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Install the new trimmer head
1. Align the flat slot in the spool
assembly with the flat in the drive
shaft and mount the spool assembly
into place (Fig. 16).
2. Use a 17 mm socket or impact
wrench to tighten the lock nut
COUNTERCLOCKWISE.
3. Follow steps 4 and 5 in
"RELOADING THE CUTTING LINE" section in this manual to mount the lower
cover assembly.
4. Follow the instructions in "LINE REPLACEMENT" section in this manual to reload
the cutting line.
5. Start the machine to see whether the string trimmer will work normally. If it does
not, reassemble as described above.
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.
Always protect your hands by wearing heavy gloves when
STRING TRIMMER ATTACHMENT — STA1700/STA1700-FC
16
Flat Slot
Flat
27
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