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Idiomas disponibles
Idiomas disponibles
PRUNmNG
Pruning
Load
Second Cut
_[_
WARNING:
If the limbs to be pruned are above
chest height, hire a professional to perform the pruning.
_
WARNING:
Use caution when pruning heavy
branches.
Falling branches
can cause serious injury.
Always wear head protection,
plan a safe exit from the
First Cut
path of falling limbs and stay alert.
1/3 Diameter
Pruning is the process of trimming limbs from a live tree (Fig. 28).
Work slowly, while maintaining
a proper grip and stance.
FinishingCut
Do not cut from a ladder; this is extremely dangerous. Leave this
operation for professionals.
Fig.28
Do not cut above chest height, as a saw held higher is difficult to control during kickback.
When pruning trees it is important
not to make the finishing cut next to the main limb or trunk until the limb is cut
further out to reduce the weight. This prevents stripping
the bark from the main member.
1. Underbuck the branch 1/3 through for the first cut.
2. The second cut should overbuck
to drop the branch off.
3. Make the finishing cut smoothly and neatly against the main member so the bark will grow back to seal the wound.
CUTTING
SPRINGPOLES
_L_
ARNING:
Watch for springpoles;
these can
Spdngpole
strike the operator, causing
serious personal injury.
A springpole
is any log, branch, rooted stump, or sapling that is bent
under tension by other wood so that it springs back if the wood
holding it is cut or removed (Fig. 29). On a fallen tree, a rooted stump
has a high potential
of springing
back to the upright position during
the bucking cut to separate the log from the stump.
Fig. 29
WARNING:
Before inspecting,
cleaning or servicing the unit, stop the engine, wait for all moving parts
to stop, allow the unit to cool, disengage
the chain brake and disconnect
the spark plug wire to ensure
that the unit cannot start. Failure to follow these instructions
can result in serious personal injury or
property damage.
MAmNTENANCE
SCHEDULE
Perform these required maintenance
procedures
at the frequency stated in the table. These procedures should also be
a part of any seasonal tune-up.
NOTE:
Some maintenance
procedures
may require special tools or skills. If you are unsure about these procedures,
take your unit to any non-road engine repair establishment,
individual or authorized
service dealer.
NOTE:
Maintenance,
replacement
or repair of the emission control devices and system may be performed by any
non-road engine repair establishment,
individual or authorized service dealer.
NOTE:
Please read the California/EPA
statement that came with the unit for a complete
listing of terms and coverage
for the emissions control devices, such as the spark arrestor, muffler, carburetor, etc.
A good preventive maintenance
program of regular inspection and care will increase the life and improve performance
the unit. This maintenance
checklist is a guide for such a program.
Cleaning, adjusting and part replacement
may be required, under certain conditions,
at more frequent intervals than
those indicated.
CUSTOMER
RESPONSiBiLiTY
MAINTENANCE
CHECKLIST
AFTER EVERY
AFTER EVERY
BEFORE
EACH
AFTER EACH
ACTION
10 HOURS OF
20 HOURS OF
USE
USE
OPERATION
OPERATION
Check for loose screws/nuts/bolts
and
j-
tighten as needed
Clean the air filter (replace when necessary)
Inspect and clean the spark plug (replace
when necessary)
J"
Inspect and clean the spark arrestor screen
j-
and muffler
Check the bar lube reservoir level (refill
j-
frequently)
Inspect fuel hoses*
Inspect the chain brake components*
Clean the unit and inspect decals
J"
Clean the guide bar groove and oil
j-
passages
Clean the cylinder fins
Check for damaged or worn parts
J"
Check the chain tension (adjust as needed)
J"
Check the sharpness of the chain
J"
Lubricate the sprocket tip
J"
Check the fuel mixture
J"
*If maintenance
or replacement
are required, have the unit serviced by an authorized
service dealer.
To avoid possible serious injury, never
WARNING:
touch or adjust the chain while the engine is running.
I The saw chain is very sharp; always wear protective
I
I g oves when perform ng ma ntenance on the chan.
I _
I CAUTION:
A chain tensioned
while warm, may be
too tight upon cooling.
Check the "cold tension"
before next use.
ADJUSTING
THE CHAIN TENSION
The chain must be tensioned whenever the flats on the drive links
hang out of the bar groove (Fig. 30). Check for proper chain tension
before starting the unit and periodically
during operation.
NOTE:
A new chain tends to stretch. Check the chain tension
frequently and tighten as required.
