
May 2001
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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Summary of Contents for Hitachi CR 24DV

  • Page 1 MODEL CR 24DV POWER TOOLS TECHNICAL DATA CORDLESS SABER SAW CR 24DV SERVICE MANUAL LIST No. F850 May 2001 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 Company Name Model Name DW008 DEWALT 1645 (USA) BOSCH GSA24VE(EUROPE)

  • Page 3: Table Of Contents

    7-2. Inherent Drawbacks of Cordless Saber Saw Requiring Particular Attention during Sales Promotion ........................11 7-3. Front Cover ........................... 12 8. REPAIRE GUIDE .......................... 12 8-1. Precautions in Disassembly and Reassembly ................12 9. STANDARD REPAIR TIME (UNIT) SCHEDULES ............... 19 Assembly Diagram for CR 24DV...

  • Page 4: Product Name

    2. MARKETING OBJECTIVE The Model CR 24DV is the Hitachi's first cordless saber saw developed as one of our 24 V product lineup. The Model CR 24DV realizes the class-top cutting performance thanks to the technical innovations such as the DC motor whose carbon brush is replaceable from the outside and the slide-type battery.

  • Page 5: Selling Point Descriptions

    (2) Saw blade can be mounted in either direction, upward or downward The Model CR 24DV is convenient for cutting materials on the floor or near window frames, and also for plunge cutting on plywood panels because the saw blade can be installed upside down.
  • Page 6 (3) Replaceable carbon brush to elongate motor life The carbon brush can be replaced from the outside of the motor to elongate the motor life and to enhance the maintainability. The carbon brush can be easily removed from the motor with a flat-blade screwdriver as shown in Fig.

  • Page 7: Specifications

    5. SPECIFICATIONS 5-1. Specifications Capacity Max. cutting size Steel pipe outer diameter 100 mm (4") Wood thickness 100 mm (4") Mild steel plate (thickness) 10 mm (3/8") Number of stroke 0 --- 2,500/min. Stroke 28 mm (1-1/8") Type of motor DC magnet motor Max.

  • Page 8: Optional Accessories

    Pilot lamp indications (UC 24YFB) 0.5 sec ON, 0.5 sec OFF Prior to charging Blinks Stays ON constantly During charging Red pilot lamp remains lit or flashes 0.5 sec ON, 0.5 sec OFF Charging completed Blinks Storage battery or 0.1 sec ON, 0.1 sec OFF Flickers Charging not possible charger is faulty.
  • Page 9 (2) BI-METAL blades The blade numbers of BI-METAL blades in Table 2 are engraved in the vicinity of the mounting position of each blade. Select appropriate blades by referring to Table 2 and 3 below. Table 2: BI-METAL blades Blade No. Uses Thickness (mm) For cutting steel and stainless pipes less than 60 mm (2-3/8") in outer diameter...

  • Page 10: Comparisons With Similar Products

    6. COMPARISONS WITH SIMILAR PRODUCTS 6-1. Specification Comparisons 6-2. Working Performance per Single Charge (reference only) Fig. 4 --- 7 ---...
  • Page 11 Fig. 5 The following test data should be used for reference purposes only since the cutting speed and the working capacity may vary depending on the operating conditions such as the pressing force, type of blades, materials, etc. --- 8 ---...

  • Page 12: Precautions In Sales Promotion

    7-1. Safety Instructions In the interest of promoting the safest and most efficient use of the Model CR 24DV by all 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 13 Ensure that all customers understand that Model EB 2420 or EB 2430HA Storage Batteries should be returned to the Hitachi power tool sales outlet or authorized service center when they are no longer capable of being recharged or repaired. If thrown into a fire, the batteries may explode, or if discarded indiscriminately, leakage of the cadmium compound contained in the battery may cause environmental pollution.

