Instruction manual

High Throughput Diffusion Pumps
42
DRAFT 12/23/04
HS-32 Jet Assembly
Figure 28 HS-32 Jet Assembly
To disassemble the jet:
1. Unscrew and remove the hex nut holding the cold
cap in place. Note its orientation prior to removal
2. Remove the cold cap (or halo baffle) as described in
“Cold Cap” on page 38.
3. Remove the nut, washer, and the top jet cap from the
center jet rod.
4. Using the now-exposed cross member and the
appropriate lifting equipment, lift the entire jet
assembly out of the pump body, leaving the jet rod in
place.
5. Remove the second stage jet shield.
6. Remove the two nuts on the cross member and lift
out the second stage and fractionating tub, leaving
the two rods in place.
7. Unscrew and remove the two tie rods.
8. Disassemble the remaining jet stages.
Cold Cap
Tie Rods
Jet Rod
Cross Member
NOTE Do not remove the three screws holding
the fractionating tube to the top stage.