IOUBLESHOOTING |
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PROBLEM | CAUSE |
| SOLUTION |
Engine Will Not Start | No gasoline in fuel tank or | Fill the tank with gasoline, open fuel | |
3r HardToStart. | carburetor. |
| valve. |
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| Check fuel line and carburetor. |
| Water in gasoline or old fuel. | Drain fuel tank and carburetor. Use new fuel | |
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| and dry spark plug. |
| Chokedimproperly.Flooded | Open choke and crank engine several times to | |
| engine. |
| clear out the gas. |
| Dirty carburetor air filter | Remove and clean. | |
| Spark plug dirty | or improper | Clean, adjust the gap or replace. |
| gap. |
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| Spray gun closed. | Trigger spray gun. | |
ingine Misses Or Lacks | Partially plugged air filter. | Remove and clean. | |
’ower | Spark plug dirty, | wrong gap, | Clean, adjust the gap, or replace. |
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| or wrong type. |
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| Incorrect ignition | timing. | Time engine. |
Worn nozzle. |
| Replace with nozzle of proper size. | |
| Belt slippage. |
| Tighten or replace; use correct belts and replace |
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| both a t same time. |
| Air leak in inlet plumbing. | Disassemble,reseal, and reassemble. | |
| Relief valve stuck, partially plug- Clean, and adjust relief valve: check for worn | ||
| ged or improperly adjusted; | and dirty valve seats. Kit available. | |
| valve seat worn. |
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| Inlet suction strainer clogged or Clean. Use adequate size. Check more | ||
| improper size. |
| frequently. |
| Worn packing. Abrasives in | Install proper filter. Check flow available to | |
| pumped fluid or severe cavita- | pump. | |
| tion. Inadequate water supply. |
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| Fouled or dirty inlet or discharge Clean inlet and discharge valve assemblies. | ||
| galves. |
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| Worn inlet or discharge valves. | Replace worn va1ves;valve seats and/or | |
| Leaky discharge hose | discharge hose. | |
’ump runs extremely rough, ~ressure low.
Nater leakage from under he manifold.
Restricted inlet or air entering the inlet plumbing.
Inlet restrictions and/or air leaks. Stuck inlet or discharge valve.
LeakingH.P. seals.
Worn packing.
Proper size inlet plumbing; check for air tight seal.
Clean out foreign material, replace worn valves.
Replace seals.
lnsrall new packing.
Nater in pump crankcase. | May be caused by humid air |
| zondensing into water inside the |
| crankcase. |
Change oil at 3 month or 500 Hour intervals us- ing Graco Crankcase Oil (other approved oil every month or 200 hours) P.N.
