YK08-0028-DI-002-08
38
Trouble
Causes
Processing method
Reference
Abnormal noise
sounds.
1) Motor rotation direction
is reverse.
2) Cooling fan is touching.
3) Rattling sounds on
starting or stopping
the machine.
4) The oil is not circulating.
a) Oil pit of the Cover or
the like is clogged.
b) Oil distributor valve
has a trouble.
5) Vanes are not moving.
6) Panel screw is loose.
7) Oil is not filled.Oil is
under the lowerlimit of
the Oil levelgauge.
8)Foreign matter has
entered the pump.
9)Components inside
the pump have burnt out.
1) Do the connection again to
correct the rotation direction.
2) Check the Cooling fan
mount
and clear the error.
3) There is no particular
problem
as it’s a phenomenon
caused
by vanes that temporarily
make irregular motions.
4) Overhaul.
a) Clean the oil pit.
b) Check and repair the Oil
distributor valve.
5) Overhaul.
Wash out substances stuck
to
the vane.
6) Tighten the screw.
7) Overhaul
(Replacement
of
the
Cylinder,
Rotor and Cover)
8)Disassemble and clean
the pump to eliminate
foreign matter.
9) Overhaul
(replace the damaged
components).
3.5
6.2.7
6.4
6.4
6.2.6
3.2
6.2.2
6.4
6.4
