4322
Service Manual
Pressure Generation Test (On-Board Motor)
Use the following instructions to test the internal piston pump. The internal piston pump
generates pressure and also can create a vacuum. To fully test, both functions should be
checked.
Check pressure generation as follows:
1. Turn on the Controller. Disconnect all pressure hoses.
2. Put the Controller in Gauge mode and set the supply to Internal Supply . See the
3. Set a 300 psi target pressure. After the Ready indicator shows, let the Controller
4. Push to stop pressure control then wait 30 seconds.
5. Run the Leak Test tool or if remotely operated, send the "rate" command. See the
6. Allowable leak rate across all ranges is 0.01 % of reading. At 300 psi, 0.03 psi/sec is
Check the vacuum as follows:
1. Put the Controller in Absolute mode and set the supply to Internal Supply . See the
2. Set a 0.5 psi target pressure. After the Ready indicator shows, let the Controller
3. Push to stop pressure control then wait 30 seconds.
4. Run the Leak Test tool or if remotely operated, send the "rate" command. See the
5. The allowable leak rate is 0.0015 psi/s at 0.5 psi (0.01 % of the reading if in negative
4-6
UUT
Bubbles Show a Leak
4322 Operators Manual for instructions.
stabilize for 5 minutes.
4322 Operators Manual for remote operation instructions.
allowable.
4322 Operators Manual for instructions.
stabilize for 5 minutes.
4322 Operators Manual for remote operation instructions.
gauge measurement mode).
Figure 4-1. Spray Test
Spray Bottle
hbx026.eps
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