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 persons

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 ensure 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 Figure 7–4).

3. From the rear of the cabinet, position the chassis rail assembly at the

correct mounting holes, as shown. Ensure that the rail bracket is

positioned toward the rear of the cabinet, and that the arrow on the

rail bracket points up.

4. Insert the front round standoff into the front chassis rail locating hole.

5. Support the chassis rail assembly against the front vertical cabinet rail

and maintain the front round standoff in its locating hole. Extend the rail

bracket to insert the rear round standoff into its correct rear chassis rail

locating hole.

6. Fasten the rail bracket to the rear vertical cabinet rail with its beveled nut

bar and three screws, as shown.

7. Fasten the chassis rail to the front 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.

Field Add-On with Universal Mounting Kit H229-AB/AC 7–9