APEC PUMP SSDM-10HP Series User manual

SSDM-10HP Series
Installation and operation manual

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Introduction
Thank you for selecting the SSDM construction dewatering pump.
This instruction manual explains the product operations and gives important
precautions regarding its safe use. In order to use the product to maximum
benefit, be sure to read the instructions thoroughly and follow them carefully.
To avoid accident, do not use the pump in any way other than as described
in this instruction manual especial on ! WARNING . . After reading this
instruction manual, keep it nearby as a reference in case questions arise
during use.
If this instruction manual should become lost or damaged, ask your nearest
dealer or representative for another copy.
Nameplate format
INDEX
Introduction………………..PAGE. 3
Nameplate format…….…..PAGE. 3
Prior to Operation…….…..PAGE. 4
Installation…………...…….PAGE. 5
Electrical Wiring……..…….PAGE. 6
Operation………………..…………..PAGE. 7
Maintenance…………………..…….PAGE. 7
Construction…………………………PAGE. 8
Troubleshooting……………………..PAGE.14
Disassembly and Assembly………..PAGE. 15

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ItemSpecifications
Liquid handled TypeSewage, waste water, miscellaneous drain water
RangePower Supply
Material
Pump Casing EN-GJL-200
ImpellerEnclosed
ShaftSUS410 stainless steel
Motor typeDry type submersible motor
Shaft seal lubrication oilR32 circulation oil
10HP (7.5kW) /Three phase / 2 Pole
Prior to Operation
Check the following points upon receipt of your pump:
Is the pump exactly what you ordered? Please confirm by checking nameplate. It is especially impor-
tant that you check whether the pump is to be used with 50 or 60 Hz.
Has any damage occurred during shipment? Are any bolts or nuts loose?
Have all necessary accessories been supplied? (For a list of standard accessories please see Con-
struction page.8)
We recommend that you keep a spare pump on hand in case of emergencies. Keep this instruc-
tion manual in a place for future reference.
Check the nameplate for your pump’s head (Hmax), volume (Qmax), speed (R.P.M), motor volt-
age and current.
Other specifications are noted in the chart as below.

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Type Discharge HP L.W.L.(mm)
4” 10 159
6” 10 159
SSDM
Installation
1. Check the following before beginning installation.
Insulation resistance measurement:
With the motor and cable (excluding the power supply cable) immersed in water, use a Megger to
measure the insulation resistance between ground and each phase of the motor, and again be-
tween each phase of the motor. The Megger should indicate an insulation resistance of not less
than 20mega ohms. While making the measurement, keep the power supply cable off the ground.
We recommend that an auxiliary pump be kept on hand in case of emergency.
2. Installation-
Under no circumstances should cable be pulled while the pump is being transported or installed.
Attach a chain or rope to the grip and install the pump.
This pump must not be installed on its side or operated a dry condition. Ensure that it is installed
upright on a secure base.
Install the pump at a location in the tank where there is the least turbulence.
If there is a flow of liquid inside the tank, support the piping where appropriate. Install piping so
that air will not be entrapped. If piping must be installed in such a way that air pockets are unavoid-
able, install an air release valve wherever such air pockets are most likely to develop.
Do not permit end of discharge piping to be submerged, as backflow will result when the pump is
shut down.
To maintain a safe operating water level, please see the C.W.L. (continuos water level) as below
for reference.

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Electrical Wiring
1.Wiring
A) Wire as indicated for the appropriate start system as shown in Fig-1 for three phase.
B) Loose connections will stop the pump. Make sure all electrical connections secure.
2.Cable
! WARNING : Never let the end of the cable contact water.
A) If the cable is extended, do not immerse the splice in water.
B) Fasten the cable to the discharge piping with tape or vinyl strips.
C) Install the cable so that it will not overheat. Overheating caused by coiling the cable
and exposing it to direct sunlight.
3.Grounding
To ground the green wire (label G). Under no circumstances should the green wire
be connected to the power supply.
4. WARNING : Use short circuit breakers to prevent danger of electrical shock.
Fig-1

