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English
Chain oil fi lter (Fig. 37)
Remove the oil fi lter and thoroughly wash it in solvent.
Cleaning the cylinder fi ns (Fig. 38)
When wood chips are caught between cylinder fi ns (44), the engine
may overheat, resulting in lower output. To avoid this, always keep
cylinder fi ns and fan case clean.
44
Icing protection system (Fig. 39, 40)
This system is to protect carburetor from icing when the unit is
operated in winter time.
1.
When you need icing system work, remove air fi lter cover (41).
Pull out the shutter (45) from inside the air fi lter cover and
reinstall it in winter time position by turning half-way. (Fig. 39)
This will allow heated air to fl ow from cylinder side to carburetor
cabin through the opening (46).
NOTE
When winter time has been over and carburetor will not suff er from
icing, make sure that the shutter is reinstalled in ordinary position
(Fig. 40).
45
45
12
Fig. 37
Fig. 38
41
46
Fig. 39
41
Fig. 40
For long-term storage
Drain all fuel from the fuel tank. Start and let engine run until it stops.
Repair any damage which has resulted from use. Clean the unit with
a clean rag, or the use of high pressure air hose. Put a few drops of
two-cycle engine oil into the cylinder through the spark plug hole,
and spin the engine over several times to distribute oil.
Cover the unit and store it in a dry area.
CHAIN SHARPENING
Parts of a cutter (Fig. 41, 42)
48
47
49
50
51
52
56
WARNING
○ Gloves should be used when sharpening chain.
○ Be sure to round off the front edge to reduce the chance of
kickback or tie-strap breakage.
47. Top plate
48. Working corner
49. Side plate
50. Gullet
51. Heel
52. Chassis
53 Rivet hole
54. Toe
55. Depth gauge
56. Correct angle on top plate (degree of angle depends on chain
type)
57. Slightly protruding "hook" or point (curve on non-chisel chain)
58. Top of depth gauge at correct height below top plate
59. Front of depth gauge rounded off
LOWERING DEPTH GAUGES WITH A FILE
1) If you sharpen your cutters with a fi le holder, check and lower the
depth.
2) Check depth gauges every third sharpening.
3) Place depth gauge tool on cutter. If depth gauge projects, fi le
it level with the top of the tool. Always fi le from the inside of the
chain toward an outside cutter. (Fig. 43)
55
54
53
Fig. 41
57
58
59
Fig. 42
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