IBM Medium J11, Руководство по установке и обслуживанию оборудования

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17. Middle-rails will eventually “click” into place as the service position locks engage. Ensure both sides
engage at the same time, and both inner rails are fully engaged on their respective middle slide
tracks.
18. Carefully and slowly lower the mechanical lift two to three inches so that the weight of the chassis
now fully rests on the rail kit. Keep the lift elevation two to three inches below the chassis elevation
until the enclosure is fully installed in the rack. This is a safety measure in case the rails are not
seated properly, or another mechanical/integration failure occurs.
19. Locate the inner slide lock springs on both the left and right rail kits, and depress both to disengage
the service protection lock. Continue depressing springs while inserting the chassis far enough to
bypass the locks on both sides.
20. Continue inserting the chassis all the way into the rack, ensuring the chassis ears are coincident with
the rack mounting flanges.
21. Secure the 4U chassis ears to the rack/rail kit with embedded thumbscrews (quantity-2, 1perside).
For shipping and transport, secure the 10-32 panhead screws provided, and torque to 3.96 N-m (35
lbf-in) (quantity-4, 2 per side).
22. Using the quantity-2 panhead screws provided, attach the CMA chassis attachment bracket to the
chassis above the CMA shelf, on its inner surface. Torque screws to 1.36 N-m (12 lbf-in). The images
below show the progression of steps from left to right.
36 IBM Cloud Object Storage System: Medium/Large J11/J12 Disk Enclosure Hardware Installation and
Maintenance Manual