1. Stop the engine, wait for all moving parts to stop, allow the unit to
cool, disconnect the spark plug wire and disengage the chain brake.
2. Slightly loosen the bar-retaining
nuts (Fig. 31).
3. Hold the guide bar tip up and rotate the chain-tensioning
screw
(Fig. 32) clockwise
with a standard screwdriver
to tension the
chain. The desired tension depends on the temperature
of the
chain:
o Cold Chain Tensioning
- A cold chain is correctly tensioned
when there is no sag on the underside of the guide bar and the
chain seats snugly against the guide bar with the drive links in
the bar groove.
Warm Chain Tensioning
- During normal operation, the
temperature
of the chain will increase. The drive links of a
correctly
tensioned warm chain will hang approximately
1/16
inch (1.3 ram) out of the bar groove (Fig. 33).
4. Once adjusted,
lift the tip of the guide bar up to check for proper
tension (Fig. 34). If the chain is still too loose, release the tip of the
guide bar and turn the chain-tensioning
screw 1/2 turn clockwise.
Repeat this process until the desired tension is achieved.
NOTE:
If the chain is too tight, it will not rotate. To loosen the chain,
turn the chain-tensioning
screw 1/4 turn counterclockwise.
Ensure that the chain can be turned by hand without binding
(Fig. 35). Also note that the chain will not rotate if the chain
brake is engaged.
5. Hold the tip of the guide bar up and securely tighten the bar-
retaining nuts.
REMOVlNG/REPLACmNG
THE GUIDE BAR AND CHAIN
Use only a low-kickback
saw chain that has met kickback
performance
per ANSI B175.1 for this saw. This fast-cutting
chain
provides kickback reduction when properly maintained.
NOTE:
When replacing the guide bar and chain, use only
manufacturer
suggested
replacement
parts. The use of any
other parts may create a hazard or cause product damage
and will VOID the warranty.
Removing
the Old Guide Bar and Chain
1. Make sure the engine is off and the spark plug wire is
disconnected.
Disengage the chain brake.
2. Remove the bar-retaining
nuts with the supplied
multi-purpose
tool. Remove the guide bar cover and guide bar plate by pulling
them straight out (Fig. 31).
3. Remove the guide bar and chain from the mounting
surface.
4. Remove the old chain from the guide bar.
installing
the New Guide Bar and Chain
1. Lay out the new saw chain in a loop and straighten any kinks. The
cutters on the top of the guide bar should face toward the guide
bar tip in the direction of chain rotation (Fig. 36). If they face
backward,
turn the loop over.
2. Place the chain drive links into the bar groove as shown (Fig. 37).
NOTE:
Make sure the chain is correctly
installed and the cutters are
facing in the correct direction
(Fig. 36).
3. Position the chain so there is a loop at the back of the guide bar.
4. Hold the chain in position on the guide bar and place the loop
around the drive sprocket.
5. Fit the guide bar flush against the mounting
surface so that the
two guide bar bolts are in the guide bar slot (Fig. 31).
NOTE:
Make sure that the chain-tensioning
pin is in the chain-
tensioning
pin hole (Fig. 38).
6. Replace the guide bar plate so that the bent edges (top and
bottom) are directed away from the chain.
7. Replace the guide bar cover and bar-retaining
nuts. Tighten the
bar-retaining
nuts hand tight.
NOTE:
Do not over-tighten
the bar-retaining
nuts. The guide bar
should still be free to move for chain tension adjustment.
8. Adjust the chain tension. Refer to the Adjusting
the Chain Tension
instructions
above.
ADJUSTING
THE AUTOMATIC
OILER
The oiler automatically
delivers the proper amount of oil to the guide
bar and saw chain. As the engine speed increases, so does the oil
flow. The amount of oil flowing to the guide bar and saw chain may
be changed by turning the adjustment
screw with a small standard
screwdriver.
Turn the screw clockwise
to decrease oil flow or turn the
screw counterclockwise
to increase oil flow (Fig. 39).
Flats
Guide
Bar
Cover
Fig. 30
Guide Bar Bolts
Guide
Bar Slot
Bar-retaining
Nuts
Guide Bar Plate
Fig. 31
Chain-tensioning Screw
Fig. 32
Fig. 33
Fig. 35
__
Chain
Chain Driv_
_
Links
_
Fig. 36
Links
Fig. 37
Pin Hole
Fig. 38
Automatic
Oiler Adjustment
Screw
Fig. 39
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