GB-17
BK3420FL-EZ
G
B
9. Maintenance
WARNING
• Be sure to stop the engine when carrying out inspection and maintenance.
• Do not modify the machine or disassemble the engine.
• Use ZENOAH’s genuine parts or designated parts when replacing parts.
• If you cannot inspect or maintain the machine yourself, contact the shop where you bought it.
1 Blade
2 Debris guard
3 Grip
4 Throttle lever
5 Throttle wire
6 Fuel tank
7 Shoulder belt
8 Flexible shaft
9 Gear case
10 Parts to be tightened
•
The mounting bolt has become loose.
•
Tighten
• Broken, cracked, chipped, or bent.
• Replace
•
The blade edges have worn out.
• Re-sharpen or replace
• Mounted has become loose.
•
Tighten
• Broken.
• Replace
• Oil has stuck to the grip.
• Wipe of
f
• Does not move smoothly
.
• Repair or replace
• The play is too large or too small.
• Repair
• The throttle wire does not move smoothly
.
• Repair or replace
• Fuel leaks out.
• Repair or replace
•
The fuel pipe has been damaged.
• Replace
• Broken or cracked.
• Repair or replace
•
The connecting part has become loose.
• Repair or replace
• Cut off, cracked, discolored, or deformed.
• Replace
•
The shaft has become loose.
• Repair or replace
• Loose or slipped of
f.
•
Tighten or repair
�
INSPECTION BEFORE AND AFTER CUTTING
Inspect the following items before and after cutting.
INSPECTION ITEMS
MEASURES
25 hours 50 hours 100 hours
Removal of dust from cylinder fin
O
O
O
Cleaning of the air cleaner element
O
O
O
Checking, cleaning and adjustment of the spark plug
O
O
O
Gap 0.6 to 0.7 mm
Engine
Cleaning of the fuel tank
O
O
Additional tightening of the bolt for mounting the cylinder
O
Additional tightening of the parts for the engine
O
Removal of the carbon from the muffler
O
Supply of grease for the gear case
O
O
O
Main body Removal of the contamination of the clutch drum
O
Supply of grease for the flexible shaft
O
O
O
�
REGULAR INSPECTION
Carry out inspection for each period of use as specified below.
INSPECTION AND MAINTENANCE ITEM
PERIOD OF USE
REMARKS
01-BK3420FL-EZ_GB_207＿三.indd 17
12.9.21 1:24:16 PM
