![background image](http://html1.mh-extra.com/html/ryobi/ry40500/ry40500_operators-manual_1504245021.webp)
21 - English
MAINTENANCE
WARNING:
When servicing, use only identical replacement
parts. Use of any other parts may create a
hazard or cause product damage.
WARNING:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1, along with
head protection. Failure to do so could result in
objects being thrown into your eyes and other
possible serious injuries.
WARNING:
To avoid serious personal injury, always remove the
battery pack from the product when cleaning
or performing any maintenance.
GENERAL MAINTENANCE
Before each use, inspect the entire product for
damaged, missing, or loose parts such as screws,
nuts, bolts, caps, etc. Tighten securely all fasteners
and caps and do not operate this product until all
missing or damaged parts are replaced. Please call
1-800-860-4050 or contact an authorized service
center for assistance.
Avoid using solvents when cleaning plastic parts.
Most plastics are susceptible to damage from
various types of commercial solvents and may be
damaged by their use. Use clean cloths to remove
dirt, dust, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating
oils, etc., come in contact with plastic
parts. Chemicals can damage, weaken or
destroy plastic which may result in serious
personal injury.
Only the parts shown on the parts list are intended
to be repaired or replaced by the customer. All
other parts should be replaced at an Authorized
Service Center.
BATTERY PACK REMOVAL AND
PREPARATION FOR RECYCLING
WARNING:
Upon removal, cover the battery pack’s ter-
minals with heavy-duty adhesive tape. Do not
attempt to destroy or disassemble battery pack
or remove any of its components. Lithium-ion
and nickel-cadmium batteries must be recycled
or disposed of properly. Also, never touch both
terminals with metal objects and/or body parts
as short circuit may result. Keep away from
children. Failure to comply with these warnings
could result in fire and/or serious injury.
REPLACING BAR AND CHAIN
See Figures 25 - 31.
WARNING:
Remove the battery pack from the chain saw and
make sure the chain has stopped before you do
any work on the saw. Failure to do so may result
in accidental starting and possible serious injury.
WARNING:
The safety instructions in this section are to
protect the user from serious personal injury.
CAUTION:
Always wear gloves when handling the bar and
chain; these components are sharp and may
contain burrs.
WARNING:
Never touch or adjust the chain while the motor
is running. The saw chain is very sharp; always
wear protective gloves when performing main-
tenance to the chain to avoid possible serious
lacerations.