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Operation
1. Before starting the pump
1). After completing installation, measure the insulation resistance again as described in
installation.
2). Check water level.
If the pump is operated continuously for an extended period of time in a dry condition or at the low-
est water level, the motor protector will be activated. Constant repetition of this action will shorten
pump service life. Do not start the pump again in such a situation until after the motor has com-
pletely cooled.
2. Test operation
Non-automatic pump
1). Turn the operating switch on and off a couple of times to check for normal pump start.
2). Next, check direction of rotation. If discharge volume is low or unusual sounds are heard when
the pump is operating, rotation has been reversed. When this happens, reverse two of the wires.
Maintenance
Check pressure, output, voltage, current and other specifications. Unusual readings may indicate. Refer
to Troubleshooting and correct as soon as possible.
1. Daily inspections
Check current and ammeter fluctuation daily. If ammeter fluctuation is great, even though within the
limits of pump rating, foreign matter may be clogging the pump. If the quantity of liquid discharged
falls suddenly, foreign matter may be blocking the suction inlet.
2. Regular inspections
a. Monthly inspections
Measure the insulation resistance. The value should be more than 1M ohm. If resistance starts to fall
rapidly even with an initial indication of over 1M ohm, this may be an indication of trouble and repair
work is required.
b. Annual inspections
To prolong the service life of the mechanical seal by replacing the oil in the mechanical seal chamber
once a year. Water mixed the oil or cloudy textures are indications of a defective mechanical seal re-
quiring replacement. When replacing the oil, lay the pump on its side with filler plug on top. Inject suit-
able amount turbine oil No.32 (ISO VG-32)
.
c. Inspections at 3-5year intervals
Conduct an overhaul of the pump. These intervals will preclude the possibility of future trouble.
3. Parts that will need to be replaced
Replace the appropriate part when the following conditions are appear
Note: above replacement schedule is based on normal operating conditions.
Replaceable part Mechanical seal Oil plug O-ring Lubricating oil O-ring
Condition Oil in mechanical seal chamber is
clouded Inspect or replace the oil Oil is clouded or dirty Overhaul the pump
Frequency Annually Half a year Half a year Annually

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Construction
SSDM 10HP

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No Name Material No Name Material
1 Discharge A356 25 Stator
2 Upper Cover A356 26 Mechanical Seal Upper: CA/CE
Lower: SIC/SIC
3 Motor Cover A356 27 Oil Seal NBR
4 Lower Bearing Bracket EN-GJL-200 28 Shaft Sleeve SUS304
5 Pump Casing EN-GJL-200 29 Key SUS304
6 Impeller High Chrome Steel 30 Insulation Sheet Bakelite
7 Suction Plate EN-GJS-700 31 Cable Clamp SUS304/NBR
8 Base Plate A356 32 Cable Clamp Hanger SUS304
9 Strainer SUS304 33 Hex Screw SUS304
10 Handle SUS304 34 Nut SUS304
11 Outer Casing SUS304 35 Socket Screw SUS304
12 Motor Frame A356 36 Screw & Flat Washer SUS304
13 Discharge Gasket NBR 37 Headless Socket
Screw & Nut SUS304
14 Outer Casing Gasket NBR 38 Phillips Screw SC
15 Upper Cover Gasket NBR 39 Hex Screw & Spring
Washer SUS304
16 O-Ring NBR 40
Hex Screw & Spring
Washer SUS304
17 O-Ring NBR 41 Bearing Cover SC
18 O-Ring NBR 42 Hex Screw SC
19 Gland Holder A356 43 Oil Plug SUS304
20 Protector YAMADA 44
Socket Screw & Spring
Washer SUS304
21 Wave Washer SC 45 Spring Washer SUS304
22 Flat Washer SC 46 Nut SUS304
23-1 Upper Bearing NTN 6305 47 Double End Stud Bolt &
Spring Washer SUS304
23-2 Lower Bearing NTN 6308 48 Spring Washer/Nut SUS304
24 Shaft with Rotor SUS410

