Why is my Graco Paint Sprayer hydraulic pump so noisy?
- SStephanie WangSep 3, 2025
If there is excessive hydraulic pump noise in your Graco Paint Sprayer, it may be due to: * A low hydraulic fluid level. Shut off the sprayer and add fluid.
Why is my Graco Paint Sprayer hydraulic pump so noisy?
If there is excessive hydraulic pump noise in your Graco Paint Sprayer, it may be due to: * A low hydraulic fluid level. Shut off the sprayer and add fluid.
Why does my Graco Paint Sprayer gas engine pull hard and not start?
If the gas engine of your Graco Paint Sprayer pulls hard and won’t start, it could be because: * The hydraulic pressure is too high. Turn the hydraulic pressure knob counterclockwise to the lowest setting.
Why does fluid spray start late on my Graco Paint Sprayer?
If the fluid spray starts after the spray icon is shown on the display of your Graco Paint Sprayer, it may be because: * The interrupter is improperly positioned. Turn the screw counterclockwise until the spray icon synchronizes with fluid spray.
Why does fluid spray start early on my Graco Paint Sprayer?
If the fluid spray starts before the spray icon is shown on the display of your Graco Paint Sprayer, it may be because: * The interrupter is improperly positioned. Turn the screw clockwise until the spray icon is synchronized with fluid spray.
Why is the spray icon always on for my Graco Paint Sprayer?
If the spray icon is always shown on the display of your Graco Paint Sprayer, it could be due to: * An improperly positioned interrupter. Turn the screw clockwise until the spray icon is synchronized with the fluid spray. * A damaged reed switch assembly. Replace the reed switch assembly.
Why won't the pressure control knob rotate on my Graco Paint Sprayer?
If the pressure control knob on your Graco Paint Sprayer does not rotate, it could be because: * The knob is jammed. Pull back the cover where the remote cable connects to the hydraulic pump and turn counterclockwise until free.
Why does the pressure knob spin freely on my Graco Paint Sprayer?
If the pressure control knob on your Graco Paint Sprayer rotates freely with no pressure change, it's possible that: * The remote cable is broken or disconnected. Replace or reconnect the cable.
Why does my Graco Paint Sprayer engine bounce when striping?
If the engine bounces when striping with your Graco Paint Sprayer, it could be because: * A spring is broken, loose, or missing. Replace or reconnect the spring.
Critical safety information regarding fire, health, and operational hazards.
Information on selecting and using spray tips for different materials.
Basic principles for equipment repair and grounding procedures.
Steps for pressure relief, periodic checks, and trigger lock usage.
Solutions for operational problems and caster wheel adjustments.
Procedures for adjusting the can actuator for optimal dot size.
Removal and installation of key electrical system components.
Steps for removing and installing the pressure control transducer.
Understanding display codes for system status and faults.
Guide for replacing the distance sensor on the sprayer.
Detailed steps for servicing the hydraulic pump.
Steps for replacing the fan belt.
Procedures for engine removal and installation.
Steps for rebuilding the hydraulic motor.
Steps for changing hydraulic oil and filters.
Procedures for removing and installing the gallon counter.
Procedures for removing and installing the displacement pump.
Visual guide to component locations and parts pages.
Comprehensive list of all parts with reference numbers and descriptions.
Electrical schematic for the Auto-Layout system components.
Key performance and physical specifications of the sprayer.
Manufacturer warranty details and contact information.
| Engine | Honda GX160 |
|---|---|
| Operating Pressure | 2000 PSI |
| Power Source | Gasoline |
| Material | Steel |
| Max Flow Rate | 0.54 GPM |
| Flow Rate | 0.54 GPM |
| Paint Capacity | 5 gal (19 l) |
| Hose Length | 50 feet |
| Max Operating Pressure | 3300 psi |












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