Operation - Ryobi OCS1830BL Original Instructions Manual

in place.
Replace the sprocket cover, and turn the chain tensioner
knob until nearly tight. Turn the chain tension adjustment
ring until the saw chain is properly tensioned. Push the
guide bar upwards, then check the chain tension again. Do
not tension the chain too tight.
Tighten the knob again after the chain is well-tensioned.
ADJUSTING THE CHAIN TENSION
See page 13 and 23.
Loosen the chain tensioner knob slightly by turning it
counterclockwise.
To increase the chain tension, turn the chain tensioner
adjustment ring clockwise and check the chain tension
frequently. To reduce the chain tension, turn the chain
tensioner adjustment ring counterclockwise and check the
chain tension frequently.
The chain tension is correct when the gap between the
cutter in the chain and the bar is between 4–5.5 mm.
Pull the chain in the middle of the lower side of the bar
downwards (away from the bar) and measure the distance
between the bar and the chain cutters.
Tighten the chain tensioner knob by turning it clockwise.
NOTE: The temperature of the chain increases during
normal operation causing the chain to stretch. Check the
chain tension frequently and adjust as required. A chain
tensioned while warm may be too tight upon cooling. Make
sure that the chain tension is correctly adjusted as specified
in these instructions.

OPERATION

INSTALLING THE BATTERY PACK
See page 13.
Place the battery pack in the product. Align raised ribs on
the battery pack with the grooves in the battery port.
Make sure that the latches on the battery pack snap in
place and that the battery pack is secured in the chainsaw
before beginning operation.
HOLDING THE CHAINSAW
See page 13.
Always hold the chain saw with your right hand at the rear
handle and your left hand at the front handle. Grip both
handles with the thumbs and fingers encircling the handles.
Ensure that your left hand is holding the front handle so that
your thumb is underneath.
STARTING THE PRODUCT
See page 13.
Before starting the product, install the battery pack in the
product, and make sure that the chain brake is in run
position by pulling chain brake lever /hand guard toward
the front handle.
To start the product, pull the trigger release, then press the
switch trigger.
CHECKING AND OPERATING CHAIN BRAKE
See page 13.
Engage the chain brake by rotating your left hand around
the front handle. Allow the back of your hand to push the
chain brake lever/hand guard toward the bar while the
chain is rotating rapidly. Be sure to maintain both hands on
the saw handles at all times.
Reset the chain brake back into the Run position by
grasping the top of the chain brake lever / hand guard and
pulling toward the front handle until you hear a click.
NOTE: The temperature of the chain increases during
normal operation causing the chain to stretch. Check the
chain tension frequently and adjust as required. A chain
tensioned while warm may be too tight upon cooling. Make
sure that the chain tension is correctly adjusted as specified
in these instructions.
ADDING CHAIN LUBRICATING OIL
See page 12.
WARNING
Never work without chain lubricant. If the saw chain is
running without lubricant, guide bar and saw chain can
be damaged. It is therefore essential to check the oil
level in the oil level gauge frequently and every time
before starting to use the chain saw.
Clear the surface around the oil cap to prevent
contamination.
Unscrew and remove the cap from the oil tank.
Pour the oil into the oil tank and monitor the oil level gauge.
Ensure that no dirt enters the oil tank while filling.
Put the oil cap back on and tighten it up. Wipe away any
spillage.
One full oil tank will enable you to use the saw for 20- 40
minutes.
NOTE: A properly functioning chain and bar lubricating
system normally discharges oil from the chain during use.
To check the functionality of the chain and bar lubricating
system, point the tip of the chain at a light coloured surface,
such as a newspaper. A distinct line of oil splatter should be
observed after a short time.This is applicable for chainsaws
with a chain oil pump. Some chainsaws have a bulb, which
has to be pressed, in which case this may not work.
Recommended chain lubricating oil
■ The manufacturer recommends you use only RYOBI
chainsaw lubricating oil. (Available from your authorised
Ryobi service centre)
INSTRUCTIONS CONCERNING THE PROPER TECH-
NIQUES FOR BASIC FELLING, LIMBING, AND CROSS-
CUTTING
Understanding the forces within the wood
When you understand the directional pressures and
stresses inside the wood, you can reduce the "pinches"
or at least expect them during your cutting. Tension in the
wood means the fibers are being pulled apart and if you
cut in this area, the "kerf" or cut tends to open as the saw
goes through. If a log is being supported on a saw horse
and the end is hanging unsupported over the end then
tension is created on the upper surface due to the weight
of the overhanging log stretching the fibers. Likewise, the
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