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Troubleshooting
Trouble Cause Remedy
Does not start.
Starts, but imme-
diately stops.
(1) Power failure (1)~(3) Contact electric power company and
devise counter-measures
(2) Large discrepancy between power source and voltage
(3) Significant drop in voltage
(4) Motor phase malfunction (4) Inspect electric circuit
(5) Electric circuit connection faulty (5) Correct wiring
(6) Faulty connection of control circuit (6) Inspect connections and magnetic coil
(7) Fuse is blown (7) Check circuit then replace fuse
(8) Faulty magnetic switch (8) Replace with correct one
(9) Water is not at level indicated by Float (9) Raise water level
(10) Float is not in appropriate level (10) Adjust the position of float
(11) Float is not effective (11) Repair or replace
(12) Short circuit breaker is functioning (12) Repair location of short circuit
(13) Foreign matter clogging pump (13) Remove foreign matter
(14) Motor burned out (14) Repair or replace
(15) Motor bearing broken (15) Repair or replace
Operates, but
stops after a
while.
(1) Prolonged dry operation has activated motor protector
and caused pump to stop (1) Raise water level to C.W.L
(2) High liquid temperature has activated motor protector
and caused pump to stop (2) Lower liquid temperature
(3) Reverse rotation ! WARNING : (3) Correct rotation
Does not pump.
Inadequate vol-
ume.
(1) Reverse rotation (1) Correct rotation (see Operation)
(2) Significant drop in voltage (2) Contact electric power company
(3) Operating a 60Hz pump with 50Hz (3) Check nameplate
(4) Discharge head is high (4) Recalculate and adjust
(5) Large piping loss (5) Recalculate and adjust
(6) Low operating water level causes air suction (6) Raise water level or lower pump
(7) Leaking from discharge piping (7) Inspect, repair
(8) Clogging of discharge piping (8) Remove foreign matter
(9) Foreign matter in suction inlet (9) Remove foreign matter
(10) Foreign matter clogging pump (10) Remove foreign matter
(11) Worn impeller (11) Replace impeller
Over current (1) Unbalanced current and voltage (1) Contact electric power company
(2) Significant voltage drop (2) Contact electric power company and
devise counter-measure
(3) Motor phase malfunction (3) Inspect connections and magnetic
switch
(4) Operating 50Hz pump on 60Hz (4) Check nameplate
(5) Reverse rotation ! WARNING : (5) Correct rotation (see Operation2)
(6) Low head. Excessive volume of water (6) Replace pump with high head pump
(7) Foreign matter clogging pump (7) Remove foreign matter
(8) Motor bearing is worn out or damaged (8) Replace bearing
Pump vibrates;
excessive oper-
ating noise.
(1) Reverse rotation (1) Correct rotation
(2) Pump clogged with foreign matter (2) Disassemble and remove foreign matter
(3) Piping resonates (3) Improve piping
(4) Strainer is closed too far (4) Open strainer

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1. Disassembly-
When disassembling pump, have a piece of cardboard or wooden board ready to place the
different parts on as you work. Do not pile parts on top of each other. They should be laid out
neatly in rows. The “O” ring and gasket cannot be used again once they are removed. Have
replacement parts ready. Disassemble in the following order, referring to the sectional view.
Be sure to cut off power source beginning disassembly.
(1) Remove pump casing bolts, raise the motor section and remove pump casing.
(2) Remove shaft head bolt and impeller.
(3) Remove oil filler plug and drain lubricating oil.
(4) Remove intermediate casing bolts and intermediate oil chamber.
(Remember that any lubricating oil remaining in the mechanical seal chamber will flow out.)
(5) Carefully remove mechanical seal, taking care not to scratch sliding surface or motor shaft.
2. Assembly-
Re-assemble in reverse order of disassembly.
Be careful of the following points.
(a) During re-assembly, rotate the impeller by hand and check for smooth rotation. If rotation is
not smooth, perform steps-(3) through -(5) again.
(b) Upon completion of re-assembly step -(1) rotate the impeller by hand from the suction the
suction inlet and check that it rotates smoothly without touching the suction cover before op-
erating the pump.
Please order O-rings, packing, shaft seals and other parts from your dealer.
Disassembly and Assembly

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Vol.PMSSDM10‐19101