17
16
Sprocket Tip Lubrication
The Lube Gun (optional) is recommended for applying
grease to the guide bar sprocket tip. The Lube Gun is
equipped with a needle nose tip which is necessary for
the efficient application of grease to the sprocket tip.
The sprocket tip on
your new saw has
been pre-lubricated at the factory. Failure to
lubricate the guide bar sprocket tip as
explained below will result in poor
performance and seizure, voiding the
manufacturer’s warranty.
Lubrication of the sprocket tip is
recommended after each saw use. Always
thoroughly clean guide bar sprocket tip
before lubrication.
CAUTION:
Fig. 28
To lubricate the sprocket tip:
1. Unplug the chain saw from the power source.
NOTE: It is not necessary to remove the saw chain to
lubricate the guide bar sprocket tip. Lubrication
can be done on the job.
2. Clean the guide bar sprocket tip.
3. Using the Lube Gun (optional), insert tip of lube gun
into the lubrication hole and inject grease until it
appears at outside edge of sprocket tip (Fig. 28).
4. Make sure that the Chain Brake® is deactivated.
Rotate saw chain by hand. Repeat lubrication
procedure until the entire sprocket tip has been
greased.
GUIDE BAR MAINTENANCE
Frequent lubrication of the guide bar is required. Proper
maintenance of the guide bar, as explained in this
section, is essential to keep your saw in good working
condition.
MAINTENANCE AND REPAIR INSTRUCTIONS
Ensure that the
power cord is
disconnected before performing any
maintenance on your saw.
WARNING:
Always use
protective gloves
when handling the saw chain.
WARNING:
Maintenance Procedures
Most guide bar problems can be prevented merely by
keeping the chain saw well maintained. Incorrect filing
and non-uniform cutter and depth gauge settings cause
most guide bar problems, primarily resulting in uneven
bar wear. As the bar wears unevenly, the rails widen,
which may cause chain clatter and difficulty in making
straight cuts.
Insufficient guide bar lubrication and operating the saw
with chain that is too tight will contribute to rapid bar wear.
To help minimize bar wear, the following guide bar
maintenance procedures are recommended:
BAR WEAR - Turn guide bar frequently at regular
intervals (for example, after 5 hours of use), to ensure
even wear on top and bottom of bar.
BAR GROOVES - Bar grooves (or rails which support and
carry the chain) should be cleaned if saw has been used
heavily or if saw chain appears dirty. Rails should always
be cleaned every time saw chain is removed.
OIL PASSAGES - Oil passages on the bar should be
cleaned to ensure proper lubrication of the bar and chain
during operation. This can be done using a soft wire
small enough to insert into the oil discharge hole.
NOTE: The condition of the oil passages can be easily
checked. If the passages are clear, the chain will
automatically give off a spray of oil within
seconds of starting the saw. Your saw is
equipped with an automatic oiler system.
Cleaning Bar Rails
1. Remove sprocket cover, bar and chain. Refer to the
Install the Guide Bar/Saw Chain section.
2. Using a screwdriver, putty knife, wire brush or other
similar instrument, clear residue from the rails on the
guide bar. This will keep the oil passages open to
provide proper lubrication to the bar and chain (Fig. 29).
3. Reinstall the bar, chain, sprocket cover and bar bolt
knob. See Section Install the Guide Bar / Saw Chain
for more information.
Fig. 29
MAINTENANCE AND REPAIR INSTRUCTIONS
If the chain and
motor fail to stop
when the Chain Brake® is engaged, take
the saw to the nearest Authorized Service
Center. Do not use the saw if the Chain
Brake® is not in proper working order.
WARNING:
CHAIN BRAKE® TEST
Before cutting with your saw, the Chain Brake® should
be tested as follows:
A. Make sure the Chain Brake® is disengaged (Fig. 26).
B. Place the saw on a firm, flat, dry surface that is clear
of any debris. Do not let the saw come in contact
with any objects.
C. Plug the unit into the power source.
D. Grasp the front handle (not the Chain Brake®/Hand
Guard Lever) with your left hand. Thumb and fingers
should encircle the handle.
E. Grasp the rear handle with your right hand. Thumb
and fingers should encircle the handle.
F. Depress the LOCK/OFF button with your right thumb.
Squeeze the trigger with your index finger (Fig. 7).
G. While the motor is running, activate the Chain
Brake® by rolling your left hand forward against the
lever.
H. Chain and motor should stop abruptly.
A cord that is hot to
the touch is
overloaded.
CAUTION:
Your double
insulated appliance
has no serviceable parts inside. Do not
attempt to repair it yourself. For service
information, dial 1-800-668-1238.
WARNING:
Do not operate your
chain saw in a wet or
damp environment. Do not expose the saw to
rain, snow or sleet. Moisture will cause short
circuits. Replace or repair any damaged or
frayed extension cords before using your saw.
Keep the cord away from the cutting area and
position the cord so that it will not be caught
on branches or other objects during cutting.
WARNING:
EXTENSION CORDS
When using an electric chain saw, plug it into the
extension cord only when you are ready to cut wood.
Connect the extension cord to a 110/120 voltage outlet.
Refer to the Electrical Safety Warnings section.
DOUBLE INSULATION
WHEN SERVICING, USE ONLY IDENTICAL
REPLACEMENT PARTS.
Information
Do not use if the cord or plug is damaged. Your
appliance is double insulated to help protect against
electric shock. Double insulation construction consists of
2 separate “layers” of electrical insulation.
Appliances built with this insulation system are not
intended to be grounded. As a result, the extension cord
used with your appliance can be plugged into any
conventional 120 volt electrical outlet.
Normal safety precautions must be observed when
operating an electrical appliance. The double insulation
system is only for added protection against injury resulting
from a possible internal electrical insulation failure.
In this double insulated appliance, 2 systems of insulation,
instead of grounding, are provided. No grounding means
is provided on a double insulated appliance, nor should a
means for grounding be added to the appliance. No
serviceable parts are inside. A double insulated appliance
is marked with the words, “DOUBLE INSULATION” or
“DOUBLE INSULATED.” The symbol (square within a
square) may also be marked on the appliance.
Maintenance
1. Place switch in OFF position and unplug the power
supply before the appliance is serviced, cleaned, or
maintenance is performed.
2. Keep the air intake clean and air vents free of debris
to avoid overheating the motor.
3. Clean with a damp sponge and mild soap. Do not
squirt with a water hose or douse with water or other
liquids.
4. Inspect the saw chain for proper tension before each
use and frequently during cutting. Sharpen as required.
5. Clean the guide bar and bar pad to ensure free path
for oil.
6. No motor lubrication is necessary. The motor is
equipped with lifetime lubricated bearings.
7. If the saw does not operate, turn switch to OFF
position and disconnect the extension cord, first from
the power supply, then from the saw. Check the
power supply for blown fuses or tripped circuit
breakers. If it still does not operate, contact a
Product Service Department. Call 1-800-520-520 for
more information.
Do not attempt to repair it yourself. No serviceable
parts are inside.
