Intended Use - Craftsman 172.452470 Operator's Manual

INTENDED USE
The chain saw is intended for wood: sawing of trees, tree trunks, branches, wooden beams,
planks, etc. Cuts can be sawed with or across the grain. This product is not suitable
for sawing mineral materials, plastics or non-wood building materials.
ASSEMBLY
NOTE: This Chain Saw comes futly assembled, includingthe Chain/Chain BarAssembly. i
See below for Chain/Chain Bar Replacement.
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[Z_ WARNING: Do not connect the chain saw to extension cord and power source ]
before it is completely assembled. Always use gloves when handling the chain.
CHAIN AND CHAIN BAR ASSEMBLY/REPLACEMENT
(See Figs. 4a, 4b, 4c, 4d and Pgs 14-15 for part reference)
1. Place the chain saw on any suitable flat surface.
2. (See Fig. 4a) Slide the chain (8) in the slot around the guide bar (7). Ensure chain is in
correct running direction by comparing with chain symbol (15). Ensure the chain tensioning
catch (16) is facing outwards.
3. (See Fig. 4b) Fit the chain onto the drive sprocket (13) and guide the guide bar (7), so that
the fastening bolt (18) and the two guide fins (14) fit into the keyway of the guide bar (7).
TENSIONING CHAHN/LOCKING KNOB
Always check the chain tension before use,
after the first cuts and regularly during use.
Upon initial operation, new chains can lengthen
considerably.
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Z_ WARNING:
Unplug chain saw from
power source before adjusting saw chain
tension.
z_ WARNING: Cutting edges on chain
are sharp. Use protective gloves when
handling chain.
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Fig. 4d
z_ WARNING: ALWAYS Maintain proper chain tension. A loose chain will
increase the risk of kickback. A loose chain may jump out of guide bar groove.
This may injure operator and damage chain. A loose chain will cause chain, chain
bar, and sprocket to wear rapidly.The chain life of the saw chain mainly depends
upon sufficient lubrication and correct tensioning. Avoid tensioning the chain if it
is hot, as this will cause the chain to become over tensioned when it cools down.
Fig. 4a
816 7 __--x) _
4. Check to make sure all parts are seated
properly and hold chain and guide bar in
a level position. (See Fig. 4c)
5. Fit cover plate, ensure that the chain
catcher (17) fits into the groove of the
cover plate (20). (See Figs. 2 & 3, pg.15)
6. Press the cover plate firmly onto the
machine and screw on the cover plate (20)
with the locking knob (11). (See Fig. 2, pg.15)
NOTE: The chain is not yet tensioned.
Tensioning the chain applies as described
under "Tensioning chain".
16
Fig. 4b
Fig. 4c
_-o ,
20
Cover Plate
1. Place the chain saw on any suitable flat surface.
2. Turn the chain tensioning adjustment knob (12)
clockwise (See Fig. 4d), the correct chain tension
will be reached automatically. The ratchet
mechanism prevents the chain tension from
loosening.
3. The correct chain tension is reached when the chain
can be raised approx. 3-6 mm (1/8 to 1/4-in.) from
the chain bar in the centre.This should be done by
using one hand to raise the chain against the
weight of the machine. (See Fig. 5)
4. When the chain looses, first loosen the locking
knob (11 ) appropriately and then loosen the chain
tensioning adjustment knob absolutely.
Then, turn the chain tensioning adjustment knob
clockwise to reach an appropriate chain tension.
Finally, fully tighten the locking knob.
17
Fig. 5
approx.
3-6 mm
(1/8 to 1/4-in.)