Stanley tp03, Руководство пользователя

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14
TROUBLESHOOTING
If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem.
When diagnosing faults in operation of the tool, always make sure the hydraulic power source is supplying the correct
hydraulic fl ow and pressure as listed in the table. Use a fl owmeter know to be accurate. check the fl ow with the hydraulic
fl uid temperature at least 80
o F/27 o C.
PROBLEM CAUSE SOLUTION
Pump will not start.
No hydraulic fl uid fl ow or pressure.
Turn on power unit and check that 7-9
gpm/26-34 lpm at 1500-2000 psi/105-140
bar is available at the trash pump.
Defective couplers.
Check the couplers by connecting them
together with the hydraulic power supply
operating and with the control valve in the
“ON” position. The power supply should
operate without “loading” from the cou-
plers.
Impeller jammed with debris. Clean the pumping chamber.
Impeller rubbing against wear plates. Check and adjust the impeller clearance.
Defective power module. Repair or replace the power module.
Poor pump performance.
Hydraulic fl ow reversed.
Check that the hoses are correctly con-
nected to the pump motor ports. The
female coupler should be connected to the
“IN” port. The return fl uid must never fl ow
through a reversing valve.
Improper hydraulic fl uid fl ow.
Check that 7-9 gpm/26-34 lpm at 1500-
2000 psi/105-140 bar is available at the
trash pump. A 20% decrease in fl ow can
result in a 50% decrease in pump perfor-
mance. 8 gpm/30 lpm is the best circuit
fl ow.
Trash pump submersed in sediment.
Lift the pump from the bottom of the hole
or chamber. Use a fl at support under the
pump if necessary.
Trash pump inlet restricted. Remove restriction and thoroughly clean.
Discharge hose kinked or restricted.
Straighten the hoes. If the hose must bend
at the top of the hole, use a piece of split
rigid conduit with large diameter of the
expanded hose. This keeps the hose from
kinking. Use a 90° 3-inch pipe elbow on
the trash pump outlet if necessary.
Discharge hose too small. Use a 3-inch diameter hose.
Water lift too high.
Lower the outlet end of the discharge
hose.
Impeller worn or damaged.
Check impeller for damage and excessive
wear. Replace if necessary.
Wear plates worn or damaged.
Check wear plates for damage and exces-
sive wear. Replace if necessary.
Hydraulic fl uid in discharge fl ow. Motor shaft seal failure.
Replace the motor shaft seal.
Ensure power unit is delivering 7-9
gpm/26-34 lpm