2.2 PDA Installation
Figure 2–3 PDA Enclosure Levelers
MLO-007745
2
1
6. While the enclosure is still on the skid, loosen the 3/4-inch upper (lock) nut
on each foot by turning clockwise (Figure 2–3). Turn the 9/16-inch bottom nut
on each foot counterclockwise to raise the feet for skid clearance.
Warning
The PDA enclosure weighs 500 kg (1100 lbs). For safety, two people are
needed to roll the enclosure down the ramps.
7. Roll the enclosure down the ramp boards. The front two wheels are on swivel
casters, the rear two are fixed.
8. Ensure that both enclosure side panels are installed and secure.
9. Position the PDA enclosure to the right (facing front) of the DPU enclosure.
10. Leave a 36-inch clearance at the front and rear of the enclosure for service.
Caution
All enclosure side panels must be installed.
This is important to
maintain proper cooling air flow and to reduce radiated emissions.
11. Raise the enclosure up on its feet as follows:
a. Lower each foot into position by turning clockwise on the 9/16-inch nut on
the foot.
b. Tighten each 3/4-inch locknut counterclockwise to lock the feet in place.
12. Ensure that the PDA enclosure is leveled such that its side panel butts
against the DPU side panel firmly with no gap. Also, ensure that the height
of each enclosure is identical so that horizontal lines are in alignment.
Parallel Disk Array Installation 2–5
