Hitachi DH 45MR manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Hitachi DH 45MR, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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First and foremost, an user manual of Hitachi DH 45MR should contain:
- informations concerning technical data of Hitachi DH 45MR
- name of the manufacturer and a year of construction of the Hitachi DH 45MR item
- rules of operation, control and maintenance of the Hitachi DH 45MR item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Hitachi DH 45MR alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Hitachi DH 45MR, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Hitachi service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Hitachi DH 45MR.

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It is mostly in the manuals where we will find the details concerning construction and possibility of the Hitachi DH 45MR item, and its use of respective accessory, as well as information concerning all the functions and facilities.

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Table of contents for the manual

  • Page 1

    Rotary Hammer MODEL DH 45MR HANDLING INS TRUCTIONS Note: Before using this Power Tool, carefully read through these HANDLING INSTRUCTIONS to ensure efficient, safe operation. It is recommended that these INSTRUCTIONS be kept readily available as an important reference when using this power tool. 001CoverF_DH45MR_Eng 1/7/11, 4:50 PM 1[...]

  • Page 2

    1 GENERAL POWER TOOL SAFETY WARNINGS WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference. The term “power tool” in the warnings refers to your mains- operated (corded) power tool or[...]

  • Page 3

    2 2. Anchor hole drilling (Rotation + Hammering) Drill bit (Taper shank) Adapter for SDS-plus shank bit 3. Large dia. hole boring (Rotation + Hammering) (1) Center pin 䢇 Applied to core bits from 38 mm to 125 mm 䢇 Applied to core bits 32 mm and 35 mm STANDARD ACCESSORIES (1) Case .................................................................[...]

  • Page 4

    3 NOTE: Do not use core bits 25 mm or 29 mm. (2) Core bit 䢇 External dia. 25, 29, 32, 35, 38, 45, 54, 64, 79, 94, 105, 120, 125 mm (with guide plate, not applicable to cores 25 mm or 29 mm) (3) Core bit shank 䢇 Applied to core bits above 38 mm 䢇 Applied to core bits below 35 mm 4. Drilling holes .... For drilling metal and wooden materials 5.[...]

  • Page 5

    4 HOW TO USE THE ROTARY HAMMER 1. How to drill holes (Fig. 4) (1) Pull the switch trigger after applying the drill bit tip to the drilling position. (2) It is unnecessary to forcibly press the rotary hammer main body. It is sufficient to slightly press the rotary hammer to an extent that shavings are freely discharged. CAUTION: Although this machin[...]

  • Page 6

    5 (c) Release the button to lock the selector lever. NOTE: Turn the selector lever (do not push the button) to check if it is completely locked and make sure that it does not turn. 4. When chipping and chiseling at “hammering”: CAUTION: 䡬 If the selector lever is switched during motor rotation, the tool can start to rotate abruptly, resulting[...]

  • Page 7

    English 6 CAUTION: When the warming up operation is performed, hold the side handle and the main body securely with both hands to maintain a secure grip and be careful not to twist your body by the jammed drill bit. DRILLING AND DRIVING-IN OPERATIONS FOR ANCHORS 1. When a taper shank adapter is used. (Fig. 12) (1) Install drill bit with taper shank[...]

  • Page 8

    7 (3) Insert the center pin into the guide plate until it reaches the extremity. (4) Fit in the guide plate by aligning its concaved portion with the core bit tip. When the position of the concave is shifted by turning the guide plate right or left, the guide plate never slips off even when the drill is used in a downward direction. ( Fig. 17 ) 2. [...]

  • Page 9

    8 (2) Supply 30 g of Hitachi Electric Hammer Grease A (Standard accessory, contained in tube) to the crank case. (3) After replenishing the grease, install the crank cover securely. NOTE: The Hitachi Electric Hammer Grease A is of the low viscosity type. If necessary purchase from an Hitachi Authorized Service Center. MAINTENANCE AND INSPECTION 1. [...]

  • Page 10

    9 02Back_DH45MR_Eng 1/7/11, 4:51 PM 9[...]

  • Page 11

    10 AB C D 1 321-306 1 2 321-305 1 3 318-590 1 4 321-304 1 5 321-303 1 6 321-302 1 7 981-942 4 M6 × 25 8 321-300 1 9 956-996 3 1AS-60 10 321-301 1 11 325-229 1 12 315-868 1 13 948-131 1 14 600-7DD 1 6007DDUAV2S 15 321-297 1 16 313-421 2 D8 × 20 17 324-919 1 18 324-921 1 19 324-920 1 20 324-922 1 21 324-923 1 22 324-924 1 23 313-057 4 D6 × 6 24 32[...]

  • Page 12

    101 Code No. C99144811 N Printed in Japan Hitachi Koki Co., Ltd. Shinagawa Intercity Tower A, 15-1, Konan 2-chome, Minato-ku, Tokyo, Japan 02Back_DH45MR_Eng 1/7/11, 4:51 PM 11[...]