56-VOLT LITHIUM-ION CORDLESS 15" STRING TRIMMER—ST1520 & ST1520S26
Remove the trimmer head
1. Remove the battery pack from the
trimmer.
2. Press the release tabs on the
trimmer head and remove the lower
cover assembly of the trimmer head
by pulling it straight out
(see Fig. 18a & 18b).
3. Remove the cutting line from the
trimmer head (Fig. 22).
4. Take the spring out of the spool
assembly, if necessary. Save it for
reassembly.
5. Wear gloves. Use one hand to grasp
the spool assembly to stabilize it,
and use the other hand to hold an
impact wrench to loosen the nut in a
counterclockwise direction (Fig. 23).
6. Remove the nut, washer, spool
assembly and upper cover from the motor shaft (Fig. 24).
22
23
24
Upper Cover
Washer
Nut
Spool Assembly
Impact Wrench
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