NS2522
GB-15
G
B
WARNING
• When draining fuel, please be careful not to spill it. If
fuel is spilt, wipe off thoroughly. In addition, please be
sure to close the storage container cap tightly.
IMPORTANT
• If fuel is left in the engine for protracted periods, the
inside of the carburetor may become clogged and
cause engine malfunction (faulty starting and insuffi-
cient output).
• During storage, slightly loosen the cap of the chemi-
cal fluid tank. If screwed too tightly, the gasket may
become distorted.
On completion of all work procedures, when not plan-
ning to use again for a protracted period please carry
out the following pre-storage care, to prevent trouble
caused by time-lapse changes.
11. Storage
1. Clean the chemical fluid tank and nozzle (see page
11).
2. Remove dirt from the sprayer, inspect it for any dam-
age or looseness, and, if any abnormality is found,
correct it thoroughly in preparation for the next time
you use the unit.
3. Drain the fuel tank.
4. Start the engine, and leave it in idling condition until
all the fuel inside the carburetor is spent and the en-
gine comes to a natural stop.
5. Remove the spark plug and put a few drops (1 to 2
cc) of 2-cycle oil inside the engine. After pulling the
starter rope 2 or 3 times, return the spark plugs to
their original position and stop in compressed posi-
tion.
6. After oiling the throttle lever and other metal parts with
anti-corrosive oil, cover the sprayer and store indoors
in a low-humidity location.
10. Maintenance
on the part of the brushcutter.
(1) Intake air cooling vent
12. Troubleshooting guide
Case 1. Starting failure
CHECK
PROBABLE CAUSES
ACTION
fuel tank
→
incorrect fuel
→
drain it and use correct fuel
fuel filter
→
fuel filter is clogged
→
clean
carburetor adjustment screw
→
out of normal range
→
adjust to normal range
sparking (no spark)
→
spark plug is fouled/wet
→
clean/dry
→
plug gap is incorrect
→
correct (GAP: 0.6 to 0.7 mm)
spark plug
→
disconnected
→
retighten
Case 2. Engine starts but does not keep running/hard re-starting
CHECK
PROBABLE CAUSES
ACTION
fuel tank
→
incorrect fuel or staled fuel
→
drain it and use correct fuel
carburetor adjustment screw
→
out of normal range
→
adjust to normal range
muffler, cylinder (exhaust port)
→
carbon is built-up
→
consult with the repair specialty store
air cleaner
→
clogged with dust
→
wash
cylinder fin, fan cover
→
clogged with dust
→
consult with the repair specialty store
When your unit seems to need further service, please consult with our ZENOAH
®
service shop in your area.
