TRANSMISSION GEARS
LUBRICATION
The transmission gears in the gear case
need be lubricated periodically with gear
grease. Check the gear case grease level
about every 50 hours of operation by
removing the sealing screw on the side of
the case.
If no grease can be seen on the sides of
the gear, follow the steps below to fill with
gear grease up to 3/4 capacity.
Do not completely fill the transmission gear case.
1. Hold the string trimmer on its side so that the sealing screw is facing upwards
(Fig. 20).
2. Use the hex key provided to loosen and remove the sealing screw.
3. Use a grease syringe (not included) to inject some grease into the screw hole,
taking care not to exceed 3/4 capacity.
4. Tighten the sealing screw after injection.
CLEAN THE UNIT
◾
Remove the battery.
◾
Clear any grass that may have wrapped itself around the drive shaft or trimmer
head.
◾
Use a small brush or a small vacuum cleaner to clean the air vents on the rear
housing.
◾
Keep the air vents free of obstructions.
◾
Clean the unit using a damp cloth with a mild detergent.
◾
Do not use any strong detergents on the plastic housing or the handle. They can
be damaged by certain aromatic oils, such as pine and lemon, and by solvents
such as kerosene. Moisture can also cause a shock hazard. Wipe off any moisture
with a soft dry cloth.
30
STRING TRIMMER ATTACHMENT — STA1600/STA1600-FC
20
Gear Case
Sealing
Screw