Husqvarna FS 520 用户手册

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•  Turn machine Start Switch (DD) to OFF (0) position.  

Let engine cool.  Use Depth Control (EE) to tilt machine 

slightly backwards.
•  Reposition Oil Drain Hose (NN) to side of machine.  

Set a suitable container, large enough to hold engine oil 

capacity, beside machine to catch oil.
•  Open end of Oil Drain Hose (NN), and let oil drain into 

container.  After oil is drained, replace Oil Drain Hose 

(NN) end, tighten securely, return hose to original position. 
•  Fill engine with recommended quantity of oil - see en-

gine manual for details.
•  Dispose of used oil in an environmentally safe manner.

This engine starting battery (RR) is a sealed unit and 

will never require the addition of water.  Keep the top of 

the battery and the cable connections clean and free of 

corrosion.  Coat the connections with a high tempera-

ture grease or petroleum jelly.  Periodically check the 

battery by measuring its voltage with a DC voltmeter.  

A fully charged battery will be .8 volts.  It is recom-

mended that voltage checking and charging be done at 

the battery cable on the starter motor at the front of the 

saw.
Charge battery at least once a month.  Charging can 

be done by running engine for at lease 0 minutes or 

connect battery to a trickle charger ( amps or less) 

for 8 hours.  If battery will not start engine, it is recom-

mended that battery be replaced or charged with a 

trickle charger ( amp rating or less).

A fully charged battery will be .8 volts.
Jump starting this equipment from a larger battery or 

boost charger is not recommended.  Doing so could 

cause permanent damage to the internal battery.