Manual

English
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Fig. 43
SHARPENING ANGLES FOR SHARPENING SAW
CHAIN
1. Part Number 91VG
2. Pitch 3/8"
3. Depth Gauge Setting 0.025"
4. Side Plate Filing Angle 80 °
5. Top Plate Angle 30°
6. File Guide Angle 90 °
Maintenance schedule
Below you will find some general maintenance
instructions. For further information please contact
HITACHI dealer.
Daily maintenance
© Clean the exterior of the unit.
© Clean the chain oil filter port.
© Clean the groove and oil filter 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 sufficiently tightened.
© Make sure that the chain transport guard is
undamaged and that it can be securely fitted.
© Check that nuts and screws are sufficiently
tightened.
Especially inspect the bolt of muffler 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 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 0.024" (0.6 mm) or change the
spark plug.
© Clean the cooling fins on the cylinder and check
that the air intake at the starter is not clogged.
© Clean the air filter.
Monthly maintenance
© Rinse the fuel tank with gasoline, and clean fuel
filter.
@ Clean chain oil filter.
@ Clean the exterior of the carburetor and the space
around it.
@ Clean the fan and the space around it.
@ Clean the muffler of carbon.
NOTE
When ordering the parts to your nearest dealer,
please use the item numbers showing on the
parts breakdown section in this instruction.
MODEL
LENGTH-
NO. BAR NO. CHAIN NO.
TYPE
OREGON
CS33EB 26779 12"(300 mm) 91VG-045X
26780 14"(350 mm) 91VG-052X
160NDEA041 16"(400 mm) 91VG-057X
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