Abnormal Oil Pressure - Bison BS-20KVA Operation Manual

Reason of failure
Oil pressure is zero or too low
1.
Excessively low oil level, giving rise
(1)
to poor or thin oil quality.
Broken oil pipe;oil leakage due to
(2)
loose pipe joint; damaged oil pressure
gauge.
(3) Deformation or breakage of pressure
adjustment spring of oil pump.
(4) Excessively large clearance of oil
pump.
(5) Broken oil pump gasket.
Excessively large clearance between
(6)
each bearing.
Plug screw of oil passage is loose and
(7)
leaked.
Oil pressure is too high
2.
Relief valve of oil pump is not
(1)
working properly, leading to poor oil
returning.
(2) Large oil viscosity due to low
temperature.
3. No oil reaching rocker arm shaft
(1) Blockage of oil holes for oil passage
of upper cylinder head and at the
bottom of seat for rocker arm shaft.

2. Abnormal oil pressure

(1)
Oil filling；replace with new oil.
(2)
Welding; tighten it securely; replacement.
(3)
Replacement.
(4)
Contact with factory to repair it;
replacement.
(5)
Replacement.
(6) Inspection, adjustment or replacement.
(7) Check for blockage.
(1)
Inspection and adjustment.
(2)
Use the designated oil grade and the
oil viscosity will be naturally dropped
after warming.
(1)
Clean and dredge.
36
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Troubleshooting