Graco DURON Performance Max 395 Repair Manual page 18

Pressure Control Transducer
Removal
Refer to Fig. 8.
1.
Relieve pressure; page 5.
2. Remove four screws (12) and cover (50).
3. Disconnect lead (E) from motor control board (49).
4. Remove two screws (47) and filter housing (15).
5. Thread transducer lead plastic connector down
through transducer grommet (20).
6. Remove pressure control transducer (38) and
packing o-ring (3) from filter housing.
Installation
1. Install packing o-ring (3) and pressure control
transducer (38) in filter housing (15). Torque to
30–35 ft-lb.
2. Thread transducer lead plastic connector up
through transducer grommet (20).
3. Install filter housing (15) with two screws (47).
4. Connect lead (E) to motor control board (49).
5. Install cover (50) with four screws (12).
Stored Data (Not available on all sprayers)
The SmartControl contains stored data to assist with troubleshooting and maintenance. To view this stored data on
the digital display, proceed as follows:
1.
Relieve pressure; page 5.
2. Plug in sprayer.
3. Hold down display button and turn sprayer ON.
Data Point
1
2
3
4
18 309714
Pressure Control Repair
Definition
Number of hours power switch has been ON with power applied
Number or hours motor has been running
Last error code. Press and hold display button to clear error code to E=00
Software revision
Pressure Adjust Potentiometer
Removal
Refer to Fig. 8.
1.
Relieve pressure; page 5.
2. Remove four screws (12) and cover (50).
3. Disconnect all leads from motor control board (49).
4. Remove six screws (6) and board (49)
5. Remove potentiometer knob (11), nut (37a) and
pressure adjust potentiometer (37).
Installation
1. Install pressure adjust potentiometer (37), nut
(37a) and potentiometer knob (11).
a. Turn potentiometer fully clockwise.
b. Install knob at full clockwise position.
2. Install board (49) with six screws (6).
3. Connect all leads to motor control board (49). See
Fig. 8.
4. Install cover (50) with four screws (12).
4. Release display button about 1 second after
turning on sprayer.
Sprayer model number displays (U395, U495) for a
few seconds and then data point 1 is displayed.
5. Push display button and next data point displays.
6. Turn sprayer OFF and then ON to leave stored
data mode.