Rebuild The Assembly - Thermo Scientific SOLA II Flare User Manual

Rebuild the
Assembly
Thermo Scientific
Follow these steps to rebuild the subassembly:
1. Put a liberal coating of Dow Corning DC-111 on the slots in the drive
shaft.
2. Place the ball retainer over the shaft so that the holes in the retainer line
up with the slots in the shaft.
3. Put the balls in the holes of the retainer so that they rest in the slots.
They should be held in place by the thick lubricant.
4. Notice that the slots in the female race extend all the way to one end
but not the other. Observe also that one end of the drive shaft has a
1/4" hole. Put that end of the drive shaft into the end of the female race
that has the slot openings, sliding the balls into the slots.
5. Place the male end cap on a flat work surface. Set the O-Ring plate on
the end cap with the pins lined up to go through the three small O-
Rings. Pressing the plate in dislodges the O-Rings; do not press the
plate in.
6. The two bearing plates are identical except that one has three
countersunk holes to accept the subassembly screw heads. Locate the
bearing plate that is not countersunk and line it up on top of the O-
Ring plate (if both bearing plates are countersunk, they are
interchangeable). Press down to force the pins through the O-Rings and
bearing plate, continuing until the two parts are riding about half way
down the pins.
7. Slide the three bushings over the pins.
8. Install the drive shaft/ball assembly with the 1/4" hole end down. The
female race should between the bushings.
9. Place the remaining bearing plate in position with the countersunk
holes up, and screw the entire assembly together. Tighten the screws in
rotation to insure optimum alignment.
10. Pull the subassembly off the male end cap so that its orientation can be
checked, and proceed with step 2 of Assembly.
Appendix B
Rotary Valve Service
SOLA II Flare User Manual B-12