Manual

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. 39)
Fig. 39
GENERAL INSTRUCTIONS FOR FILING CUTTERS
File (64) cutter on one side of the chain from the inside out.
File on forward stroke only. (Fig. 40)
Fig. 40
5) Keep all cutters the same length. (Fig. 41)
I _ I__ I
Fig. 41
6) File enough to remove any damage to cutting edges (side plate
(65) and top plate (66)) of cutter. (Fig. 42)
65 66
Fig. 42
SHARPENING ANGLES FOR SHARPENING SAW CHAIN
1. Part Number 91VG
2. Pitch 3/8"
3. Deth Gauge Settig 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.
English
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.
Weekly maintenance
Check the starter, especially cord.
Clean the exterior of the spark plug.
Remove the spark plug and check the electrode gap. Adjust it
to 0.024" (0.6mm) or change the spark plug.
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.
Quarterly maintenance
Clean the cooling fins on the cylinder.
Clean the fan and the space around it.
Clean the muffler of carbon,
CAUTION
Cleaning of cylinder fins, fan and muffler shall be done by a
HITACHI Authorized Service Center.
MODEL NO. BAR NO. LENGTH- CHAIN NO.
OREGON TYPE
CS33ET/ 120SDEA041 12"-DG 91VG-045X
CS33EA 140SDEA041 14"-DG g1VG-052X
DG-DOUBLE GUARD TM (is registered trademark of BLOUNT
International) ... Reversible reduced kickback-bar.
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