Craftsman 316351930 user manual download

For Devices:Craftsman 316351930   and 2 more
Languages:English
Pages:24
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Page 6 of 24
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.
Finishing
Cut
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
Sample