Solvent Pump; Air Solenoid Check - Graco SuperCat 232096 Instruction Manual

Solvent Pump

Problem
Pump does not run
Pump does not stop
Solvent usage display value does
not change

Air Solenoid Check

Problem
Pumps not turning on and off
properly
5
Fig. 91
Troubleshooting
Operating Condition
In spray or manual mode, schematic
solvent pump light on
In spray or manual mode, solvent
pump key pressed, schematic solvent
pump light off
In manual or spray mode, schematic
Premier pump light off
In manual or spray mode
Operating Condition
In manual or spray mode
3
2
4
7
Cause/Solution
Check pump air regulator setting.
Make sure pump air ball valve is
open.
Check solvent pump air solenoid. See
below.
Check keypad continuity. See page
74.
Replace circuit board. See Service,
page 86.
Check solvent pump air solenoid. See
below.
Check keypad continuity. See page
74.
Check material usage display. See
page 72.
Cause/Solution
Push solenoid button to manually
open solenoid. If pump operates,
continue to next step.
Visually check the feed pump air
solenoid connections.
Switch the wire connection with an air
solenoid that operates. See Fig. 91.
Replace solenoid if faulty. See Ser-
vice, page 88.
1
6
1
Feed Pump B
2
Feed Pump A
3
Solvent Pump
4
Alarm
5
Premier Pump
6
Air line
7
Electrical Connection
8304A