EBARA DSC4 - Manual (Page 9)

24
INSTRUCTION MANUAL Model DSC4
(4) Rotor
(a) After checking the oil, put your hand through the pump discharge and turn the impeller.
If it turns smoothly, the rotating components should be in satisfactory condition.
(b) If the impeller resists or feels locked, the pump requires overhaul.
6.3.3 Reinstallation
After the pump has been thoroughly inspected, reinstall it by reversing the lifting procedure.
If dirt is caught in the elbow, lift the pump back a little and operate pump for 2 or 3 seconds to
blow off the dirt.
6.4 Overhaul
Whenever the pump requires overhaul due to operational problems, poor insulation or as a
result of inspection, returns it to us for the job.
Pumps should be overhauled for general inspection every second year to prevent major troubles
even if there are no apparent problems.
(1) Cable disposition
When the pump is lifted for overhaul, it is necessary to disconnect all cables from the
control panel terminal board. At this time, if the cables are pulled out from the fl oor-level
elbow, reinstallation becomes diffi cult.
To prevent this, pull the cables with their ends tied with string. When the cables are put
back into their original position after overhaul, tie the cables ends again with the same
string and pull from the opposite side.
(2) Details of overhaul
Overhaul consists of the following work (to be done at our shop) :
(a) Complete disassembly, inspection and cleaning of pump.
(b) Inspection of starter coil and insulation test.
(c) Replacement of worn and damage parts.
(d) Functional tests.
(e) Performance tests. (If required)
6.5 Disassembly and Reassembly
WARNING: WHEN DISASSEMBLING THE PUMP, WARNING SIGNS MUST BE POSTED
NEARBY TO PREVENT MISOPERATION BY THIRD PARTIES. FAILURE TO OBSERVE THIS
PRECAUTION CAN RESULT IN DAMAGE OR SERIOUS ACCIDENTS.
WARNING: DURING PUMP DISASSEMBLY AND REASSEMBLY, ENSURE THAT THE
CABLES ARE DISCONNECTED AND ISOLATED FROM THE POWER SUPPLY.
09
INSTRUCTION MANUAL Model DSC4
Use one of the following
oils or equivalent.
Shell : Turbo oil T32
Mobil : Mobil DTE oil light
Esso : Esso Tresso 32
Exxon : Teresstic 32
Gulf : Harmony 32, Crest 32
Caltex : Rega Oil R&O 32
Table 1
PUMP
MODEL
MODEL
CODE
APPROX.
OIL CAPACITY
(LITER)
PUMP
MODEL
MODEL
CODE
APPROX.
OIL CAPACITY
(LITER)
150DSC4 AO-46075
2.4
300DSC4
FO-66060
FC-66060
2.4
150DSC4
AO-46060
AC-46060
300DSC4
FO-66050
FC-66050
150DSC4
AO-46050
AC-46050
300DSC4
GO-66075
GC-66075
2.3
150DSC4 BC-46120 2.4 150DSC4
HO-46075
HC-46075
3.2 150DSC4 BC-46100 3.1 150DSC4
HO-46060
HC-46060
150DSC4 CC-46145 3.2 150DSC4
HO-46050
HC-46050
250DSC4
EO-66145
EC-66145
3.9 250DSC4
EO-66125
EC-66125
250DSC4
EO-66100
EC-66100
Floor surface
Oil funnel
Turbine Oil ISOVG32
Fig. 9