MK Diamond Products Hatachi Cutoff Saw Owner's manual
- Type
- Owner's manual
MK Diamond Products Hatachi Cutoff Saw is a reliable, high-performance tool for professionals in the construction industry. It is equipped with a 75 mL engine, providing an impressive 3.9 kW of power, making it one of the top performers in its class. The engine is designed with combustion analysis and an exhaust-pulse scavenging muffler, ensuring optimal performance and compliance with strict environmental regulations.
This cutoff saw boasts a range of features that enhance its durability and ease of use. Its strong metal protectors safeguard the tool from damage during cutting operations, and the tool-less removable prefilter simplifies maintenance, allowing for frequent cleaning without the need for tools. The innovative Pure Fire Engine complies with stringent emission standards, reducing the environmental impact.
MK Diamond Products Hatachi Cutoff Saw is a reliable, high-performance tool for professionals in the construction industry. It is equipped with a 75 mL engine, providing an impressive 3.9 kW of power, making it one of the top performers in its class. The engine is designed with combustion analysis and an exhaust-pulse scavenging muffler, ensuring optimal performance and compliance with strict environmental regulations.
This cutoff saw boasts a range of features that enhance its durability and ease of use. Its strong metal protectors safeguard the tool from damage during cutting operations, and the tool-less removable prefilter simplifies maintenance, allowing for frequent cleaning without the need for tools. The innovative Pure Fire Engine complies with stringent emission standards, reducing the environmental impact.
PRODUCT NAME
Hitachi Engine Cutter
Models CM 75EAP
CM 75EBP
MARKETING OBJECTIVE
APPLICATIONS
SELLING POINTS
International Sales Division
Due to optimum engine design based on combustion analysis and the adoption of a new exhaust-pulse
scavenging muffler, this engine cutter product is equipped with an innovative 75-mL engine offering top-level
output in its class and conforming to exhaust gas regulations in the U.S. and Europe (EPA PHASE2, CARB Tier3,
and 2004/26/EC). This product features a high performance engine, a variety of strong metal protectors, and high
maintainability that enables frequent tool-less prefilter cleaning. With these new models, we aim to strengthen
Hitachi’s engine tool lineup and increase sales.
Cutting work by a diamond wheel
• Building concrete: Reinforced concrete, heavy and lightweight concrete blocks, ALC plates, ASROC plates, etc.
• Secondary concrete products: U-shaped gutter, U-shaped gutter cover, distribution box, manhole,
sidewalk/driveway curbstone, sidewalk paving stone, flat concrete plate, etc.
• Cast iron pipe (electrodeposition type used)
Cutting work by a metal cut-off wheel
• Reinforcing bars, steel bars, deformed steel materials for building, steel pipes, cast iron pipes, etc.
CONFIDENTIAL
LIST No.
CM 75EAP: F070
CM 75EBP: F071
Sep. 2014
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SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMEN
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[NEW FEATURES]
Maximum output of 3.9 kW in class-top level
Strong metal protectors
Easy-to-maintain tool-less removable prefilter
New Pure Fire Engine
Standard accessory tools housed in cutter body
Dust-proof recoil starter
Compensator structure
Decompression valve
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REMARKS:
• For more information about HANDLING INSTRUCTIONS, visit our website at:
http://www.hitachi-koki.com/manual_view_export/
• This TECHNICAL DATA utilizes symbols to denote the company names and model names of our
competitors. The symbols utilized herein are as follows:
Symbol utilized
Competitor
Company name Model name
A
Husqvarna
K760 (12”)
B K760 (14”)
C
Makita
EK7300
D EK7301
CONTENTS
Page
SELLING POINTS -------------------------------------------------------------------------------------------------------------- 1
SPECIFICATIONS -------------------------------------------------------------------------------------------------------------- 4
COMPARISON WITH SIMILAR PRODUCTS ---------------------------------------------------------------------------- 5
PRECAUTIONS ON SALES PROMOTION ------------------------------------------------------------------------------ 6
1. Safety instructions ----------------------------------------------------------------------------------------------- 6
2. Specific instructions to the customers ----------------------------------------------------------------------- 7
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Maximum output of 3.9 kW in class-top level
*
Maximum output of 3.9 kW (top in its class) is achieved due to optimized engine parameters based on the
full utilization of combustion analysis.
