Furukawa F Series User manual

F(S)-F105E
(
F1, F2, F3, F4, F5
)
INSTRUCTION MANUAL

Introduction
Thank you very much for purchasing our product. This product is a high-performance hydraulic
breaker developed with our experience of many years and up-to-date engineering techniques. And has
passed stringent tests before shipment. This manual explains the correct handling method, inspection,
and repair for the daily work in order to use this breaker safely and efficiently. For the base machine
(hydraulic excavator, etc.) on which this breaker is mounted, refer to the instruction manual of the base
machine. Be sure to read this manual and fully understand the operation, inspection, and repair before
using this breaker. Negligence of the contents of this manual will lead to a serious accident.
"Carelessness and negligence" cause an accident.
"Safety first"
You have the key to safety!
WARNING
•
••
•Use this breaker according to the regulations of the country where it is used.
•
••
•This breaker should not be used for any work other than the specified works.
•
••
•If this breaker is used carelessly, an accident can occur, leading to serious injury or
death.
•
••
•The operator and maintenance man should read and fully understand this manual
before operating or repairing the breaker.
•
••
•Keep this manual near the machine so that people who operate/control the machine can
read it before operation.
•
••
•If this manual is lost or damaged, order a new one from Furukawa Rock Drill or its
distributor.
•
••
•It is obligatory to "conduct legal inspection" stipulated in the Industrial Health and
Safety Law for this breaker.
•
••
•If this breaker is transferred, be sure to attach this manual to the breaker.
•
••
•The manufacturer can change the contents of this manual without any obligations
because it should be constantly up-to-date. Please contact Furukawa Rock Drill or its
distributor for any information not contained in this manual.
•
••
•For safety, common items are described in "SAFETY PRECAUTIONS," and others are
mentioned on the succeeding pages.

CONTENTS
Warning for prevention of danger ................................................................................ 0–1
Outline of machine ....................................................................................................... 0–2
Location of model name and serial No. ....................................................................... 0–3
Location of warning label ............................................................................................. 0–4
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nSafety
SAFETY PRECAUTIONS ............................................................................................ 1–1
Safety control............................................................................................................ 1–1
Precautions before and after starting the engine...................................................... 1–6
Precautions for safe operation.................................................................................. 1–8
Precautions for parking and stopping the machine................................................... 1–17
Precautions for maintenance .................................................................................... 1–18
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nOperation
NAME OF COMPONENTS AND SPECIFICATIONS ................................................... 2–1
Name of components and specifications .................................................................. 2–1
FUNCTION OF EACH PART ....................................................................................... 2–2
OUTSIDE DIMENSIONS .............................................................................................. 2–3
Outside dimensions of hydraulic breaker.................................................................. 2–3
Outside dimensions of bracket ................................................................................. 2–3
Types of rod and major applications ......................................................................... 2–6
Oil hose plug and cap ............................................................................................... 2–7
MOUNTING ON BASE MACHINE ................................................................................ 2–8
OPERATION PROCEDURES (BREAKING) ................................................................ 2–11
Precautions for safe operation.................................................................................. 2–11
Breaking operation.................................................................................................... 2–12
Optimal thrust ........................................................................................................... 2–13
Direction of thrust...................................................................................................... 2–14
Precautions for operation.......................................................................................... 2–15
Storage after operation ............................................................................................. 2–19

LONG-TERM STORAGE .............................................................................................. 2–20
TROUBLESHOOTING.................................................................................................. 2–21
HYDRAULIC OIL........................................................................................................... 2–23
Selection of hydraulic oil ........................................................................................... 2–23
Classification of hydraulic oil and grease.................................................................. 2–23
Oil temperature control ............................................................................................. 2–24
Oil contamination ...................................................................................................... 2–24
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nInspection/Maintenance
MAINTENANCE, INSPECTION AND REPAIR.............................................................. 3–1
Periodical inspection and repair................................................................................ 3–1
Daily inspection / inspection and maintenance before operation.............................. 3–3
Tightening torque ...................................................................................................... 3–5
WEAR LIMIT DIMENSIONS FOR CONSUMABLE PARTS ......................................... 3–8
REPLACEMENT OF ROD & FRONT BUSH.........................................................................3–10
Removing from T-box and side bracket .................................................................... 3–11
ADJUSTMENT OF ADJUSTER .................................................................................... 3–13
CHARGING THE ACCUMULATOR WITH N2 GAS AND INSPECTION OF CHARGE PRESSURE ....... 3–14
N2 gas charging tool assembly................................................................................. 3–14
Inspection of charge pressure .................................................................................. 3–15
Charging accumulator with N2 gas ........................................................................... 3–16
N2 gas charging pressure for accumulator ............................................................... 3–16

0 – 1
Warning for prevention of danger
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in serious
injury or death. This signal word is to be limited to the extreme situations. (Risk of
serious injury or death)
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in serious
injury or death. (Possibility of serious injury or death)
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices. (Minor or
moderate injury)
NOTICE
Signs used to indicate a statement of company policy directly or indirectly related to the
safety of personnel or protection of property.
Most accidents are caused by disregarding the basic rules of operation, inspection, or repair, or by
neglecting the inspection before operation. Many accidents can often be avoided by recognizing
potentially hazardous situations before they occur. Before operating, inspecting, or repairing this
breaker, be sure to read and fully understand the preventive methods and WARNINGS described on
the breaker or in this manual. Thoroughly understand the contents of this manual before operation,
inspection, or repair of the breaker.
Safety labels and messages are classified as follows so that users can understand the warnings on the
breaker or in this manual.
The safety messages include the preventive measures to avoid danger.
For safety, common items are described in "SAFETY PRECAUTIONS," and others are mentioned in
the succeeding pages.
FURUKAWA Rock Drill cannot anticipate every possible circumstances that might involve a potential
hazard on operation, inspection, or repair. Therefore, the WARNINGS in this manual are not all
inclusive. If an operation, inspection, or repair not described in this manual is conducted, you must
assume responsibility for safety.

0 – 2
Outline of machine
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nSpecified works
WARNING
Do not use this breaker for any work other than the specified works.
This breaker can be used for breaking, dismantling, and scaling in mines, stone-breaking, or building
engineering work (railroad, dam, dismantling and construction). The applicable works are as follows:
•Breaking with hammering
•Dismantling with hammering
•Scaling with hammering
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nRunning-in operation
This breaker has passed strict tests and inspections before delivery. However, if using the breaker
forcibly at the beginning, the functions will be effected and its service life will be shortened. Carry out
running-in operation by paying attention to the following items for the initial 100 hours (the time
displayed by a service meter of the base machine).
•Warm up the base machine by idling for 5 minutes after starting the engine.
•Move the boom and arm for approx. 5 minutes after warm-up operation to raise the hydraulic oil
temperature.
•Break and dismantle without overstraining the machine while the throttle lever is at the
intermediate section.

0 – 3
Location of model name and serial No.
•The model name and serial No. are stamped on the cylinder top of the breaker main body.
Advise the distributor of the model and machine No. when placing an order for parts or asking for
repair.
•Entry of date of delivery, dealer, and serviceman
Date of delivery: (year) (month) (day)
Model name Serial No.
Dealer
Address Phone
Serviceman
* Part Nos. shown in this manual are subject to change without notice.
Model-Ser. No.

0 – 4
Location of warning label
The warning labels show the instructions to prevent accidents caused by careless or wrong handling
during inspection and repair. Follow the instructions shown by the labels as well as those shown in this
manual.
NOTICE
If a warning label comes off or is damaged, stick it on again or replace it with a new one.
(1) 090200-04208
(2) 090200-04344
(2)
(1)