Craftsman 316380900 user manual download (Page 22 of 64)

Languages: English
Pages:64
You can view the full version and download it in PDF format.
Page 22 of 64
REMOVING
AND
iNSTALLiNG
THE GUIDE
BAR
AND SAW
CHAIN
_
WARNING:
The saw chain is very sharp. Always wear
heavy-duty
protective
gloves when handling
or performing
J
maintenance
on the saw chain.
The guide
bar and saw chain need to be removed
when
certain
maintenance
procedures
are performed,
such as when
rotating
the
guide bar. When replacing
old guide bars and saw chains
with new
parts,
always use the manufacturer's
specified
replacement
parts.
Refer to
Replacing
the Guide Bar and Saw Chain.
Removing
the
Guide
Bar and Saw Chain
1.
Make sure the chain brake is disengaged.
Refer to
Testing the
Chain Brake
in the
Assembly
section.
2.
Use the multi-purpose
tool or a 1/2 inch (13 mm) wrench to
loosen the bar-retaining
nuts (Fig. 29).
3.
Remove the bar-retaining
nuts and bar cover (Fig. 29).
4.
Loosen the saw chain. Refer to
Adjusting
the Chain Tension.
5.
Remove the guide bar and saw chain from the guide bar bolts
(Fig. 31).
6.
Remove the saw chain from the guide bar.
Installing
the
Guide
Bar and Saw Chain
1.
Set the saw chain on a clean, flat surface
and straighten
out any
kinks.
2.
Fit the saw chain into the guide
bar groove (Fig. 30). Make sure
the cutters
point in the correct direction of rotation (Fig. 30). Keep a
loop of saw chain at the back end of the guide bar (Fig. 30).
3.
Hold the saw chain and guide bar together
in position over the
unit. Loop the saw chain around the drive sprocket
and install the
guide bar onto the guide bar bolts (Fig. 31). Make sure the guide
bar is flush against the mounting
surface. Make sure the flats on
the saw chain are in the grooves on the drive sprocket.
4.
Install the bar cover. Make sure the chain-tensioning
pin is in the
pin hole on the guide
bar (Fig. 32).
5.
Place the bar-retaining
nuts onto the guide bar bolts and tighten
them hand tight.
6.
Make sure the saw chain is still in the guide bar groove,
then
tighten
the saw chain. Refer to
Adjusting
the Chain Tension.
7.
Hold the guide bar tip up and securely tighten the bar-retaining nuts.
Bar
Cover
Fig.
29
Bar=Retaining
Nuts
Guide
Bar
Groove
Fig. 30
Direction
of
Rotation
Drive
Sprocket
Guide
Bar Bolts
Fig.
31
Guide
Bar
Saw
Chain
MAiNTAiNiNG
THE SAW
CHAIN
For safe, efficient
operation,
the saw chain must be maintained
properly.
The saw chain will wear with
use, causing
the chain to stretch.
This
is normal. When
it is no longer possible
to obtain a correct
chain
tension
adjustment,
the saw chain will need to be repaired by a
Sears or other qualified
service dealer or replaced.
Refer to
Replacing
the Guide Bar and Saw Chain.
Always keep the saw chain sharp. During operation,
look for the
following
indicators
of a dull saw chain:
• Wood chips
are small and powdery.
The saw chain must be forced through
the wood.
The saw chain cuts to one side.
If any of these conditions
exist, sharpen
or replace the saw chain.
Refer to
Sharpening
the Saw Chain
or
Replacing
the Guide Bar and
Saw Chain.
NOTE: If you do not fully understand
the sharpening
procedure
after
reading the instructions,
have the saw chain sharpened
by a
Sears or other qualified
service dealer or replace the saw chain.
Pin Hole
Chain=Tensioning
Pin
22
Fig. 32
Sample
This manual is suitable for devices