22
Operating Instructions and Assembly Instructions
www.chpower.com
Troubleshooting Chart (Continued)
Symptom
Possible Cause(s)
Corrective Action
Pump primes and builds
pressure, however, the
equipment does not spray or
produce a quality spray pattern
21. Clogged gun filter
21. Replace with new filter. Do not attempt to clean gun filters.
Also, refer to Maintenance section
22 Clogged Spray Tip
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.
Paint should not typically need to be thinned more than 8
oz. of solvent per gallon
C. Reversible Spray Tip in
cleaning position
C. Turn Spray Tip to Spray position. See Cleaning section for
details
Pump primes and builds
pressure, but does not maintain
pressure once trigger is pulled
24. Clogged Suction Filter
24. Remove Suction Filter and clean. Also, refer to Maintenance
section
25. Suction Assembly loose and/or
sealing surfaces are dirty at Inlet
Valve
25. Remove Suction Assembly, clean sealing surfaces and
reassemble hand tight
26. Paint thick due to cold weather.
This problem usually occurs with
Latex based coatings
26. Do not paint Latex coatings in temperatures less than 50°F
(10°C). Refer to paint manufactures minimum painting
temperature recommendations
27. Inlet Valve and/or Outlet Valve
are worn
27. Replace valves. Also, refer to Maintenance section
Gun will not shut-off
28. Trash caught in Gun Valve
28. Clean or replace Gun valve. Also, refer to Gun Maintenance
section. This is a very rare occurrence, and will not occur if filters
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
dried paint from around needle and back of actuator. Replace
actuator and 1/4” nut. Set gun trigger position with trigger
lock in locked orientation (tabs horizontal) by the following
instructions: With one hand holding trigger softly against
lock, use a 1/4” nut driver to turn nut in until trigger starts to
come off the lock, then back off the nut (counterclockwise) 1/2
turn. Pulling the trigger must not open the gun valve when
trigger lock is activated. You should be able to get the actuator
to wiggle slightly with your finger while holding the trigger
against the locked trigger lock.
After moving equipment or
adding paint to bucket, unit
will not prime or spray
31. Suction assembly loose or
damaged
31. Tighten suction assembly onto inlet valve. Re-prime sprayer. If
problem is not remedied, consult Technical Support
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
this be done by a qualified technician.) Refer to Maintenance
Chart concerning torque settings and type of tools required
to reassemble block onto housing. Refill piston with hydraulic
oil. Correct assembly of internal check valve under diaphragm
assembly is critical to proper operation of the pump – refer to
Parts List or contact technical Support
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
Symptoms not listed
37. Possible product quality issue.
(We would greatly appreciate
your assistance in continuous
product quality improvement)
37. Call technical support at 1-800-626-4401
