Makita ER2550LH, Original Instruction Manual

Page: 16 / 184

16
CLEANING OF FUEL FILTER
WARNING: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Monthly (every 50 operating hours)
Suction head in the fuel tank
The fuel filter (1) of the suction head is used to filter the fuel required by the –
carburetor.
A periodical visual inspection of the fuel filter is to be conducted. For that –
purpose open the tank cap, use a wire hook and pull out the suction head
through the tank opening. Filters found to have hardened, been polluted or
clogged up are to be replaced.
Insufficient fuel supply can result in the admissible maximum speed being –
exceeded. It is therefore important to replace the fuel filter at least quarterly to
ensure satisfactory fuel supply to the carburetor.
REPLACEMENT OF FUEL PIPE
CAUTION: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Daily (every 10 operating hours)
Replacement: Annually (every 200 operating hours)
Replace the fuel pipe every year, regardless of operating frequency. Fuel
leakage may lead to fire.
If any leakage is detected during inspection, replace the fuel pipe immediately.
INSPECTION OF BOLTS, NUTS AND SCREWS
Retighten loose bolts, nuts, etc. –
Check for fuel and oil leakage. –
Replace damaged parts with new ones for safety operation. –
CLEANING OF PARTS
Keep the engine always clean. –
Keep the cylinder fins free of dust or dirt. Dust or dirt adhering to the fins will –
cause piston seizure.
0.7 mm - 0.8 mm
(0.028” - 0.032”)
CHECKING THE SPARK PLUG
Only use the supplied universal wrench to remove or to install the spark plug. –
The gap between the two electrodes of the spark plug should be 0.7 - 0.8 mm –
(0.028” - 0.032”). If the gap is too wide or too narrow, adjust it. If the spark
plug is clogged or contaminated, clean it thoroughly or replace it.
CAUTION: Never touch the spark plug connector while the engine is
running (danger of high voltage electric shock).
REPLACEMENT OF GASKETS AND PACKINGS
In reassembling after the engine is dismounted, be sure to replace the gaskets and packings with new ones.
Any maintenance of adjustment work that is not included and described in this manual is only to be performed by Authorized Service Agents.
Fuel pipe
Hose clamp
Fuel filter (1)
Fuel pipe