Zenoah BK3420FL-EZ - Manual (Page 19)

19
7. Maintenance
• 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.
WARNING
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 off
• 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 off. • 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