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24 Approved Deflector and Cutting Attachment Combinations
23.4 Engineering Improvements
STIHL's philosophy is to continually improve all of its 
products. As a result, engineering changes and 
improvements are made from time to time. Therefore, some 
changes, modifications and improvements may not be 
covered in this manual. If the operating characteristics or the 
appearance of your machine differs from those described in 
this manual, please contact your STIHL dealer or the STIHL 
distributor for your area for assistance.
23.5 EMC Compliance Statement for Power Tool 
and Charger
ThisClass B digital apparatus complies with Canadian 
ICES-003.
24.1 STIHL FSA45
WARNING
To reduce the risk of personal injury from thrown objects and 
contact with the cutting attachment, never operate the 
trimmer without the proper deflector and loop handle, 
@ 5.7.4. Ensure that the deflector and loop handle are 
properly mounted and adjusted at all times while working. 
Never use metal blades or metal-reinforced line on this 
trimmer, @ 5.7.4. 
The deflector provided with the FSA45 is the only 
authorized deflector for this unit. When properly installed, it 
is designed to reduce the risk of injury from thrown objects 
and inadvertent contact with the cutting attachment.
The FSA45 is approved for use only with the PolyCut2-2 
mowing head, which may be operated only with the following 
cutting attachments:
– Nylon Trimmer Line: round quiet line with a diameter of 
0.065 in. (1.6 mm).
– Rigid Polymer Blades: PolyCut 2-2 polymer blades.
The specified nylon trimmer line and the PolyCut 2-2 
polymer blades are authorized for use in both the trimmer 
and edger-trimmer configurations.
25.1 Genuine STIHL Replacement Parts
STIHL recommends the use of genuine STIHL replacement 
parts. Genuine STIHL parts can be identified by the STIHL 
part number, the   logo and, in some cases, by the 
STIHL parts symbol  . The symbol may appear alone on 
small parts.
STIHL products must not be disposed of in the 
household trash, but only in accordance with local, 
state and federal laws and regulations and as 
provided in this manual, @ 26.
The RBRC seal indicates that STIHL has prepaid for 
battery recycling.
Insulation: Class II (Double Insulation)
Use and store charger only indoors in dry rooms 
California Energy Commission. This battery system 
complies with the California Energy Commission 
efficiency requirements.
24 Approved Deflector and Cutting 
Attachment Combinations
25 Replacement Parts and Equipment