Stihl MS 500i, Instruction Manual

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► If the throttle trigger is stiff or does not spring
back to its idle position: Do not use your chain‐
saw and contact your STIHL servicing dealer
for assistance.
The throttle trigger is defective.
Stopping the Engine
► Start the engine.
► Depress the stop switch.
The engine stops and the stop switch springs
back to the off position.
► If the engine does not stop: Do not use your
chainsaw and contact your STIHL servicing
dealer for assistance.
The saw has a malfunction.
10.6 Checking Chain Lubrication
► Start the engine and disengage the chain
brake.
► Hold the guide bar over a light surface.
► Open the throttle.
Chain oil is thrown off the chain and is visible
on the light surface. Chain lubrication is oper‐
ating properly.
11 Operating the Saw
11.1 Adjusting Oil Feed Rate
The chainsaw has an adjustable oil pump.
0000-GXX-3165-A0
A
1 2
The oil feed rate is suitable for most applications
when the oil pump adjusting screw (1) is in posi‐
tion E (Ematic).
The oil pump feed rate can be adjusted to suit
different bar lengths, wood species and working
techniques. The range of adjustment of the oil
pump adjusting screw (1) is limited by a stop (2).
The stop (2) can be depressed in order to further
increase the oil feed rate.
To increase oil feed rate
► Shut off the engine and engage the chain
brake.
► Turn the oil pump adjusting screw (1) clock‐
wise.
To increase oil feed rate still further
► Shut off the engine and engage the chain
brake.
► Use a suitable tool to depress the stop (2).
The stop (2) remains permanently depressed.
NOTICE
■ The oil tank will be drained at a faster rate if
the oil pump adjusting screw (1) is in the ‘A’
segment. The point where the saw chain is no
longer being lubricated properly will be
reached sooner.
► Fill the oil tank to maximum.
► Move the oil pump adjusting screw away
from the ‘A’ segment when the increased oil
flow rate is no longer required.
► Turn the oil pump adjusting screw (1) clock‐
wise.
To reduce oil feed rate
► Shut off the engine and engage the chain
brake.
► Turn the oil pump adjusting screw (1) counter‐
clockwise.
11.2 Holding and Controlling the
Chainsaw
0000-GXX-2948-A1
► Hold and control your chainsaw with your left
hand on the handlebar and your right hand on
the control handle. Wrap thumb of left hand
around the handlebar and thumb of right hand
around the control handle.
11.3 Sawing
WARNING
■ If kickback occurs, the chainsaw can be
thrown up in the direction of the operator. This
may result in serious or fatal injury to the user.
► Always cut with the chain running at full
speed.
► Do not cut with the upper quadrant of the
guide bar nose.
► Begin the cut with the chain running at full
speed and keep the guide bar vertical.
11 Operating the Saw English
0458-809-0121-B. VA0.A21. 17