<12” cutting blade model>
HITACHI
CM 75EAP
A C
Maximum output 3.9 kW 3.7 kW 3.8 kW
<14” cutting blade model>
HITACHI
CM 75EBP
B D
Maximum output 3.9 kW 3.7 kW 3.8 kW
Strong metal protectors
All cutter protectors are metallic and strong enough to protect the cutter against damage by cut materials.
• Metallic cover plate
The metallic cover plate on the arm cover tip protects the arm cover against damage by cut materials. The
cover plate is secured to the arm cover by a single bolt for easy cover replacement.
• Metallic front foot plate
The front foot portion consists of a rubber foot portion and a metallic foot plate. When the engine cutter is
placed on a floor or ground, the high shock-absorbing rubber foot grips the floor. When the engine cutter is
tilted, the metallic foot plate touches a cutting object to protect the engine cutter against the cutting object.
SELLING POINTS
*: Based on our own research
Cover plate
Arm cover
Secured by bolt
Placed on the floor
The high shock-absorbing rubber foot
grips the ground and prevents the engine
cutter from moving due to vibration.
The metallic foot plate touches a
cutting object and protects the engine
cutter against the cutting object.
During cutting
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• Metallic lower guard
The metallic lower guard on the bottom of the engine cutter protects the cutter against damage caused by
stones and other objects when the engine cutter is placed on such objects.
Easy-to-maintain tool-less removable prefilter
You can frequently clean the prefilter by simply loosening the cleaner knob and detaching cleaner box (B).
The highly effective dust-catching paper filter used together with the prefilter assures excellent dust-proof
performance.
New Pure Fire Engine
The New Pure Fire Engine of low exhaust gas complies with exhaust gas regulations in the U.S. and
Europe (EPA PHASE2, CARB Tier3, and 2004/26/EC).
Regulation
g/kWh
CM 75EAP
75.0 mL
THC + NOx
(Unburned material + nitrogen oxides)
72
72 or less
Standard accessory tools housed in cutter body
The standard accessory tools (double ended open spanner and hex. bar wrench) can be housed in the
product body. You can carry the tools together with the engine cutter so as not to lose or leave the tools
behind.
Metallic lower guard
Cleaner knob
Cleaner box (B)
Double ended open spanner
Hex. bar wrench
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Dust-proof recoil starter
The dust-proof recoil starter and the wear-resistant starter rope enable use of the engine cutter in dusty
environments that include concrete dust.
Compensator structure
The compensator is designed to maintain a constant air-fuel mixture ratio (air-fuel ratio) so as to suppress
changes in the air-fuel ratio due to a clogged air cleaner, and thus assure stable engine output.
Decompression valve
The decompression valve temporarily reduces engine compression. This allows you to pull the recoil
starter lightly. The decompression valve closes automatically at engine startup.
