Troubleshooting
Troubleshooting
Before you proceed with Troubleshooting, perform Pressure Relief Procedure, page 7. Check everything in the troubleshooting tables before you disassemble any equipment.
Paint Guns and Bead Guns
PROBLEM | CAUSE |
| SOLUTION |
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Paint guns not spraying | Clogged tips | Clean tips | |
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| Fuse (20A) is blown | Check 20A fuse between engine and solenoid | |
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| air valve connector. | |
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| Gun arm safety switch | Check to make sure connectors on gun arm | |
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| safety switch are properly attached. When | |
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| gun arm is in down position, measure 12V | |
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| across the switch terminals to ensure it is | |
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| working properly. Replace switch if neces- | |
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| sary. | |
| Air compressor and unloader valve | 1. | Turn toggle switch at top of unloader (148) |
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| to horizontal. NOTE: Unloader bypasses |
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| air when system pressure reaches |
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| approximately |
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| 2. | Turn off bead tank air valve (184) to iso- |
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| late system. |
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| 3. | If no leaks, check paint gun actuation air |
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| lines. |
| Paint gun actuation airline | 1. | Remove actuation air lines from paint gun. |
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| 2. | Trigger skipline controller. |
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| 3. | If air flows from airline, repair paint gun |
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| (manual 308613). If air does not flow, |
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| check solenoid valves. |
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| Solenoid valves | 1. | Go to diagnostic screen and check to see |
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| if all solenoids are being recognized by |
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| RoadPak Skipline Controller (manual |
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| 3A1215). |
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| 2. | Remove solenoid valve cover (519). |
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| 3. | Check for broken wiring or a damaged |
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| plug (see Wiring Diagram, page 25). |
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| 4. | Check for 12V DC between red wire and |
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| ground. |
| Programmable Skipline Controller | 1. | Go to diagnostic screen and make sure all |
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| switches are properly working (manual |
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| 3A1215). |
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| 2. | Inspect wiring and plugs for damage. |
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| 3. | Replace any damaged wiring or plugs |
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| (manual 3A1301). |
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3A1696C | 19 |