Installation guide

Field Add-On with Universal Mounting Kit H229-AB/AC
7.1 Chassis Rail Installation
WARNING
Use care in supporting the chassis rail assembly. It is heavy and
awkward to position within the cabinet. If possible, use two people
to support and position the chassis rail assembly. The chassis rail
assembly may cause personnel injury and equipment damage if
dropped during installation.
Note
To be sure of the proper alignment of the chassis rail assembly, use care
to position the round standoffs in the correct front and rear chassis rail
locating holes (see Figures 7–1 and 7–3).
3. From the front of the cabinet, position the chassis rail assembly at
the correct mounting holes, as shown. Ensure that the rail bracket is
positioned toward the front of the cabinet, and that the arrow on the rail
bracket points up.
4. Insert the rear round standoff into the rear chassis rail locating hole.
5. Support the chassis rail against the rear vertical cabinet rail and maintain
the rear round standoff in its locating hole. Extend the rail bracket to
insert the front round standoff into its correct front chassis rail locating
hole.
6. Fasten the rail bracket to the front vertical cabinet rail with its beveled
nut bar and three screws, as shown.
7. Fasten the chassis rail to the rear vertical cabinet rail with its beveled nut
bar and three screws, as shown.
8. Tighten the screws fastening the rail bracket to the chassis rail.
9. Install two U-nuts along the outer flange of the front vertical cabinet rail.
Install one U-nut at the hole just above the front chassis rail locating hole
and the other at the eighth hole below the locating hole.
7–6 Field Add-On with Universal Mounting Kit H229-AB/AC