Echo BCLS-580 Operator's Manual page 37

Check spark plug
a: 0.6 - 0.7 mm
Lubricating drive shaft
1. Drive shaft
Angle transmission
1. Angle transmission
Checking the blade
2. Plug (Bolt)
Maintenance and care
Check plug gap. Correct gap is 0.6 mm to 0.7 mm.
Inspect electrode for wear.
Inspect insulator for oil or other deposits.
Replace plug if needed and tighten to 15 N·m - 17 N·m (150
kgf·cm to 170 kgf·cm).
Inspect the drive shaft every 100 hours of use and replenish
grease if it is insufficient.
NOTE
Use good quality lithium multi grease.
Remove plug from angle transmission.
Add grease, if necessary, using low pressure pump.
NOTE
Use good quality lithium multi grease.
Do not overfill housing.
Reinstall plug.
Use only blade designated for this model by the manufacturer.
When a crack is noticed on the blade, do not use it but replace
with a new one.
Ensure that the blade is correctly fitted in accordance with the
instructions.
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