DIVEX MHE-02, Installation, Operating And Maintenance Manual

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Chapter 5
KI-OM-523 R2
Oil leak between
crankcase and
pumping section Worn crankcase piston rod
seals. Replace crankcase piston rod
seals.
Oil leaking in the
crankshaft area Worn crankshaft seal or
improperly installed oil seal
retainer o-ring. Remove oil seal retainer and
replace damaged o-ring and/or
seals.
Worn bearing. Replace bearing.
Excessive play on
the crank shaft
pulley Worn main bearing from
excessive tension on drive
belt. Replace bearing. Properly
tension belt.
Water in crankcase May be caused by humid air
condensing into water inside
the crankcase. Change oil at 3 month or 500
hour intervals using Divex part
no. DO03764.
Leakage of packing seals.
Over-pressure or faulty
pressure regulator. Replace packing. Check
pressure regulator.
Oil leaking from
underside of
crankcase Worn crankcase seals. Replace seals.
Oil leaking at the
rear portion of the
crankcase Damaged or improperly
installed oil gauge or
crankcase rear cover o-ring,
and drain plug o-ring. Replace oil gauge or cover o-
ring and drain plug o-ring.
Oil leaking from
drain plug Loose drain plug or worn drain
plug o-ring. Tighten drain plug or replace
o-ring.
Loud knocking
noise in pump Pulley loose on crankshaft. Check key and tighten set
screw.
Broken or worn bearing. Replace bearings.
Frequent or
premature failure of
the inlet manifold
seals Scored plungers. Replace plungers.
Over pressure to inlet
manifold. Reduce inlet pressure per
instructions.
Damaged or worn plungers. Replace the plungers.
Abrasive material in the fluid
being pumped. Install proper filtration on
pump inlet plumbing.
Excessive pressure and/or
temperature of fluid being
pumped. Check pressures and fluid inlet
temperature; be sure they are
within specified range.
Over pressure of pumps. Reduce supply pressure.
Running pump dry. Do not run pump without
water.
PROBLEM POSSIBLE CAUSE SOLUTION