Installing Or Replacing Low Level Sensors On Sst Tanks - Graco PR70 Manual

On-Board Stainless Steel Feed Systems
Be careful when interacting with the stainless steel feed systems because the contents and
surfaces may be hot if the system uses a heat package.
Read all of the manufacturer's warning and material MSDS to know the specific hazards of
the material used. Wear respirator, gloves and other protective clothing as necessary
before dispensing material.
Always unplug the agitators from their power source (electric or pneumatic) before
performing any maintenance.
Hearing protection may be required if sitting in close proximity to the pneumatic agitators

Installing or Replacing Low Level Sensors on SST Tanks

If your machine comes with the low level sensors installed, this section will already be completed at the factory.
However, if the sensor package is ordered at a later date or a part needs replaced, please refer to instructions
below
Installation of Low Level Sensors for the On-board and Off-Board Stainless Steel tanks is the same procedure for
both. Only the On-board tank is shown in the illustration below.
As a rule of thumb, you will want to change the angle of the On-board Stainless Steel Tank prior to installing the low
level sensors. If they face directly backwards it will make getting the main guard very difficult to install and remove.
1
2
3
Figure 36: Installation of Low Level Sensors on Stainless Steel Tanks
PTFE
1. As shown in the figure above, first insert the proximity sensor well (1) into the tank and turn until flush
with the flat face of the tank.
2. Insert the proximity sensor (2) into the previously installed proximity sensor well
3. Slide the retainer nut (3) over the proximity sensor's chord and hand tighten into the prox well.
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