DPS TS-50 User manual

TS-TSH
instructions
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Disconnect all power sources to ensure the pump will remain inoperative
Allow the pump to cool before starting maintenance
Close the suction and discharge valves if fitted
Vent the pump slowly and cautiously
Drain the pump
When working near the pump, dress appropriately, avoid baggy or loose
items which could get caught in moving parts. Always wear safety clothing,
gloves, safety glasses, helmet etc.
This pump is designed to handle mild industrial corrosives, mud and slurries
containing solids. Do not attempt to pump volatile, corrosive or flammable
liquids that may damage the pump or endanger personnel.
Use lifting and moving equipment with ample capacity and in good repair.
Remove all suction and discharge piping before lifting.
Do not remove any items from an overheated pump. Pressure build up
within the pump can cause parts being disengaged to be ejected with force.
Allow the pump to cool before commencing any maintenance.
Do not operate the pump with a closed discharge valve for any length of
time. Running the pump in this configuration could cause the liquid to boil
and cause the pump casing to explode.
Do not operate the pump without all guards in place over rotating parts.
After the pump has been positioned make sure all the pump mountings and
any fixtures are properly secured and supported before operation.
Safety Warning
1.
2.
3.
4.
5.
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Pump Features:
PRIMING IS DONE AUTOMATICALLY
After initial priming TS Series Pumps are designed to re-prime
automatically in a completely open system, without the need of a discharge or suction check
valve. This can be achieved with the pump casing only partially filled with liquid and with a
completely dry suction line. The TS’s ability to handle air overcomes priming and vapour
handling problems common in conventional centrifugal pumps.
EXTERNAL SHIMLESS ADJUSTMENT
The external shimless cover plate allows for easy adjustment of clearance between the
impeller and the wear plate. This eliminates the need to re-align belts and couplings etc. The
collar and adjusting screw allow for incremental adjustments of the wear plate clearance.
Once the adjustments have been made, the collar locks into place maintaining the clearance
settings even if the cover plate is removed.
SOLIDS HANDLING IMPELLER
Two-vane, semi-open, solids handling impeller handles up to 3” dia solids, depending on the
pump model. Pump out vanes on the impeller shroud reduce the build-up of foreign material
behind the impeller and reduce pressure on the seal.
REMOVABLE COVERPLATE
The removable cover plate provides quick and easy access to the pump interior without
disconnecting the piping. Clogs and blocking material fibre can be removed and the pump
returned to service within minutes. The impeller, seal, wearplate and flap valve can also be
accessed through the cover plate opening.
ABRASIVE HANDLING MECHANICAL SEAL
Double floating, self-aligning, oil lubricated mechanical cartridge seal with stationary and
rotating face of silicone carbide
REMOVABLE ROTATING ASSEMBLY
Back pull out removal of the rotating assembly allows for easy inspection of the pump shaft or
bearings without disturbing the pump casing or pipe work. Simply remove the bolts for the
back of the pump and the rotating assembly slides out
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DPS TS Series Trash & Sewage pumps are designed for economical and trouble-free operation
in handling solids-laden liquids. Pumps feature a large volute design which allows them to re-
prime automatically in a completely open system without the need of suction or discharge
check valves. This is workable with the pump only partially filled with liquid and a completely
dry suction line. Pumps will be able to handle up to 3” (75mm) spherical solids, depending on
the pump model. In case that the pump shaft or bearings need service or repair, the entire
rotating assembly can be back pulled out without disturbing the pump casing or pipe work.
Rotating assembly is sealed with an o-ring, allowing for external adjustments of the impeller to
wear-plate clearance.

