[FIGURES 4 & 6 OMITTED]Next, the sequencer procedures for the subsystem (RAPS) were installed on the Al workstation and tested with the validated skills. An example of the resulting RAPs is shown in figure 7. There are several methods associated with the processing-start RAP, each indexed by a context clause. The method shown is valid when the required reverse-osmosis stage is purged, and the pps-select valve is open to the postprocessing systems (PPSs). In this case, the RAP starts the reverse-osmosis main feed pump, stops the recirculation pump, and turns the pps-select valve to reject (relieving downstream pressure). Then, the RAP turns the reverse-osmosis process valve to the purge position and turns the pps-select valve to the tank position.

Operating the augerWhen you turn the throttle of the auger, you''ll feel a substantial clockwise force through the handles. You do, after all, have to counteract the torque of the auger digging into the soil. Both operators should brace their left side drillpressflexshafts near the left handles to get their body into the act. Be sure not to dig too deep drillpressflexshafts without cleaning the dirt out of the hole. If you go deeper than 12 in. or so, the auger will be extremely heavy to lift out of the hole, or worse, you can drillpressflexshafts corkscrew the auger in so deep that it''ll get stuck. Photo 7 shows you what to do if that happens.

The first step in assuring proper installation, after proper material selection, is mixing the refractory. However, in order in to properly mix it you must know how you intend to install it. There are four fundamentally different ways to install refractories:* The gunning method permits the handling of a large volume of materials. Water is added at the discharge nozzle or back at the charging chamber. The amount of water is determined at the point of installation by the nozzle man and also by the characteristics of the refractory. Forms are not required. The advantages, of course, are speed and versatility. Rebound losses mean that more material will be needed than for casting. Overage will vary considerably depending on whether a ceiling, a wall or a floor is being installed drillpressflexshafts.

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