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Model
Item
CM 75EAP CM 75EBP Remarks
Type of engine Two-cycle, air-cooled gasoline engine
Bore size x stroke 51.5 mm dia. x 36 mm
Engine displacement 75.0 mL (4.57 cu. in)
Max. engine power 3.9 kW (5.2 HP) at 9,200 min
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Idle engine speed 2,300 to 2,700 min
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Max. engine speed 9,800 min
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Max. spindle speed 4,200 min
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Fuel
Mixed fuel of gasoline and two-cycle oil
at 25 to 50 : 1
Two-cycle oil:
JASO FC grade
Fuel tank capacity
1,100 mL (37.2 fl oz)
(Continuously for 27 minutes)
Carburetor Diaphragm type (with priming pump) ZAMA
Ignition plug NGK BPMR7A
Starting Recoil starter type (with decompression valve)
Ignition system Magneto ignition
Air cleaner
Sponge filter ------------ 1
Paper filter -------------- 1
Nylon mesh filter ------- 1
Stopping Ground
Muffler Silencer
Clutch Automatic centrifugal, V-ribbed belt drive
Anti-vibration mechanism Engine floating type
Handle Equipped with anti-vibration device
Structure to hang with
three coil-springs
Cut-off
wheel
Outside dia. 305 mm (12”) 355 mm (14”)
Hole dia. 20 mm (25.4 mm with adapter collar)
Thickness 3.5 mm 4.0 mm
Abrasive
cut-off wheel
max.
circumference
speed
80 m/s or higher 100 m/s or higher
Max. cutting depth 100 mm 125 mm
Sound pressure level 99.5 dB(A) Measured value
Sound power level 115 dB(A) Measured value
Vibration
level
Front handle 2.2 m/s
2
2.4 m/s
2
Measured value
Rear handle 2.7 m/s
2
2.9 m/s
2
Dry weight 10.4 kg (22.5 lbs) 10.6 kg (22.9 lbs.)
Tank empty, without
cut-off wheel
Dimensions (L x W x H) 630 x 225 x 394 mm 630 x 225 x 420 mm
SPECIFICATIONS
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(Superior specifications: )
Maker
Model
Item
HITACHI
A B C D
CM 75EAP CM 75EBP
Cut-off wheel 12” 14” 12” 14” 12” 14”
Engine displacement 75.0 mL 73.5 mL 72.6 mL
Max. engine power 3.9 kW 3.7 kW 3.8 kW
Fuel tank capacity 1,100 mL 900 mL 1,100 mL
Operating time (full tank) 30 min. 23 min. 27 min.
Emission standards Conforming Conforming Conforming
Max. cutting depth 100 mm 125 mm 100 mm 125 mm 97 mm 122 mm
Priming pump Provided Provided Not provided
Decompression valve Provided Provided Provided
Water supply unit Provided Provided Provided
Compensator Provided Provided Provided
Material
Front ground
support
Rubber and steel Resin Resin
Arm protector Steel Steel and resin Resin
Lower guard Steel Steel Resin
Standard accessory tool
holder in cutter body
Provided
Provided
(Box wrench only)
Not provided
Dry weight*
1
10.4 kg 10.6 kg 9.7 kg 9.9 kg 10.0 kg 10.2 kg
Sound pressure level 99.5 dB(A) 97 dB(A) 100 dB(A)
Sound power level 115 dB(A) 112 dB(A) —
Vibration
level
Front handle
2.2 m/s
2
2.4 m/s
2
2.6 m/s
2
6.2 m/s
2
Rear handle 2.7 m/s
2
2.9 m/s
2
2.6 m/s
2
4.4 m/s
2
*1: Without fuel and cut-off wheel
COMPARISON WITH SIMILAR PRODUCTS
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1. Safety instructions
In the interest of promoting the safest and most efficient use of the Engine Cutter Models CM 75EAP and
CM 75EBP by all of our customers, it is very important when concluding a sale that the salesperson
carefully ensures that the customer seriously recognizes the importance of the Handling Instructions and
precautions indicated on the caution label and name plate attached to the product.
Refer to the Handling Instructions for how to handle, maintain, inspect, and store the Models CM 75EAP
and CM75EBP, and instruct the customer on proper use, particularly how to conduct periodic inspection.
Also pay attention to the supply system for consumables and the system for product repair.
