Echo SRM-520ES, Operator'S Manual

Page: 25 / 132

23
Maintenance and care
Œ
Keep dirt away from engine and air intake grid.
Cleaning silencer
Œ
Carbon deposits in silencer (A) will cause a drop in engine out-
put and overheating. Clean deposits from silencer.
Check fuel system
Œ
Check before every use.
Œ
After refuelling, make sure fuel does not leak or exude from
around fuel pipe (A), fuel grommet (B) or fuel tank cap (C).
Œ
In case of fuel leakage or exudation, there is a danger of fire.
Stop using the machine immediately and request your dealer
to inspect or replace.
Check spark plug
1. Check plug gap. Correct gap is 0.6 mm to 0.7 mm.
2. Inspect electrode for wear.
3. Inspect insulator for oil or other deposits.
4. If the electrodes or terminals are worn, or if there are cracks
in the ceramics, replace them with new parts.
5. Tighten to 15 N·m - 17 N·m (150kgf·cm to 170 kgf·cm).
∗
The spark test (for checking whether the spark plug is spark-
ing) must be carried out by your dealer.
Lubricating drive shaft
Inspect the drive shaft (A) every 100 hours of use and replenish
grease if it is insufficient.
Air intake
IMPORTANT
Do not remove the silencer cover. If necessary, Please consult
your dealer.
a: 0.6 ‑ 0.7 mm
NOTE
Use good quality lithium multi grease.