•
SAW CHAIN / BAR LUBRICATION
Adequate lubrication of the saw chain is essential at all
times to minimize friction with the guide bar.
Never starve the bar and chain of oil. Running the saw
with too little oil will decrease cutting efficiency, shorten
saw chain life, cause rapid dulling of chain, and cause
excessive wear of bar from overheating. Too little oil is
evidenced by smoke, bar discoloration or pitch build-up.
NOTE: Saw chain stretches during use, particularly
when it is new, and it will occasionally be necessary to
adjust and tighten it. New chain will require adjustment
after about 5 minutes of operation.
•
AUTOMATIC OILER
Your chain saw is equipped with an automatic gear
driven oiler system. The oiler automatically delivers the
proper amount of oil to the bar and chain. As the engine
speed increases, so does the oil flow to the bar pad.
There is no flow adjustment. The oil reservoir will run out
at approximately the same time as the fuel supply runs
out.
•
FELLING
Felling is the term for cutting down a tree. Small trees up
to 6-7 inches (15-18cm) in diameter are usually cut in a
single cut. Larger trees require notch cuts. Notch cuts
determine the direction the tree will fall.
FELLING A TREE:
WARNING: Never force the job and never force the
chainsaw.
Make a number of smaller cuts if necessary rather than
one large forced cut.
NOTE:
Direction of fall (B) is con-
trolled by the notching cut. Before any cuts are made,
consider the location of larger branches and natural lean
of the tree to determine the way the tree will fall.
GENERAL GUIDELINES FOR FELLING TREES:
Normally felling consists of 2 main cutting operations,
notching (C) and making the felling cut (D).
Start making the upper notch cut (C) on the side of the
tree facing the felling direction (E). Be sure you don t
make the lower cut too deep into the trunk.
The notch (C) should be deep enough to create a hinge
(F) of sufficient width and strength. The notch should be
wide enough to direct the fall of the tree for as long as
possible.
Never saw completely through the trunk. Always leave a
hinge. The hinge guides the tree. If the trunk is
completely cut through, control over the felling direction
is lost.
Insert a wedge or felling lever in the cut well before the
tree becomes unstable and starts to move. This will
prevent the guidebar from binding in the felling cut if you
have misjudged the falling direction. Make sure no
bystanders have entered the range of the falling tree
before you push it over.
FELLING CUT:
1. Use wooden or plastic wedges (A) to prevent binding
the bar or chain (B) in the cut. Wedges also control
felling (Fig. 14A).
2. When diameter of wood being cut is greater than the
bar length, make 2 cuts as shown (Fig. 14B).
FUEL AND LUBRICATION
8
9
GB
GB
WARNING: As the felling cut gets close to
the hinge, the tree should begin to fall.
When tree begins to fall, remove saw from
cut, stop engine, put chain saw down, and
leave area along retreat path (Fig. 12).
WARNING: Before making the final cut,
always recheck the area for bystanders,
animals or obstacles.
WARNING: Never walk in front of a tree that
has been notched.
Make the felling cut (D) from the other side of
the tree and 1.5 - 2.0 inches (3-5 cm) above
the edge of the notch (C) (Fig. 13)
WARNING: Do not cut down a tree during high or
changing winds or if there is a danger to proper-
ty. Consult a tree professional. Do not cut down a
tree if there is a danger of striking utility wires;
notify the utility company before making any cuts.
CAUTION: If felling a tree on sloping ground, the
chain saw operator should keep on the uphill
side of the terrain, as the tree is likely to roll or
slide downhill after it is felled.
WARNING: A retreat path (A) should be planned
and cleared as necessary before cuts are
started. The retreat path should extend back and
diagonally to the rear of the expected line of fall,
as illustrated in Fig. 12.
GENERAL CUTTING INSTRUCTIONS
A
B
•
LIMBING
Limbing a tree is the process of removing the branches
from a fallen tree. Do not remove supporting limbs (A)
until after the log is bucked (cut) into lengths (Fig. 15).
Branches under tension should be cut from the bottom
up to avoid binding the chain saw.
•
BUCKING
Bucking is cutting a fallen log into lengths. Make sure
you have a good footing and stand uphill of the log when
cutting on sloping ground. If possible, the log should be
supported so that the end to be cut off is not resting on
the ground. If the log is supported at both ends and you
must cut in the middle, make a downward cut halfway
through the log and then make the undercut. This will
prevent the log from pinching the bar and chain. Be
careful that the chain does not cut into the ground when
bucking as this causes rapid dulling of the chain.
When bucking on a slope, always stand on the uphill
side.
1. Log supported along entire length: Cut from top
(overbuck), being careful to avoid cutting into the
ground (Fig. 16A).
2.
Log supported on 1 end: First, cut from bottom
(underbuck) 1/3 diameter of log to avoid splintering.
Second, cut from above (overbuck) to meet first cut
and avoid pinching (Fig. 16B).
3.
Log supported on both ends: First, overbuck 1/3
diameter of log to avoid splintering. Second,
underbuck to meet first cut and avoid pinching
(Fig. 16C).
NOTE: The best way to hold a log while bucking is to
use a sawhorse. When this is not possible, the log
should be raised and supported by the limb stumps or by
using supporting logs. Be sure the log being cut is
securely supported.
•
BUCKING USING A SAWHORSE
For personal safety and ease of cutting, the correct
position for vertical bucking is essential (Fig. 17).
VERTICAL CUTTING:
A.
Hold the saw firmly with both hands and keep the
saw to the right of your body while cutting.
B.
Keep the left arm as straight as possible.
C.
Keep weight on both feet.
All chain saw service, other than items listed here in your
user manual maintenance instructions, should be
performed professional.
•
PREVENTIVE MAINTENANCE
A good preventive maintenance program of regular
inspection and care will increase life and improve
performance of your chain saw. This maintenance
checklist is a guide for such a program.
Cleaning, adjustment, and parts replacement may be
required, under certain conditions, at more frequent
intervals than those indicated.
•
AIR FILTER
TO CLEAN AIR FILTER:
1.
Remove the top cover (A) by loosening the cover
retaining screws. Cover will lift off.
2.
Lift the air filter (B) out of air-box (C) (Fig. 18).
3.
Clean air filter. Wash filter in clean, warm, soapy
water. Rinse in clear, cool water. Air dry completely.
NOTE: It is advisable to have a supply of spare filters.
4.
Install air filter. Install engine / air filter cover. Make
sure cover fits properly. Tighten the cover retaining
screws securely.
WARNING: Never cut tree limbs while
standing on tree trunk.
Fig. 16A
Fig. 15
Fig. 16C
Fig. 16B
Fig. 17
B
A
C
MAINTENANCE INSTRUCTIONS
Maintenance EACH
HOURS
OF
CHECKLIST
USE
OPERATION
ITEM
ACTION
Screws/Nuts/Bolts
Inspect/Tighten
Air Filter
Clean or Replace
Fuel Filter/Oil Filter
Replace
Spark Plug
Clean/Adjust/Replace
Spark Arrester Screen Inspect
Fuel Hoses
Inspect
✔
10
20
✔
✔
✔
✔
✔
✔
✔
Replace as Required
Chain brake
Inspect
components
Replace as Required
CAUTION: Never operate saw without the air fil-
ter. Dust and dirt will be drawn into engine and
damage it. Keep the air filter clean!
WARNING: Never perform maintenance
when the engine is hot, to avoid any
chance of burning hands or fingers.
A
2
1
1
2
A
B
Fig. 12
Fig. 13
Fig. 14A
Fig. 14B
