SHARPEN THE LINE-CUTTING BLADE
WARNING:
performing any maintenance on the line-cutting blade.
1. Remove the battery.
2. Remove the line-cutting blade from the guard.
3. Secure the blade in a vise.
4. Wear proper eye protection and gloves and be careful not to cut yourself.
5. Carefully file the cutting edges of the blade with a fine-tooth file or sharpening
stone, maintaining the original cutting edge angle.
6. Replace the blade on the guard and secure it in place with the two screws.
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. 27).
2. Use the multi-function wrench
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.
Always protect your hands by wearing heavy gloves when
STRING TRIMMER ATTACHMENT—STA1500
27
Sealing Screw
Gear Case
27