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2. Disassemble and clean the saw chain and the
groove in the guide bar.
CAUTION: If the saw chain and
guide bar are not cleaned, they can
become rigid or blocked.
3. Attach the transportation guard.
4. Clean the product. Refer to
Maintenance on page 15
for instructions.
5. Do a complete servicing of the product.
Technical data
Technical data
525P4S 525P5S
Engine
Cylinder displacement, cm
3
25.4 25.4
Cylinder bore, mm 34 34
Stroke, mm 28 28
Recommended max. speed, rpm 11000-12000 11000-12000
Idle speed, rpm 2800-3000 2800-3000
Max. engine output, according to ISO 8893, kW/rpm 1.0/8500 1.0/8500
Catalytic converter muffler Yes Yes
Speed-regulated ignition system Yes Yes
Ignition system
Spark plug NGK BPMR8Y NGK BPMR8Y
Electrode gap, mm 0.65 0.65
Fuel and lubrication system
Fuel tank capacity, litre/cm
3
0.5/500 0.5/500
Oil tank capacity, litre/cm
3
0.2/200 0.2/200
Weight
Without fuel, cutting attachment and guard, kg 5.3 6.4
Noise emissions
1
Sound power level, measured according to ISO 22868,
dB (A)
107 107
Sound levels
2
Equivalent sound pressure level at the operator’s ear, measured according to ISO 22868, dB(A):
Equipped with approved accessory (original) 91 90
Vibration levels
3
1
Reported data for the noise output level has a typical dispersion (standard deviation) of 2 dB (A).
2
Reported data for equivalent sound pressure level for the product has a typical statistical dispersion (standard
deviation) of 1 dB (A).
3
Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1 m/s
2
.
24 703 - 009 - 04.09.2023
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