Zenoah SRTZ2500 ユーザーズマニュアル

20 

■ BLADES (MA1)
• When refilling the tank or resting, it is often a

good idea to use the time to oil the cutting
blades.

• If a gap exists between the upper and lower

blades, follow the procedure below to adjust
them so that they fit more closely together. 

1. Loosen lock nut (A) as shown in the diagram.
2. Tighten screw (B) fully, and then turn one-third

to one-half of a rotation backward.

3. While holding onto the screw to keep it in

position, tighten the lock nut.

4. Check to make sure that the flat washer (C) is

loose enough so that it may be turned by
pressing on it with a finger. 

Screwing in the screw too tightly may make it
impossible for the blades to move. Conversely, not
screwing in the screw tightly enough may make the
blades of the trimmer feel dull and cause leaves
and branches to become caught in the blades of
the trimmer.

every every every

25

50

100

system/compornent

procedure

before hours hours hours

note

use

after

after

after

fuel leaks, fuel spillage

wipe out

✔

fuel tank, air filter, fuel filter

inspect/clean

✔

✔

replace, if necessary

see 

■ADJUSTING

replace carburetor

idle adjusting screw

✔

IDLING SPEED (p.18)

if necessary

clean and readjust 

GAP: .025in(0.6~0.7mm)

spark plug

✔

plug gap

replace, if necessary

cylinder fins, intake air cooling vent clean

✔

muffler, spark arrester, cylinder exhaust port clean

✔

throttle lever, ignition switch

check operation

✔

replace if 

cutting parts

✔

something's wrong

gear case

grease

✔

screws/nuts/bolts

tighten/replace

✔

✔

not adjusting screws

ENGINE

SHAFT

■ MAINTENANCE CHART