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Troubleshooting
8 313776G
Troubleshooting
Problem Cause Solution
Gas engine pulls hard
(won't start).
Hydraulic pressure is too high. Turn hydraulicpressure knob counterclockwise to
lowest setting.
Engine won't start. Engine switch is OFF. Turn engine switch ON.
Engine is out of gas. Refill gas tank. Honda Engines Owner's Manual.
Engine oil level is low. Try to start engine. Replenish oil, if necessary.
Honda Engines Owner's Manual.
Spark plug cable is disconnected or damaged. Connect spark plug cable or replace spark plug.
Cold engine. Use choke.
Fuel shutoff lever is OFF. Move lever to ON position.
Oil is seeping into combustion chamber. Remove spark plug. Pull starter 3 to 4 times.
Clean or replace spark plug. Start engine. Keep
sprayer upright to avoid oil seepage.
Engine operates, but dis-
placement pump does
not operate.
Pump valve is OFF. Turn pump valve ON.
Pressure setting is too low. Turn pressure adjusting knob clockwise to
increase pressure. Manual 311018.
Fluid filter (11) is dirty. Clean filter.
Tip or tip filter is clogged. Clean tip or tip filter. Manual 311254.
Displacement pump piston rod is stuck due to
dried paint.
Repair pump. Manual 311845.
Belt worn, broken or off pulley. Replace.
Hydraulic fluid too low. Shut of sprayer. Add fluid*.
Hydraulic motor not shifting. Set pump valve OFF. Turn pressure down. Turn
engine OFF. Pry rod up or down until hydraulic
motor shifts.
* Check hydraulic fluid level often. Do not allow it to become too low. Use only Graco approved hydraulic fluid, page 7.