Hitachi DH 38MS 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 38MS, 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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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Hitachi DH 38MS one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Hitachi DH 38MS. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Hitachi DH 38MS should contain:
- informations concerning technical data of Hitachi DH 38MS
- name of the manufacturer and a year of construction of the Hitachi DH 38MS item
- rules of operation, control and maintenance of the Hitachi DH 38MS item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Hitachi DH 38MS 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 38MS, 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 38MS.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Hitachi DH 38MS item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    Rotary Hammer Model DH 38MS Handling instructions Note: Before using this Electric 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. 001Cover_DH38MS_Eng 11/25/08, 18:25 1[...]

  • Page 2

    2 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

    3 2. Anchor hole drilling (Rotation + Hammering) Drill bit (Taper shank) STANDARD ACCESSORIES (1) Case ............................................................................. 1 (2) Side Handle ................................................................ 1 Standard accessories are subject to change without notice. OPTIONAL ACCESSORIES (sol[...]

  • Page 4

    4 (1) Center pin 䢇 Applied to core bits from 38 mm to 105 mm 䢇 Applied to core bits 32 mm and 35 mm 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 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 Applie[...]

  • Page 5

    5 Fig. 1 (2) To attach the tool (SDS max shank), insert it into the hole until it contacts the innermost end of the hole as illustrated in Fig. 2 . If you continue to turn the tool with slight pressure, you can feel a spot where there is a hitch. At that spot, pull the grip to the direction of an arrow mark and insert the tool all the way until it [...]

  • Page 6

    6 4. When demolishing and chiseling at “hammering”: CAUTION: 䡬 If the selector lever is switched during motor rotation, the tool can start to rotate abruptly, resulting in unexpected accidents. Make sure to switch the selector lever when the motor is at a complete stop. 䡬 If the bull point or cold chisel is used at the position of ”rotati[...]

  • Page 7

    7 Fig. 10 (2) Turn the power on and drill a base hole to the depth sounded by indicating groove on the drill bit. (3) After cleaning out dust with a syringe, attach the plug to the anchor tip and drive in the anchor with a manual hammer. (4) To remove the drill bit (taper shank), insert the cotter into the slot of the taper shank adapter and strike[...]

  • Page 8

    8 Fig. 14 (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. [...]

  • Page 9

    9 2. Grease replenishment CAUTION: Before replenishing the grease, turn the power off and pull out the power plug. (1) Remove the crank cover and wipe off the grease inside. ( Fig. 19 ) (2) Supply 60 g of Hitachi Electric Hammer Grease A (Standard accessory, contained in tube) to the crank case. (3) After replenishing the grease, install the crank [...]

  • Page 10

    10 02Back_DH38MS_Eng 11/25/08, 18:25 10[...]

  • Page 11

    11 ITEM NO. PA RT NAME Q’TY 1 FRONT CAP 1 2 GRIP 1 3 STOPPER RING 1 4 NEEDLE HOLDER 1 5 RET AINER SPRING 1 6 SPRING HOLDER (A) 1 7 CYLINDER CASE 1 8 HEX. SOCKET HD. BOL T (W/FLANGE) M6 × 25 4 9 O-RING (1AS-60) 1 10 RET AINER DAMPER 1 11 RET AINER DAMPER W ASHER 1 12 RET AINER SLEEVE 1 13 NEEDLE ROLLER D8 × 20 2 14 O-RING (C) 1 15 SECOND HAMMER [...]

  • Page 12

    101 Code No. C99177512 F Printed in China Hitachi Koki Co., Ltd. Shinagawa Intercity Tower A, 15-1, Konan 2-chome, Minato-ku, Tokyo, Japan 02Back_DH38MS_Eng 12/3/10, 2:58 PM 12[...]