Some bolts affixing the seat to the upper threaded rod on some Tama 1st Chair drum thrones made between April 2004 and April 2006, may need to be replaced because they can wear out prematurely, become deformed or break, and the seat can come apart.
Model Numbers that are possibly affected:
Drum Thrones: HT741 / HT730 / HT730S / HT530 / HT530C / HT440 / HT430
Individual Throne Seat: HTS7 / HTS5 / HTS5C / HTS4N
Description and Location of Bolts
The bolts are located on the underside of the seat as shown in Picture 1.
The bolts subject to this Notice have threads from the hex head to the tip, and they have no markings or stamps on the top of the hex head. Picture 2 shows what the bolt looks like.
If the bolts installed in your 1st Chair drum throne have markings on the top of the hex head or if they do not have threads the full length of the bolt, they are not affected by this Notice. Picture 3 shows examples of bolts that need not be replaced.