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Hitachi DH 50MRY manual

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Table of contents for the manual

  • Page 1

    Rotary Hammer Model DH 50MR Y • DH 50MR 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_DH50MRY_ENG 07/8/8, 19[...]

  • Page 2

    2 GENERAL SAFETY RULES WARNING! Read all instructions Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. The term “power tool” in all of the warnings listed below refers to your mains operated (corded) power tool or battery operated (cordless) power tool. SAVE THESE INSTRUCTIONS 1) Work are[...]

  • Page 3

    3 STANDARD ACCESSORIES (1) Case ............................................................................. 1 (2) Side Handle ................................................................ 1 (3) Stopper ........................................................................ 1 (4) Hammer Grease A ................................................[...]

  • Page 4

    4 (1) Center pin 䢇 Applied to core bits from 38 mm to 150 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, 120, 150 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 [...]

  • Page 5

    5 CAUTION: Do not adjust the dial during operation. Doing so can result in injury because the Rotary Hammer must be held by only one hand, disabling the steady control of the Rotary Hammer. 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 unn[...]

  • Page 6

    6 (1) Switching to “rotation + hammering” (a) Push the button, release lock and turn the selector lever clockwise. (b) Align ▲ of the selector lever and of the lever holder as illustrated in Fig. 6 . (c) Release the button to lock the selector lever. Fig. 6 NOTE: Turn the selector lever (do not push the button) to check if it is completely lo[...]

  • Page 7

    7 Fig. 11 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

    8 Fig. 15 (2) Mount the core bit shank on the main body in the same manner as in mounting the drill bit and the bull point. ( Fig. 16 ) Fig. 16 (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 [...]

  • Page 9

    9 Fig. 20 HOW TO REPLACE GREASE This machine is of full air-tight construction to protect against dust and to prevent lubricant leakage. Therefore, the machine can be used without lubrication for long periods. Replace the grease as described below. 1. Grease replacement period After purchase, replace grease after every 6 months of usage. Ask for gr[...]

  • Page 10

    10 DH50MRY 02Back_DH50MRY_ENG 07/8/8, 19:06 10[...]

  • Page 11

    11 DH50MRY 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 1 7 SEAL LOCK HEX SOCKET HD. BOL T M8 × 25 4 8 FRONT COVER 1 9 O-RING (S-70) 1 10 OIL SEAL (NBR710) 1 11 URETHANE RING 1 12 URETHANE RING HOLDER 1 13 RET AINING RING D40 1 14 BALL BEARING 6008CM 1 15 SLEEVE 1 16 THRU[...]

  • Page 12

    12 DH50MR 02Back_DH50MRY_ENG 07/8/8, 19:06 12[...]

  • Page 13

    13 DH50MR 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 1 7 SEAL LOCK HEX SOCKET HD. BOL T M8 × 25 4 8 FRONT COVER 1 9 O-RING (S-70) 1 10 OIL SEAL (NBR710) 1 11 URETHANE RING 1 12 URETHANE RING HOLDER 1 13 RET AINING RING D40 1 14 BALL BEARING 6008CM 1 15 SLEEVE 1 16 THRUS[...]

  • Page 14

    14 02Back_DH50MRY_ENG 07/8/8, 19:06 14[...]

  • Page 15

    15 02Back_DH50MRY_ENG 07/8/8, 19:06 15[...]

  • Page 16

    708 Code No. C99166611 N Printed in Japan Hitachi Koki Co., Ltd. 02Back_DH50MRY_ENG 07/8/8, 19:06 16[...]