Operating Instructions and Assembly Instructions
Troubleshooting Chart (Continued)
Symptom | Possible Cause(s) | Corrective Action |
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Pump primes and builds pressure, however, the equipment does not spray or produce a quality spray pattern
21.Clogged gun filter
22Clogged Spray Tip
21.Replace with new filter. Do not attempt to clean gun filters. Also, refer to Maintenance section
22.See Clearing Clogs section
| 23 A. Tip is damaged or worn | 23.A. Replace tip. Also, refer to Maintenance section |
| B. Paint requires thinning | B. Follow paint manufacturers thinning recommendations. |
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| Paint should not typically need to be thinned more than 8 |
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| oz. of solvent per gallon |
| C. Reversible Spray Tip in | C. Turn Spray Tip to Spray position. See Cleaning section for |
| cleaning position | details |
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Pump primes and builds | 24.Clogged Suction Filter | 24.Remove Suction Filter and clean. Also, refer to Maintenance |
pressure, but does not maintain |
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pressure once trigger is pulled | 25.Suction Assembly loose and/or | 25.Remove Suction Assembly, clean sealing surfaces and |
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| sealing surfaces are dirty at Inlet | reassemble hand tight |
| Valve |
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26.Paint thick due to cold weather. This problem usually occurs with Latex based coatings
27.Inlet Valve and/or Outlet Valve are worn
26.Do not paint Latex coatings in temperatures less than 50°F (10°C). Refer to paint manufactures minimum painting temperature recommendations
27.Replace valves. Also, refer to Maintenance section
Gun will not | 28.Trash caught in Gun Valve | 28.Clean or replace Gun valve. Also, refer to Gun Maintenance |
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| section. This is a very rare occurrence, and will not occur if filters |
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| are properly maintained |
| 29.Worn Gun Valve | 29.Replace Gun valve. Also, refer to Gun Maintenance section |
| 30.Dried paint under gun actuator | 30.Remove 1/4” nut and gun actuator at rear of gun. Remove |
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| dried paint from around needle and back of actuator. Replace |
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| actuator and 1/4” nut. Set gun trigger position with trigger |
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| lock in locked orientation (tabs horizontal) by the following |
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| instructions: With one hand holding trigger softly against |
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| lock, use a 1/4” nut driver to turn nut in until trigger starts to |
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| come off the lock, then back off the nut (counterclockwise) 1/2 |
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| turn. Pulling the trigger must not open the gun valve when |
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| trigger lock is activated. You should be able to get the actuator |
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| to wiggle slightly with your finger while holding the trigger |
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| against the locked trigger lock. |
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After moving equipment or | 31.Suction assembly loose or | 31.Tighten suction assembly onto inlet valve. |
adding paint to bucket, unit | damaged | problem is not remedied, consult Technical Support |
will not prime or spray |
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Oil in Paint | 32.Oil is leaking from between |
| Block and Hydraulic Housing |
32.Check hydraulic oil level. Add hydraulic oil if necessary (it is recommended that this be done by a qualified technician). Check block bolt torque
| 33.Diaphragm is damaged | 33.New diaphragm assembly is needed. (It is recommended that |
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| this be done by a qualified technician.) Refer to Maintenance |
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| Chart concerning torque settings and type of tools required |
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| to reassemble block onto housing. Refill piston with hydraulic |
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| oil. Correct assembly of internal check valve under diaphragm |
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| assembly is critical to proper operation of the pump – refer to |
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| Parts List or contact technical Support |
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Fluid leaks other than oil | 34.Loose connection | 34.Clean sealing surface and reassemble per assembly instructions |
| 35.Contaminated sealing surface | 35.Consult technical support |
| 36.Damaged component | 36.Consult technical support |
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Symptoms not listed | 37.Possible product quality issue. | 37.Call technical support at |
| (We would greatly appreciate |
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| your assistance in continuous |
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| product quality improvement) |
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www.chpower.com
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