FCI Watermakers MAX-Q+, User Manual & Installation Manual

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FCI WATERMAKERS, INC. 128 Troubleshooting
HIGH PRESSURE PUMP TROUBLESHOOTING GUIDE
(continued)
Problem Probable Cause Solution
OIL LEAK
• Crankcase oil seals.
• Crankshaft oil seals
and o-rings.
• Drain plug
• Bubble gauge
• Rear Cover
• Filler cap
Worn crankcase oil seals. Replace crankcase oil seals.
Worn crankshaft oil seals or
o-rings on bearing cover.
Remove bearing cover and
replace o-rings and/or oil seals.
Loose drain plug or worn
drain plug o-ring.
Tighten drain plug or replace o-ring.
Loose bubble gauge or worn
bubble gauge gasket.
Tighten bubble gauge or replace gasket.
Loose rear cover or worn
rear cover o-ring.
Tighten rear cover or replace o-ring.
Loose filler cap or excessive
oil in crankcase.
Tighten filler cap.
Fill crankcase to specified capacity.
PUMP RUNS
EXTREMELY ROUGH
• Inlet conditions
• Pump valves
• Pump seals
Restricted inlet or air
entering the inlet plumbing.
Correct inlet size plumbing. Check for air tight seal.
Stuck inlet/discharge valves. Clean out foreign material or install new valve kit.
Leaking V-Packings or
Lo-Pressure seals.
Install new seal kit. Increase frequency of service.
PREMATURE SEAL FAILURE Scored plungers. Replace plungers.
Over pressure to
inlet manifold.
Reduce inlet pressure per specifications.
Abrasive material in the
liquid being pumped.
Install proper filtration at pump inlet and clean regularly.
Excessive pressure and/or
temperature of pumped liquid.
Check pressure and inlet liquid temperature. DO
NOT RUN PUMP WITHOUT LIQUID.
Running pump dry. Increase hose one size larger than inlet port size. Pressurize.
Starving pump of
adequate liquid.
Increase hose one size larger than inlet port size. Pressurize.
Eroded manifold. Replace manifold. Check liquid compatibility.
Table 4: High Pressure Pump Troubleshooting Guide (continued)