IBM TS4500 - A-Accessor in Service Bay a

When the B accessor is in the Integrated Service Bay B (See ▌2▐ in Figure 9 on page
31), the A accessor cannot reach columns are 5-10 in that frame. The only
cartridges the A accessor can reach are in columns 1, 3 ▌1▐ and door-side columns
Figure 8. A-accessor in Service Bay A
30 IBM TS4500: Introduction and Planning Guide