ECH2O Tec. 200-AMS-1, Owner'S Manual

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HIGH PRESSURE PUMP SYSTEM
TROUBLESHOOTING GUIDE
MALFUNCTION
CAUSE
REMEDY
The Pressure and/or the product
amount drops Worn packing seals
Broken valve spring
Belt slippage
Fouled inlet strainer
Fouled pre-filter(s)
Cavitation
Replace packing seals
Replace spring
Tighten or replace belt
Clean strainer
Replace filter cartridge(s)
Check suction lines for restrictions
Water in crankcase High temperature fluctuation
High humidity
Worn seals
Replace oil
Reduce oil change interval
Replace seals
Noisy operation Worn bearings
Cavitation
Replace bearings, refill crankcase with
recommended lubricant
(SAE 90 gear box oil, non detergent)
Check inlet lines for restrictions and/or
proper size.
Check strainer and filter(s)
Inability to build up pressure Discharge valve chamber has air
trapped within it Allow more time to prime and ensure
that there are no air suction leaks.
Rough/Pulsating operation with
pressure drop Worn packing
Inlet restriction
Cavitation Replace packing
Check system for restrictions or air
leaks.
Check inlet lines for restrictions
Excessive leakage between the
high pressure pump manifold
and rear crankcase section Worn plunger(s)
Worn packing seals
Cracked plunger(s)
Replace plunger(s)
Replace packing seals
Replace plunger(s)
High crankcase temperature
(higher than 78
°
C)
Wrong grade of oil
Improper amount of oil in
crankcase
Use specified type of oil.
Adjust oil level to proper amount