Periodic Inspection; Inspecting The Spark Plug - Makita EW Serie Manual De Instrucciones

2. PERIODIC INSPECTION

Periodic maintenance is vital to the safe and efficient operation
of your product.
Check the table below for periodic maintenance intervals. The
below chart is based on the normal product operation
schedule.
Periodic Maintenance Schedule table
Maintenance Items
Clean pump set and check bolt and nuts
EN
Check for leakage from hoses and fitting
Check and refill engine oil
Change engine oil (*Note 1)
Clean spark plug
Clean air cleaner
Replace air cleaner element
Clean fuel strainer
Clean and adjust spark plug and electrodes
Replace spark plug
Remove carbon from cylinder head (*Note 2)
Check and adjust valve clearance (*Note 2)
Clean and adjust carburetor (*Note 2)
Replace fuel lines
Overhaul engine (*Note 2)
*NOTE: 1. Initial oil change should be performed after first twenty (20) hours of operation.
Thereafter change oil every hundred (100) hours.
Before changing oil, check for a suitable way to dispose of old oil.
Do not pour it down into sewage drains, onto garden soil or into open streams. Your local zoning
or environmental regulations will give you more detailed instructions on proper disposal.
*NOTE: 2. As to the procedures for these items, please refer to the SERVICE MANUAL or consult your
nearest Makita service dealer.

3. INSPECTING THE SPARK PLUG

(See Fig.7 7 7 7 7 -q q q q q )
Clean off carbon deposits on the spark plug electrode using a plug cleaner or wire brush.
■
Check electrode gap. (See Fig.7-q-q)
■
Adjust the gap, if necessary, by carefully bending the side electrode.
Use a proper spark plug
■
Model
EW120R NGK CMR6A
EW220R
EW220ST
EW320R
NGK BR-6HS
EW220TR
EW320TR
8
Every
8 hours
(Daily)
● (Daily)
● (Daily)
● (Refill daily up to upper level)
● (Initial
20 hours)
Type Electrode gap
0.7 to 0.8 mm
0.6 to 0.7 mm
Replace rubber pipes for fuel passage every two
years. If fuel leakage is found, replace the pipe
immediately.
Every Every Every
50 hours 200 hours 500
(Weekly) (Monthly) hours
● (Every
100 hours)
●
●
●
●
●
CAUTION
Every
1000
hours
●
●
●
●
●
(Every 2 years)
●