  • Page 14: Inherent Drawbacks Of Cordless Saber Saw Requiring Particular Attention During Sales Promotion

    (3) Variation in amount of work possible per charge Although the nominal chargeable capacity of the storage batteries used with the Model CR 24DV is 2.0 Ah and 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 15: Front Cover

    7-3. Front Cover [WARNING] The Model CR 24DV is equipped with the front cover to protect the operator against possible electric shock, and it is not intended for cutting live lines. The front cover covers both the gear cover and the upper cover to protect the operator against electric shock in the event that a live line is accidentally cut and electricity flows from the blade to the metallic enclosure.
  • Page 16 (6) Removal of the Gear [42] from the Gear Cover Ass'y [32] Remove the three Seal Lock Flat Hd. Screws M4 x 12 [25] through the hole of the Balance Weight [41]. Then the Gear [42] (together with the Balance Weight [41], Spindle [28] and others) can be removed from the Gear Cover Ass'y [32].
  • Page 17 (9) Disassembly of the handle section Remove the two Tapping Screws (F/Flange) D4 x 25 (Black) [61] and pull out the Grip Cover [60] backward. Remove the four Tapping Screws (W/Flange) D4 x 30 (Black) [59] and Handle (A).(B) Set [57]. Then the Pushing Button [66] and the power supply ass'y (DC-speed Control Switch [56], Brush Holder (B) [54], Brush Holder (A) [65] and Terminal Support [69] are mounted) can be removed.
  • Page 18 8-1-2. Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse. However, special attention should be given to the following items. (1) Reassembly of the blade mounting section (Figs. 8, 9 and 10) Apply Doubrex 251 grease (Code No. 971042) to the inner circumference of Holder Sleeve (B) [4] and the cam groove of the Plunger [14].
  • Page 19 (2) Reinstallation of the spindle and gear section to the Gear Cover Ass'y [32] Insert the Spindle [28] into the Ball Bearing 6901ZZCMPS2L [27], Bearing Cover (B) [26], Gear [42] and Balance Weight [41] in order. Secure the spindle and gear section secured with the Nylock Hex. Socket Flat Hd.
  • Page 20 (9) Tightening Torques Tapping Screw (W/Flange) D4 x 30 (Black) [59] ......2.0 0.5 N•m (20 5 kgf•cm) Tapping Screw (W/Flange) D4 x 25 (Black) [61] ......2.0 0.5 N•m (20 5 kgf•cm) Hex. Hd. Tapping Screw D4 x 60 [50] ..........2.9 0.5 N•m (30 5 kgf•cm) Tapping Screw (W/SP.
  • Page 21 8-1-3. Wiring diagram Be sure to perform wiring connections as indicated in Figs. 11, 12, 13 and 14. Fig. 11 Fig. 12 Fig. 13 Fig. 14 --- 18 ---...

  • Page 22: Standard Repair Time (Unit) Schedules

    9. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL Fixed Work Flow CR 24DV Handle (A).(B) Housing Magnet DC-speed Control Switch Armature Ass'y Terminal Ball Bearing Support (608VV) Ball Bearing (6001VV) General Assembly Front Cover Gear Cover Ass'y Spindle Ball Bearing...
  • Page 23 LIST NO. F850 ELECTRIC TOOL PARTS LIST CORDLESS SABER SAW 2001 • • Model CR 24DV (E1)
  • Page 24 PARTS CR 24DV ITEM CODE NO. DESCRIPTION REMARKS USED 318-481 HOLDER PIN 318-483 SPRING (B) 318-478 HOLDER SLEEVE (A) 318-479 HOLDER SLEEVE (B) 959-149 STEEL BALL D4.76 (10 PCS.) 318-480 HOLDER SLEEVE (C) 318-477 GUIDE WASHER 318-487 DUST WASHER 318-482...
  • Page 25 PARTS CR 24DV ITEM CODE NO. DESCRIPTION REMARKS USED 319-808 HOUSING NAME PLATE 319-814 BRUSH HOLDER (B) 318-247 FERRITE CORE EXCEPT FOR NZL,AUS,USA,CAN 319-861 DC-SPEED CONTROL SWITCH 319-855 HANDLE (A).(B) SET CAUTION LABEL 305-490 TAPPING SCREW (W/FLANGE) D4X30 (BLACK) 319-790...
  • Page 26 STANDARD ACCESSORIES CR 24DV ITEM CODE NO. DESCRIPTION REMARKS USED 318-613 SABER SAW BLADES NO.103 150L P.14 (5 PCS.) 318-621 SABER SAW BLADES NO.132 203L (5 PCS.) FOR USA,CAN 944-458 HEX. BAR WRENCH 4MM 319-815 CASE (PLASTIC) CHARGER (MODEL UC 24YFB)

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