Dolmar MS-331 U, MS-261 C, MS-261 U, MS-331 C Technical Data, Maintenance instructions, First Aid

Maintenance instructions

-The condition of the Brush Cutter/String Trimmer must be checked before operation, in particular of the cutting tool, the protective devices and also the shoulder strap. Special attention must be paid to the cutting blade which must be correctly sharpened.

-Stop the engine and remove spark plug connector when replacing or sharpening cutting tools, and also when cleaning the machine or cutting tool.

-Operate the Brush Cutter/String Trimmer with as little noise and contamination as possible. In particular check the correct setting of carburetor.

-Clean the Brush Cutter/String Trimmer regularly and ensure that all screws and nuts are well tightened.

-Never service or store the Brush Cutter/String Trimmer in the vicinity of naked flames.

-Always store the Brush Cutter /String Trimmer in locked rooms and with a emptied fuel tank.

-Do not perform any modifications on the Brush Cutter/String Trimmer as this will endanger your safety.

-The performance of maintenance or repair work by the user is limited to those activities as described in this instruction manual. All other works are to be done by an Authorized Service Agent. Use only genuine spare parts and accessories supplied by DOLMAR.

Use of non-approved accessories and tools means increased risk of accidents.

DOLMAR will not accept any liability for accidents or damage caused by the use of non-approved cutting tools and fixing devices of cutting tools, or accessories.

First Aid

Make sure that a first-aid box is available in the vicinity of the cutting operations in case of accident.

TECHNICAL DATA

MODEL			MS-230 C/231 C	MS-260 C/261 C		MS-260 U/261 U	MS-330 C/331 C	MS-330 U/331 U
Dry Weight			5.7 kg		5.7 kg	6.5 kg	6.5 kg	7.3 kg
Engine			TLE23FD-TBM/TBD		TLE26FD-TBM/TBD		TLE33FD-TBM/TBD
Bore x Stroke			31 x 30 mm		33 x 30 mm		36 x 32 mm
Displacement			22.6 cm3		25.6 cm3		32.6 cm3
Maximum output			0.7 kW (0.94 HP)/		0.8 kW (1.07HP)/8000 rpm		0.97 kW (1.3 HP)/7500 rpm
			8000 rpm
Fuel			Mixture of gasoline and lubricanting oil (ratio 50:1)
Lubricating oil					Two-stroke motor oil FC
Fuel Tank Capacity					0.6 lit.		0.8 lit.
Spark Plug					NGK BPMR8Y
Carburetor			Diaphragm type (with 2 passage for air and mixture)
Main Pipe	Drive Shaft	Flex/Rigid				Rigid
		Diameter			7 mm Hollow (5 mm)
		Upper end			Involute Spline (7 x 7 x 0.75)
		Lower end
	Tube	Type				Straight
		Diameter				25.4 mm
		Wall thickness				1.5 mm
		Length				1500 mm
		Finish			Silver Anodized
	Bearings	Type			Bronze bush in rubber
String Head		Type	Tap and Go				Tap and Go
		O.Dia.	105 mm			N/A	105 mm	N/A
		Line size	2.4 mm				2.4 mm
Gear Case Assy		Arbor size			M10LH FEM
		Gear ratio			14/19		17/21
Clutch Case Assy		Anti-Vib				Yes
		Number Brgs				2
		Drum dia.			54 mm		78 mm
Throttle Control		Overmolded				Yes
		First Idle				Yes
Hanger		Type				Fixed
Guard		Type	Grass			Weed Blade	Grass	Weed Blade
		Swath dia	41 cm (16 in.)		43 cm (17 in.)	N/A	43 cm (17 in.)	N/A
Handle Assy		Type	Loop			Bike	Loop	Bike
		Barrier				N/A
		Overmolded	Yes (Black)			N/A	Yes (Black)	N/A
Band Shoulder		Type			Single			Double
Tool Set						Yes
Blade		Size	N/A			23 cm (9 in.)	N/A	23 cm (9 in.)
		Type				Quard		Quard
Blade Holder			N/A			Yes	N/A	Yes

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