Instruction Manual

14 Maintenance and Care
The following intervals apply to normal operating
conditions only. If your daily working time is longer
or operating conditions are difficult (very dusty work
area, etc.), shorten the specified intervals accord‐
ingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
as required
Complete machine Visual inspection (con‐
dition, wear, leaks)
X X
Clean X
Replace any damaged
parts
X
Control handle Check operation X X
Air filter Visual inspection X X
Clean X X
Replace X X
Manual fuel pump (if fitted) Check X
Have repaired by serv‐
icing dealer
1)
X
Pickup body in fuel tank Check X
Install new pickup body X X X
Fuel tank Clean X X
Carburetor Check idle adjustment X X
Adjust idle speed X
Spark plug Adjust electrode gap X
Replace after 100 oper‐
ating hours
Cooling inlets Visual inspection X
Clean X
Spark arrestor in muffler
Check
1)
X
Have replaced by serv‐
icing dealer
1)
X X
All accessible screws and
nuts (not adjusting screws)
Retighten X
Anti-vibration elements
2)
Check X X X
Have replaced by serv‐
icing dealer
1)
X
Safety labels Replace X
1)
STIHL recommends an authorized STIHL servicing dealer
2)
BG 66 C, BG 86, BG 86 C, SH 86, SH 86 C
14 Maintenance and Care English
0458-296-8321-F 17