Hitachi CS 33EDT Bedienungsanleitung Seite 14

English
41. Top plate
42. Working corner
43. Side plate
44. Gullet
45. Heel
46. Chassis
47. Rivet hole
48. Toe
49. Depth gauge
50. Correct angle on top plate (degree of angle depends on chain
type)
51. Slightly protruding "hook" or point (curve on non-chisel chain)
52. Top of depth gauge at correct height below top plate
53. 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. 41)
4) Round off front corner to maintain original shape of depth gauge
after using depth gauge tool. Always follow the recommended
depth gauge setting found in the maintenance or operator
manual for your saw. (Fig. 42)
GENERAL INSTRUCTIONS FOR FILING CUTTERS
File (54) cutter on one side of the chain from the inside out. File on
forward stroke only. (Fig. 43)
5) Keep all cutters the same length. (Fig. 44)
6) File enough to remove any damage to cutting edges (side plate
(55) and top plate (56)) of cutter. (Fig. 45)
SHARPENING ANGLES FOR SHARPENING SAW CHAIN
1. Part Number
2. Pitch
3. Depth Gauge Setting
4. Side Plate Filing Angle
5. Top Plate Angle
6. File Guide Angle
Maintenance schedule
Below you will fi nd some general maintenance instructions. For
further information please contact HITACHI dealer.
Inspection and service before use
○ Check that no peel-off , degradation, or damage is observed in
the Anti-vibration rubber members, and no loosening or damage
is observed in their fi xtures.
○ Check that no damage is observed in the Anti-vibration springs,
and no loosening or damage is observed in their fi xtures.
○ Check that no deformation or damage is observed in the front
and rear handles.
○ Check that the fi xtures for front and rear handles are suffi ciently
tightened and free of damage.
○ Check that bolts, nuts, etc. used for each part are suffi ciently
tightened and free of damage.
Daily maintenance
○ Clean the exterior of the unit.
○ Clean the chain oil fi lter port.
○ Clean the groove and oil fi lter port in the guide bar.
○ Clean the side case of saw dust.
○ Check that the saw chain is sharp.
○ Check that the bar nuts are suffi ciently tightened.
○ Make sure that the chain transport guard is undamaged and that
it can be securely fi tted.
14
○ Check that nuts and screws are suffi ciently tightened.
Especially inspect the bolt of muffl er and ensure that they are
properly tightened before starting engine. Should any of the
bolts be loose, retighten them immediately. Failure to do so
could result in serious hazard.
○ Check the tip of the bar. Please exchange it for the new one
when it is worn out.
○ Check the band of chain brake. Please exchange it for the new
one when it is worn out.
Weekly maintenance
○ Check the recoil starter, especially cord and return spring.
○ Clean the exterior of the spark plug.
○ Remove the spark plug and check the electrode gap. Adjust it to
0.6 mm or change the spark plug.
○ Check that the air intake at the recoil starter is not clogged.
○ Clean the air fi lter.
Monthly maintenance
○ Rinse the fuel tank with gasoline, and clean fuel fi lter.
○ Clean chain oil fi lter.
○ Clean the exterior of the carburetor and the space around it.
Quarterly maintenance
○ Clean the cooling fi ns on the cylinder.
○ Clean the fan and the space around it.
○ Clean the muffl er of carbon.
CAUTION
Cleaning of cylinder fi ns, fan and muffl er shall be done by a
HITACHI Authorized Service Center.
NOTE
When ordering the parts to your nearest dealer, please use the
item numbers showing on the parts breakdown section in this
instruction.
91VG
3/8"
0.025"
MODEL NO. PO12-50CR
E&S PO14-50CR
80°
30°
90°
LENGTH- NOSE-
BAR NO.
TYPE TYPE
12" SPROCKET
14" SPROCKET
CHAIN
NO.
(OREGON)
91VG045
91VG052