HP A3312A - Manual (Page 109)

Service
Power Button and Push Rod
103
Service
Power Button and Push Rod
To replace the power button and push rod in either storage system (Figure 45 or Figure 46):
1. Remove the backplane assembly.
2. Pull out the power button (21) with pliers and remove it.
3. Remove the spring (20).
4. Slide the push rod (19) out of the rear of the chassis.
5. Reassemble the parts in the reverse order, holding the push rod while snapping the button onto the
rod.
NOTE! (1) The rear of the push rod is angled upward to fit the switch on the backplane
assembly. (2) The spring fits between the enclosure and the power button. (3) The vertical mark
on the button should point upward.
6. Check for proper operation.