MARUZEN KOGYO BH221 Operating Manual

Hydraulic handheld breaker

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HYDRAULIC HANDHELD BREAKER

MODEL BH221（230）

OPERATING MANUAL

CAUTION

FOR THE SAFETY PURPOSE, PLEASE READ THIS MANUAL THROUGHLY

BEFORE

ATTEMPTING

USE

THIS

BREAKER.

ANY

FALES

OPERATING PROCEDURES WILL CAUSE DAMAGES OF THE MACHINE.

ALWAYS KEEP THIS MANUAL TO AN EASILY ACCESSABLE PLACE.

MARUZEN KOGYO CO., LTD.

(Revised Mar.14, 2013

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Page 1 OPERATING MANUAL CAUTION FOR THE SAFETY PURPOSE, PLEASE READ THIS MANUAL THROUGHLY BEFORE ATTEMPTING THIS BREAKER. FALES OPERATING PROCEDURES WILL CAUSE DAMAGES OF THE MACHINE. ALWAYS KEEP THIS MANUAL TO AN EASILY ACCESSABLE PLACE. MARUZEN KOGYO CO., LTD. (Revised Mar.14, 2013...
Page 2 We recommend you always use Maruzen genuine components and parts. Replacing components and parts from other sources may cause damages to this machine and endanger operators. MARUZEN KOGYO CO., LTD. 155-8 NAGABUSE, MISHIMA-SHI, SHIZUOKA-KEN, 411-0824, JAPAN...
Page 3: Table Of Contents
CONTENTS Safety Information .............. 4 ～ 7 Safety Alert Classifications ........... 4 Safety Alerts ..............5 ～ 7 Introductions ............... 8 Specifications & Descriptions ..........9 Precaution Labels and Positions ........10 Inspection before Each Operation ........11 Guidelines ................12 ～ 13 Operation................
Page 4: Safety Information
SAFETY INFORMATION To enable you to use this machine safely, safety precautions and labels are given in this manual and affixed to the machine to give explanations of situations involving potential hazards and of the methods of avoiding such situations. SAFETY ALERT CLASSIFICATIONS The following safety alert symbols are used to inform you that there is a potential hazardous situation that may lead to personal injury or...
Page 5: Safety Alerts
SAFETY ALERTS DO NOT OPERATE THE MACHINE UNLESS THE FOLLOWING SAFETY INSTRUCTIONS HAVE BEEN THOROUGHLY READ AND UNDERSTOOD! WARNING Before operating the equipment, be sure ware personal protective equipments such as follows: 1. Helmet 2. Protective goggles 3. Protective boots 4.
Page 6 CAUTION Do not touch the machine with your bare hands 1. The oil tank may become hot under continuous running. Do not touch the equipment with your bare hands. 2. Tools may become hot under continuous use, make sure to ware gloves before any contact with the tools. * Failure to observe this precaution can result getting burned CAUTION...
Page 7 WARNING Never operate the breaker when bystanders are in the work area 1. Do not operate the breaker if any people are within the area where flying debris or movement of the breaker may injure them. 2. For preventing flying debris, make sure protection fences are being set up.
Page 8 INTRODUCTION 1. This hydraulic breaker is designed to be used for the following purposes. (1) Breaking concrete and asphalt (2) Anchoring and pile driving (3) Digging or breaking hard soil (4) Compacting soil (5) Cutting asphalt DO NOT operate this breaker on the following situations: (1) drench part of the breaker or whole breaker into water or seawater.
Page 9: Specifications & Descriptions
SPECIFICATIONS & DESCRIPTIONS Accumulator Control Lever Handle Overall Weight 22kg (Without tool) Overall Dimensions 703mm X 421mm High Pressure Hose Working Pressure 80～120kgf/㎠ Side Handle (7.8～11.8Mpa) Max. Pressure 210kgf/㎠ Coupler (Male) (20.6MPa) Oil Flow 15～30L/min Blow Per Minute 1100～1800bpm Shank Size Hex.
Page 10: Precaution Labels And Positions
PRECAUTION LABELS AND POSITIONS * Make sure labels are legible. Replace new one when they are illegible.
Page 11: Inspection Before Each Operation
INSPECTIONS BEFORE EACH OPERATION 4. Cracks on handle grips 1. Loose nut For the purpose of keeping the breaker in good condition, make sure the following inspection items 8. Oil leakage 3. Loose hose attachment are done each time before using. (Refer the drawing on the right) 2.
Page 12: Guidelines
GUIDELINES Following these guidelines while using this breaker: 1. When intend to use other power source (other than Maruzen hydraulic power units), make sure the pressure of the power source is in the range of 140 ～ 210kgf/㎠ and oil flow is in the range prescribed 2.
Page 13: Operation
11. When frequently attach and detach to the power source, hydraulic oil will decrease accordingly. Always make sure the hydraulic oil level before operating and refill if necessary. 12. After the operation, use tool to push up the piston. CAUTION Immediately STOP the power source if the breaker does not stop after releasing the control lever.
Page 14 3. Unlock the latch ④on breaker, load the tool⑤ and lock the latch again. 4. Start engine in power source and let engine run for a while to warm up the machines. 5. Clasp the handle grip⑥, bear down the breaker, clasp the control lever gently breaker start...
Page 15 SUITABILITY OF HYDRAULIC POWER SOURCE AND BH163 BREAKER Refer to the following charts while using with power source other than Maruzen power units. (1) Suitability of oil flow (Pressure is in the range of 120 ～ 210kgf/㎠) BH163 Activation Performance Effect on BH201 breaker Recommendation Countermeasure...
Page 16: Periodically Inspection
PERIODICAL INSPECTION Ask your dealer for the periodical inspections. Inspection Items Operating Hours Nitrogen gas charge in accumulator 300 hours or 1 Year Replacement of accumulator diaphragm 500 hours or 2 years Replacement of Valve Rod O ring 500 hours or 2 years Replacement of U-cup packing 500 hours or 2 years Replacement of each O ring...
Page 17: Troubleshooting
TROUBLE SHOOTING Symptoms Causes Countermeasures Grip the control lever but does not start 1. Power source is off (Switch lever is Start the power source (Turn the not in ON position) switch lever to On position) 2. Hoses are not connected Connect hoses 3.
Page 18 (Adjust oil flow to the right range) An abrupt stop during operation 1. Couplers are not connected 1. Check each connected parts 2. Damage of control valve 2. Replace a control valve * Oil leakage from control lever 1. Damage, wear or harden of O ring 1.
Page 19 EXPLODED VIEW MODEL BH221...