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Fig. 43
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. 44)
Fig. 44
GENERAL INSTRUCTIONS FOR FILING CUTTERS
File (60) cutter on one side of the chain from the inside out. File on
forward stroke only. (Fig. 45)
60
60
60
Fig. 45
5) Keep all cutters the same length. (Fig. 46)
61
Fig. 46
6) File enough to remove any damage to cutting edges (side plate
(62) and top plate (63)) of cutter. (Fig. 47)
62
63
Fig. 47
NOTE
Do not fi le or alter the tops of bumper drive links (61). (Fig. 46)
7SHARPENING ANGLES FOR SHARPENING SAW CHAIN
1. Part Number 95VPX/20BPX
2. Pitch 0.325”
3. Depth Gauge Setting 0.025"
85°
4. Side Plate Filing Angle 85°
5. Top Plate Angle 30°
100 °
6. File Guide Angle 100°
Maintenance schedule
Below you will fi nd some general maintenance instructions. For
further information please contact HITACHI dealer.
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.
○ 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 guide 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.
○ Clean the air fi lter.
Weekly maintenance
○ Check the recoil starter, especially cord.
○ 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.
○ Clean the cooling fi ns on the cylinder and check that the air
intake at the recoil starter is not clogged.
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.
○ Clean the fan and the space around it.
NOTE
When ordering the parts to your nearest dealer, please use the
item numbers showing on the parts breakdown section in this
instruction.
BAR NO. LENGTH-TYPE CHAIN NO.
MODEL NO.
OREGON
160 MLBK 041
180 MLBK 041
200 PXBK 041
16”
18”
20”
95VPX-66
95VPX-72
20BPX-78