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Stihl: 63PM3 56
even though the motor hums or the timer advances
or burn marks on the metal contacts
Confirm the uF (MFD) rating and voltage of the new capacitor match the component being replaced
Disconnect all power and shut off the propane supply before installation
X472000070 Speed Feed 400 Trimmer Head Cap & Spring Kit - Fits Echo SRM-225 SRM-225i SRM-225SB SRM-225U - 4 Pack 1N60 Stihl: 63PM3 56X472000070 Speed Feed 400 Trimmer Head Cap & Spring Kit Key Features Package includes: 4 replacement caps and 4 replacement springs. Designed for trimmer heads with a rapid line loading system. Constructed from high impact plastic for durability. Direct replacement for the original cap and spring assembly. Replaces Cross Reference Part Numbers X472000070 Compatibility & Fitment Fits Echo Speed Feed 400 trimmer heads. Compatible with Echo SRM series