The video explains the correct operation procedure of Magnum Lock, HAP, and HAP-M. The operation method is the same for SG510 & SG series and SD510 & SD series.
Locking TunerMagnum Lock
Height Adjustable PostH.A.P
Height Adjustable Post with MGH.A.P-M
Violin Adjuster - Video Instruction
When equipping the existing musical instrument with GOTOH products, processing of addition to the musical instrument side may be necessity. If attachment impossible without processing is carried out, there is a possibility of leading to breakage of a musical instrument. Please check size etc. well before purchase. Moreover, We recommend that clearing work is requested from specialists, such as a repair shop. In addition, about breakage of the musical instrument when replacing, an accident, etc., it shall be considered as self-responsibility, and our company shall not take any responsibility.