Opto Microscope Boom Arm With 043-609002, 043-601014, and 043-690104 Clamps 137233196048 The speed selector does not

The speed selector does not switch to 45 RPM (only 33 RPM works)

Manufacturer ThorLabs Model Number SI254 SKU 19-80982 Ref 23-116495

Manufacturer Charles River Model Number Endosafe PTS SKU 19-75513 Ref 23-108676

Manufacturer Svetlana Model Number EL509/6KG6 SKU 19-83507 Ref 23-121237

Manufacturer Intel Model Number E5-2609 SKU 19-07408 Ref 23-73687

Opto Microscope Boom Arm With 043-609002, 043-601014, and 043-690104 Clamps 137233196048 The speed selector does notCondition Used Description Parts includes: Opto Microscope Boom Arm 043 609002 Clamp (two similar clamps without model number) 043 601014 Clamp (one similar clamps without model number) 043 690104 Clamp 28" Mount 20" Arm 15" Arm Item was recently removed from working service and is in excellent working order. Item will come with a 30 Day Warranty. Cosmetically in good condition showing minor scuffs scratches blemishes from previous use. No additional