8
8. Displacement for impeller and seal ring of power output shaft.
8.1 Displacement of impeller
a
、
remove lifting handle(Reference to content table for spare parts no.22—loosen
parts.no.21 NUT M8 and no.20 washer );
b
、
Remove the Socket head screw (Reference to content table for spare parts
no.22),after that,remove the whole power device.
c
、
Remove socket head screw (Reference to content table for spare parts no.13)
and pressing sleeve of impeller (Reference to content table for spare parts no.14)
d
、
Knocked off output shaft of hydraulic motor lightly from impeller by plastic
rammer or rubber rammer.
e
、
Displace impeller: re-assemble according with opposite procedure with above.
–Be careful that don’t forget the spling of power output shaft.
8.2.
Displacement for seal ring of power output shaft.
a
、
Remove impeller from pump power output shaft according with the method of
displacing impeller.
b
、
Remove internal circlip which fastened seal ring from hydraulic motor by
internal circlip plier
c
、
Connecting oil pump, power device with hydraulic power input pipe,
Connecting output oil pipe with oil pump but not with hydraulic power device.
d
、
Switch off the key of hydraulic oil output from hydraulic power device,Start
the hydraulic power device.
e
、
Switch on the key of hydraulic oil output from hydraulic power device
slowly,observe the sealed situation for the hydraulic motor output shaft of trash
pump.(due to sealed outlet of hydraulic motor, the seal ring will be squeezed
out by the pressure of hydraulic motor which caused by pressure of oil in),when
seal ring squeezed out, switch off the key of hydraulic oil output from
hydraulic power device meanwhile close hydraulic power device.
f
、
displace seal ring.
g
、
Install internal circlip
h
、
Replace impeller
i
、
Replace trash pump
