McCulloch MAC 250 B instruction manual Technical Data Sheet

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TECHNICAL DATA SHEET

MODEL: Mac 250 B

 

ENGINE

 

Cylinder displacement, cm3

25

At maximum engine power, rpm

8000

Maximum rotational frequency of the spindle

10000

Engine speed at recommended maximum spindle

 

rotational frequency

7400

Recommended speed idling, rpm

3000

Maximum engine power, measured in

 

accordance with ISO 8893, kW

0,7

Catalytic converter muffler

Yes

IGNITION SYSTEM

 

Spark plug

Champion RCJ--6Y

Electrode gap, mm

0,6

FUEL AND LUBRICATION SYSTEM

 

Fuel tank capacity, cm3

340

WEIGHT

 

Weight without fuel, cutting attachment and guard, kg

5,6

NOISE EMISSIONS

 

(see Note 1)

 

Sound power level, measured dB(A)

110,3

Sound power level, guaranteed LWA dB(A)

114,0

NOISE LEVELS

 

(see Note 2)

 

Equivalent sound pressure level at the operators’ ear,

 

measured according to EN/ISO 11806 and ISO 22868, dB(A)

 

Equipped with grass blade (original)

99,0

Equipped with trimmer head (original)

98,5

VIBRATION LEVELS

 

(see Note 3)

 

Equivalent vibration levels (ahv,eq) at handles, measured

 

according to EN ISO 11806 and ISO 22867, m/s2

 

Equipped with grass blade (original), left/right

4,4/6,9

Equipped with trimmer head (original), left/right

4,7/4,2

Note 1: Noise emissions in the environment measured as sound power (LWA) in conformity with EC directive 2000/14/EC. Reported sound power level for the machine has been measured with the original cutting attachment that gives the highest level. The difference between guaranteed and measured sound power is that the guaranteed sound power also includes dispersion in the measurement result and the variations between different machines of the same model according to Directive 2000/14/EC.

Note 2: Reported data for equivalent sound pressure level for the machine has a typical statistical dispersion (standard deviation) of 1 dB(A).

Note 3: Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1 m/s2.

Model Mac 250 B (3/8 LH arbor shaft thread)

Centre hole in blades/cutters, ∅ 25,4 mm

Approved accessories

Type

Cutting attachment /guard, part. no.

Grass blade/grass cutter

Grass (∅ 20 cm, 4--teeth)

530 05 58 92 / 575 35 27 01

Trimmer head

TNG7 (∅ 2,4 mm line)

537 41 92--02 / 575 35 27 01

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Contents Manuel D’INSTRUCTIONS BetriebsanweisungManual DE Instrucciones Identification What is WHAT? Identification of Symbols Safety RulesAny other way before using the unit Operator SafetyUnit / Maintenance Safety Hazard ZoneCutting Safety AssemblyFuel Safety Carton ContentsTools Required Assembly of Shoulder HarnessShoulder Harness Adjustment Attaching the HandlebarConfiguring Your Unit Assembly Information Trimmer HeadInstallation of the Trimmer Head Attaching the ShieldAssembly Information Weed Blade Installation of the Metal BladeAttaching the Transport Guard Operation HOW to Stop Your UnitHOW to Start Your Unit Fueling EngineOperating Position Starting a Warm EngineStarting a Flooded Engine Operating Instructions for USE with Trimmer HeadCutting Methods Operating Instructions for USE with Weed BladeCheck for Loose Fasteners and Parts MaintenanceInspect and Clean Unit and Labels Check for Damaged or Worn PartsReplace Spark Plug Service and AdjustmentsClean AIR Filter Replacing the LinePage Storage Troubleshooting Table Cause Remedy Declaration of Conformity EC Declaration of Conformity Only applies to EuropeTechnical Data Sheet

MAC 250 B specifications

The McCulloch MAC 250 B chainsaw is a powerful and reliable tool that is well-suited for both professional and home users. It is designed to tackle a variety of tasks, from cutting firewood to pruning trees, making it a versatile choice for any outdoor enthusiast.

One of the standout features of the MAC 250 B is its robust engine. The chainsaw is equipped with a 25cc, air-cooled, two-stroke engine that provides a high power-to-weight ratio. This means that despite its relatively lightweight design, the MAC 250 B delivers impressive performance. The engine is engineered for efficient fuel consumption, allowing users to complete their tasks without the need for frequent refueling.

The chainsaw also features a 12-inch guide bar, which strikes a perfect balance between cutting capability and maneuverability. This makes it particularly effective for pruning and small to medium-sized tree maintenance. The chainsaw's chain is designed for easy sharpening and replacement, ensuring that users can keep their tool in optimal condition for the best cutting performance.

Safety is a paramount design consideration for the MAC 250 B. It is equipped with several safety features, including a chain brake that automatically stops the chain in the event of a kickback, protecting the user from potential injuries. Additionally, the chainsaw has an easy-to-access on/off switch, allowing for quick shut-off when needed.

Another notable aspect of the McCulloch MAC 250 B is its user-friendly design. The chainsaw has a comfortable handle that provides a solid grip, reducing fatigue during extended use. The lightweight construction, coupled with the well-balanced design, allows users to maneuver the chainsaw with ease, even in tight spaces.

In terms of maintenance, the MAC 250 B is designed for easy access to spark plugs and air filters, which simplifies routine upkeep. This ensures that the chainsaw remains in peak working condition with minimal effort, enhancing its longevity.

Overall, the McCulloch MAC 250 B is an excellent choice for those seeking a reliable and efficient chainsaw. With its combination of power, safety features, and ergonomic design, it is equipped to handle a range of outdoor tasks, making it a valuable tool for both novices and experienced users alike.
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