Disassembly and Assembly
Front Cover Wear Plate Removal
The wear plate is easily accessible and may be serviced by removing the front cover assembly
Before attempting to service the pump remove the pump casing drain plug and drain the
pump.
Clean and reinstall the drain plug.
Remove the tighten handles and pull front cover and assembled wear plate from the pump
casing.
Inspect the wear plate, and replace if scored or worn. To remove the wear plate, undo the nut.
Inspect the front cover o-ring and replace if worn or damaged.
Check Valve Removal
If the check valve assembly requires to be serviced, remove the check valve pin and reach
through the front cover opening and remove the complete assembly from the suction flange.
Rotating Assembly Removal
The rotating assembly may be removed without disconnection of the suction and discharge
piping; however the engine and spacer coupling and stubshaft must be removed to provide
clearance.
The impeller should be loosened whilst the rotating assembly is still mounted to the pump
casing.
Before loosening the impeller, remove the seal cavity drain plug (square headed) and drain the
seal lubricant. This will prevent the oil in the seal cavity escaping when the impeller is
loosened. Dispose of seal oil lubricant in accordance with your local regulations.
Clean and reinstall the seal cavity drain plug. Remove the impeller cap-screw and washer
NOTE: do not remove the impeller until the rotating assembly has been removed from the
pump casing.
Remove bolt and washer holding the rotating assembly to the pump casing.
Separate the rotating assembly by pulling straight out of the pump casing
Removing the Impeller
With the rotating assembly removed from the pump casing, unscrew the impeller from the
shaft.
Beware when unscrewing the impeller; tension on the shaft seal spring will be released as the
impeller is removed.
Inspect the impeller for damage or wear and replace if necessary.
Seal Removal
Slide the integral shaft sleeve and rotating portion of the seal off the shaft as a unit.
Use a pair of stiff wires with hooked ends to remove the stationary element and seat.
An alternate method of removing the stationary seal components is to remove the screws and
separate sealing seat and sealing washer from bearing housing.
Position the seal plate on a flat surface with the impeller side down.
Press down on the back of the stationary seat until the seat, o-rings and stationary element
can be removed.
A new seal assembly should be installed anytime the old seal is removed from the pump.
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Shaft and Bearing Removal
Remove the bearing housing drain plug and drain the oil lubricant.
Dispose of all oil in accordance with your local regulations.
Clean and reinstall the drain plug.
Undo the housing bolts and slide off bearing gland and oil seal off the shaft.
Remove the oil seal from the bearing cap.
Remove bearings from the bearing housing.
Inspect shaft, bearings and oil seal for damage and replace if necessary.
It is recommended you replace the oil seal and bearings when you have dismantled the pump
to this stage.
Shaft and Bearing Fitment
Clean the bearing housing, shaft and all components (except bearings).
Press the new bearings on to shaft. Slide the shaft and assembled bearings into the bearing
housing until the outer ring of the bearing seats against the bearing housing.
Press the oil seal into the bearing gland with the spring on the oil seal facing the oil side.
Replace the bearing cap gasket and secure the bearing cap with bolts.
Lubricate the bearing housing with SAE-30 oil. Check oil level through site gauge whilst filling.
Fill over site glass
Seal Installation
Clean the seal cavity and shaft. Inspect the stationary seat bore in the seal plate for dirt, nicks
and burrs. Remove any that may exist.
A new seal assembly should be installed anytime the old seal is removed from the pump.
If the sealing seat was removed, install the sealing seat gasket.
Position the sealing seat over the shaft and secure it to the bearing housing with bolts and
washers.
For ease of installation of the seal, lubricate the shaft sleeve and external stationary seat o-
ring with small amount of oil. Slide the seal assembly onto the shaft until the external
stationary seat o-ring engages the bore in the seal plate
Clean and inspect impeller (refer Impeller Installation).
Install the full set of impeller shims provided with the seal, and screw the impeller onto the
shaft until it is seated against the seal.
Continue to screw the impeller onto the shaft. This will press the stationary seat into the seal
plate bore. As the stationary seat becomes fully seated the seal spring compresses, and the
shaft sleeve will break the nylon shear ring. This allows the sleeve to slide down the shaft until
seated against the shaft shoulder.
Continue to screw the impeller on to the shaft until the impeller, shims and sleeve are fully
seated against the shaft shoulder.
Measure the impeller to seal plate clearance and remove impeller shims to obtain the proper
clearance as described in impeller installation and adjustment.
Lubricate the seal assembly with SAE30 oil. Fill cavity with lube oil.

