Hitachi CS25EPA Owner's Manual page 13

Oiler port (Fig. 4-1)
Clean the chain oiler port (1) whenever
possible.
Guide bar (Fig. 4-2)
Before using the machine, clean the groove
and oiler port (1) in the bar with the special
gauge offered as an optional accessory.
Side case (Fig. 4-3)
Always keep the side case and drive area clean
of saw dust and debris.
Angle transmission (Fig.4-4)
Check angle transmission or angle gear for
grease level about every 50 hours of operation
by removing the grease filler plug on the side of
angle transmission.
If no grease can be seen on the flanks of the
gears, fill the transmission with quality lithium
based multipurpose grease up to 3/4.
Do not completely fill the transmission
Maintenance schedule
Below you will find some general maintenance
instructions. For further information please
contact HITACHI dealer.
GB-12
Fig.4-1
Fig.4-4
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 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 (.024 ") 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.
Fig.4-2
Fig.5-1
Spark arrestor
If your unit comes with spark arrestor screen
and your local regulations require use of spark
arrestor for prevention against a possible fire,
please attach it to the muffler by removing
muffler protector and other related parts.
[The spark arrestor meets the regulation of SAE
J335-SEP90 and CSA CAN3-Z62. 1-M77]
CHAIN SHARPENING Parts of a cutter.
(Fig. 5-1, 2)
WARNING!
Gloves should be used when sharpening
chain.
1. Top plate
2. Working corner
3. Side plate
4. Gullet
5. Heel
6. Chassis
7. Rivet hole
8. Toe
9. Depth gauge
10. Correct angle on top plate (degree of angle
depends on chain type)
11. Slightly protruding "hook" or point (curve on
non-chisel chain)
12. Top of depth gauge at correct height below
top plate
13, Front of depth gauge rounded off
Fig.4-3
Fig.5-2