64 Service Manual (AA-RS2ED-TE, July 2004)

FRU Removal and Replacement

249Director 2/64 Service Manual

4. Identify the defective SBAR assembly from the amber LED on the assembly

or failure information at the Hardware View.

5. The SBAR assembly is secured to the director backplane with two brass Allen

screws. Both screws cam the assembly into and out of the backplane.

Disconnect the SBAR assembly from the director backplane:

Caution: The torque tool supplied with the Director 2/64 is designed to

tighten director logic cards and is set to release at a torque value of six

inch-pounds. Do not use an Allen wrench or torque tool designed for use with

another HP product. Use of the wrong tool may overtighten and damage logic

cards.

a. Insert the tip of the torque tool (1) into either brass Allen screw of the

SBAR assembly (2). Turn the screw one or two turns counterclockwise,

as shown in Figure 79.

Figure 79: SBAR assembly removal and replacement

b. Insert the tip of the torque tool into the other brass Allen screw. Turn the

screw one or two turns counterclockwise.

c. Alternately loosen each Allen screw one or two turns until the torque tool

turns freely.

6. Using the handle, pull the SBAR assembly out of the director chassis. Support

the assembly with one hand when performing this step.

7. Place the SBAR assembly in an antistatic bag to provide ESD protection.