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Impeller Installation
The shaft impeller threads must be totally clean before installing the impeller. The slightest
amount of dirt on the threads can cause the impeller to seize to the shaft, making future
repairs difficult.
Install the same thickness impeller shims as previously removed.
Apply Bostik Never –Seize or equivalent to the shaft threads and screw the impeller onto the
shaft until tight. Be sure the seal spring seats squarely over the shoulder on the back of the
impeller.
A clearance of 0.010 to 0.020 inch (0.25 to 0.50mm) between the seal seat is recommended
for maximum pump efficiency.
Measure the clearance and add or remove shims to suit.
Before installing the impeller cap screw and washer the rotating assembly must be installed in
the pump casing in order to torque the impeller cap screw.
After the rotating assembly is installed in the pump casing, coat the cap screw with 242
Loctite and install the impeller washer and cap screw; Torque the cap screw to 90 ft/lbs.
Check Valve Installation
Reach through the front cover opening with the check valve and position the check valve
adaptor in the mounting slot in the suction flange.
Align the adaptor with the flange hole and secure with check valve pin.
Front Cover Installation
If the wear plate was removed for replacement, carefully centre it on the front cover and
secure it with screw and washer.
The wear plate must be concentric to prevent binding when the front cover in installed.
Replace the front cover o-ring.
Slide the front cover assembly into the pump casing being sure the wear plate doesn’t bind
against the impeller.
Secure the front cover assembly by tightening the tighten handles (14) evenly.
Do not over tighten the tighten handles, they should be just tight enough to ensure a good
seal.
Be sure the wear plate doesn’t bind against the casing.
Rotating Assembly Installation
Install the bearing housing and seal seat o-rings.
Slide the rotating assembly into the pump casing into the pump.
Install the adjusting screws using the same thickness as removed.
Secure the rotating assembly to the pump casing
Do not fully tighten until the back cover has been set.
A clearance of .010 to .020 inch between the impeller and the wear plate is also
recommended. This clearance can be obtained by adjusting an equal amount of screw from
each rotating assembly screw set until the impeller scraps against the wear plate when the
shaft is turned. After the impeller scraps , adjust approximately 0.15 inch of clearance with the
adjusting screws.
Lubrication
Use SAE-30 oil for the seal assembly and bearing housing lubrication

Standard
A
B
C
D
E
F
G
H
J
K
L
M
TS-50
522
318
54
163
248
154
38.1
104
621
70
281
310
TS-80
658
432
76.2
230
284
190
38.1
103
741
70
394
438
TS-100
744
492
75
280
292
217
38.1
126
836
70
450
500
TS-150
889
568
70
280
283
253
38.1
126
884
70
528
580
TS-200
1075
726
102
305
410
330
44.5
170
1025
0
635
700
TS-80H
659
432
76.2
227
283
190.5
38.1
100
721
69.8
393.6
437
TS-100H
745
490
96.8
280
297
222
38.1
126
817
69.8
457
510
TS-150H
883
658
77.7
280
336
257
44.45
117
945
69.8
527
510
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DIMENSIONAL DATA

1
IMPELLER
11
PUMP SHAFT
2
SEALING WASHER
12
OIL SEAL
3
MECHANICAL SEAL
13
BEARING
4
BEARING
14
SITE GLASS
5
BREATHER
15
ADJUSTING WASHER
6
BREATHER
16
O-RING
7
BOLT
17
BOLT
8
LOCK WASHER
18
WASHER
9
BEARING GLAND
19
SEAL SEAT
10
KEY
20
1
PEDESTAL ASSY
14
TIGHTEN HANDLE
2
NAME PLATE
15
BOLT
3
PUMP CASING
16
NUT
4
DISCHRGE WASHER
17
WASHER
5
BOLT
18
VENT VALVE
6
WASHER
19
O-RING
7
DISCHARGE OUTLET
20
PLUG
8
PLUG
21
WEAR PLATE
9
SUCTION WASHER
22
BOLT
10
PIN FLAP VALVE
23
WAHER
11
SUCTION INLET
24
SEAL COVER
12
FLAP VALVE
25
LOCKING HANDLE
13
FRONT COVER
26
SCREW PLUG
27
LOCKING PLATE
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PARTS LIST
PEDESTAL
PUMP BODY

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Troubles
Causes
Pump fails to prime
Not enough water in casing
Check valve damaged
Air leak in suction line
leaking or worn seal
Suction lift to high
Strainer clogged
Pump fails to deliver rated
flow or pressure or stops
Air leak in suction line
Leaking or worn seal
Strainer clogged
Suction line not submerged or water level to low
Impeller clogged
Pump speed to slow
Discharge head to high
Suction lift to high
Pump requires to much
power
Pump speed to high
Discharge head to low
Pumped product to thick
Bearings failed
Pump clogs frequently
Liquid is to thick
Discharge flow to slow
check valve shut or clogged
Noise and vibration
Cavitation in pump
Air in system
drive not aligned properly
TROUBLE SHOOTING
Please note all information contained in this publication is a guide only

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