Annovi Reverberi SRMW Série Instructions D'utilisation page 12

Operating Instructions and Parts Manual
Plunger Pumps
Troubleshooting (cont.)
Symptom
Pump runs extremely
rough, pressure very low
Water leakage from
under manifold
Slight leak, oil leaking in
the area of crankshaft
Excessive play in the end
of the crankshaft pulley
Water in crankcase
Loud knocking noise in
pump
Possible Cause(s)
5 Worn packing. Abrasive in
pumped in cavitation. Inad-
equate water
6 Worn inlet, discharge valve
blocked or dirty
1 Inlet restrictions and/or air
leaks.
2 Stuck inlet or discharge valve
Worn packing or cracked
plunger
1 Worn crankshaft seal or
improperly installed oil seal
o-ring
2 Bad bearing
Worn main bearing from ex-
cessive tension on drive belt
1 Humid air condensing into
water inside the crankcase
2 Worn packing and/or cracked
plunger
1 Cavitation or sucking air
2 Pulley loose on crankshaft
3 Broken or worn bearing
5 Install proper filter suction at inlet
manifold must be limited to lifting
less than 20 feet of water or 8.5 psi
vacuum
6 Replace inlet and discharge valve
1 Clean out foreign material
2 Replace worn valves
Install new packing or plunger
1 Remove oil seal retainer and replace
damaged 0-ring and/or seals
2 Replace bearing
Replace crankcase bearing and/or
tension drive belt
1 Change oil intervals
2 Replace packing. Replace plunger
1 Check water supply is turned on
2 Check key and tighten set screw
3 Replace bearing
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SRMW Series Pumps
Corrective Action
When Quality Matters