CAUSE
• Nozzle is worn
• Nozzle sprays too much liquid
• Intake liquid amount is too small
• Sprayer hose is too long
• Sprayer hose it too narrow gauge
• Water is leaking at hose
connection parts
• Pressure regulator valve works
poorly
• Faults in intake or pressure
assemblies (stopped up, slack)
• Loose or worn key
• Conrod bolt or other bolt is loose
• Bearings are damage
• Pressure regulator valve is
assembled wrong
• Air is being drawn in
• O-rings are damaged
• Seal & packing are damaged
• Oil seal is damaged
• Clamping or assembly are
incorrect
REMEDY
• Replace
• Replace with suitable nozzle
• Diagnose under (1)
• Make it the proper length
• Make it the proper gauge
•Repair or replace
• Disassemble or adjust
• Clean
• Tighten or replace
• Tighten
• Replace
• Adjust
• Inspect
• Replace
• Replace
• Replace
• Disassemble or adjust
• Make sure pressure control knob is
in start position
• Check electrical connections to
unit
• Check condition of switch
• Check condition of cord
• Have all motor or electrical
service done by a qualified
electrician
PROBLEM
• Pressure Falls When Spray
Gun is Opened
–Nozzle
–Power Spray
–Hose
• Sprayer Hose Vibrates
• Noise
• Liquid or Oil Leak
• Motor Will Not Run
Troubleshooting
Hydra Sprayer Manual 19