A. Handling instructions
Although every possible effort has been made in the design, manufacture, and testing phases to ensure the
safety of the Models CM 75EAP and CM 75EBP, these products inevitably entail an inherent risk in use. To
avoid unnecessary risk and ensure that customers use these products safely and efficiently, the Handling
Instructions describe safety precautions specific to the Models CM 75EAP and CM 75EBP. Therefore,
when concluding a sale, make sure that the customer carefully reads the safety precautions, and give the
customer appropriate guidance.
B. Caution label and name plate
The caution label and name plate attached to the Models CM 75EAP and CM 75 EBP describe precautions
on safe use of the product.
[For Europe] [For North America]
PRECAUTIONS ON SALES PROMOTION
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[For Australia and Asia] [For South America]
2. Specific instructions to the customers
A. Starting and stopping procedures
Thoroughly instruct the customers to carefully follow the proper engine starting and stopping procedures.
In particular, instruct the customers about the differences in starting method between “a cold engine”
and “a warm engine,” fully opening the choke after initial combustion at choke starting, and checking the
wheel rotation at engine startup with the throttle half open.
B. Fuel safety
• These models adopt a two-cycle engine design. Instruct the customers to use a fuel mixture of lead-free
gasoline and two-cycle oil (JASO FC GRADE OIL or ISO EGC GRADE) at a ratio of 25 to 50:1.
• Instruct the customers to use a container intended for mixing gasoline and oil. Using resin containers
such as plastic containers and PET bottles may cause failure, as these containers may melt into the
mixture.
• Fuel stored for a long time becomes degraded and deteriorated. In addition, improper capping can
degrade the fuel in only one day, especially during summer. Instruct the customers not to store mixed
fuel, and only prepare the required amount of mixture when necessary.
C. Adjustment of the drive belt tension
The drive belt will lose its tension and eventually be worn out in long-term use. The customers are
requested to periodically adjust the tension of the drive belt and replace a worn-out belt with a new one.
D. Diamond wheel
•
Be sure to check the diamond wheel for chaps, cracks, and bends prior to use. Should any such defects
be found, avoid using the wheel.
• The customers are requested to cut 50 mm or less (in depth) at a time and repeat cutting of up to 50 mm
at least twice, in order to cut 50 mm or more. Cutting 50 mm or more at a time will shorten the service
life of the diamond wheel.
• The customers are requested not to use the diamond wheel for zigzag, curved, sided, and tilted cutting.
Such non-straight cutting will damage the diamond wheel and significantly shorten its service life.
• The customers are requested to always wear protective glasses, a dust respirator, and earplugs during
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cutting work, in order to ensure safety and protection against cutting dust and noise.
E. Cut-off wheels
• The customers are requested to only use the specified cut-off wheels (of the specified maximum service
speed). Never use cut-off wheels whose maximum speed is slower than specified. Doing so may
damage the engine cutter and cause unexpected accidents.
• Be sure to check the expiration date printed on the wheel prior to use. Note that an expired wheel may
break easily.
F. Storage
Instruct the customers to empty the fuel tank and perform idling until the engine stops to remove all
residual fuel in the carburetor before long-term storage of these models. If any fuel remains in the
carburetor, only gasoline in the fuel mixture will become volatile during the storage period and the fuel
line may be clogged with two-cycle oil. Thus, the engine cannot be started the next time.
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MK Diamond Products Hatachi Cutoff Saw Owner's manual
- Type
- Owner's manual
MK Diamond Products Hatachi Cutoff Saw is a reliable, high-performance tool for professionals in the construction industry. It is equipped with a 75 mL engine, providing an impressive 3.9 kW of power, making it one of the top performers in its class. The engine is designed with combustion analysis and an exhaust-pulse scavenging muffler, ensuring optimal performance and compliance with strict environmental regulations.
This cutoff saw boasts a range of features that enhance its durability and ease of use. Its strong metal protectors safeguard the tool from damage during cutting operations, and the tool-less removable prefilter simplifies maintenance, allowing for frequent cleaning without the need for tools. The innovative Pure Fire Engine complies with stringent emission standards, reducing the environmental impact.
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