KIRLOSKAR RKB Programming manual

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Revision: 00
INSTRUCTIONS ON
INSTALLATION,
OPERATION AND
MAINTENANCE FOR
KIRLOSKAR PUMP
TYPE RKB (MULTIOUTLET)
KIRLOSKAR BROTHERS LIMITED
‘YAMUNA’ Survey No. 98/ 3 to 7, Baner, Pune –411045, India.

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WARRANTY
We warrant that the pump supplied from us is free from defective material and faulty
workmanship. This warranty holds good for a period of 12 months from the date of
commissioning the equipment or 18 months from the date of dispatch from our
factory, whichever is earlier. Our liability in respect of any complaint is limited to
replacing part/parts free of charge ex-works or repairs of the defective part/parts only
to the extent that such replacement/repairs are attributable or arise solely from faulty
workmanship or defective material.
This warranty holds good only for the products manufactured by us.
KIRLOSKAR BROTHERS LIMITED

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CONTENTS:
1. GENERAL 3 to 4
2. SAFETY INSTRUCTIONS 4 to 7
3. EQUIPMENT SCHEDULE 7 to 8
4. OPERATION 8 to 9
5. TECHNICAL DATA 9 to 15
6. PREVENTIVE MAINTENANCE 15 to 16
7. OVERHAULING 16 to 30
8. SPARE PARTS LIST AND CROSS-SECTIONAL DRAWING. 31 to 47
PLEASE FURNISH PUMP TYPE, NAME OF THE PART, PART NUMBER, MATERIAL
OF CONSTRUCTION AND OTHER NAMEPLATE DETAILS WHILE ORDERING SPARE
PARTS FOR THE PUMP.
Note: A copy of General instructions for installation, operation &
maintenance of ‘Kirloskar pumps’ is attached at the end of this manual.
1. GENERAL:
1.1 The booklet covers instructions for cold model of multioutlet pumps.
RKB 40/12L
RKB 40/14H
RKB 65/19
RKB 100/23E
RKB 125/27
RKB 125/30
RKB 150/34

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1.2 Cold Models pumps (without stuffing box cooling arrangement) are
supplied for liquid having temperature up to 90°C.
1.3 Pumps when properly installed and given due care in operation and
maintenance should operate satisfactorily for a long period of time.
1.4 When the pump is received, sometime before the actual use of pump, it
should be inspected and located in dry place. The shaft should be rotated
once in a month to prevent pitting of bearing surfaces.
2. Safety Instructions:
2.1 General Information
Please read the manual thoroughly prior to installation of unit. The Health and
Safety instructions shall be read and fully understood. The instructions in this
document shall also be read and fully understood.
Whenever the equipment is operated, maintained or used in any way, the
procedures detailed within the Health and Safety Dossier (DHS) and any
procedures detailed within this instructions manual shall be followed. The
pump supplied by Kirloskar Brothers Limited (KBL) has been designed with
safety in mind, where hazards cannot be eliminated; the risk has been
minimized by the use of guards and other design features. Some hazards cannot
be guarded against and the instructions below MUST BE COMPLIED WITH for
safe operation. These instructions cannot cover all circumstances. It is the
responsibility of the user of the equipment for maintaining safe working
practices at all times.
2.1.1 KBL products are designed for installation in designated areas, which are to be
kept clean and free of obstructions that may restrict safe access to the
controls and maintenance access points.
Pump nameplate is fitted to each unit and must not be
removed. Loss of this plate could make identification impossible. This in turn
could affect safety and cause difficulty in obtaining spare parts. Such accidental
loss or damage if occur, contact KBL immediately.
2.1.2 Access to the equipment should be restricted to the personnel responsible for
installation, operation and maintenance and they must be qualified, adequately
trained and supplied with the appropriate tools for their respective tasks.
2.1.3 KBL firmly insists that all personnel responsible for installation, operation and
maintenance of the equipment must read the manual before any work is done.

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2.1.4 Ear defenders should be worn where the specified equipment
noise level exceeds locally defined safe levels. Safety glasses or goggles should
be worn where working with pressurized systems and hazardous substances.
Other personal protection equipment must be worn where local rules apply.
2.2 DO NOT wear loose or frayed clothing or jewellery, which
could catch on the controls or becomes trapped in the equipment.
2.3 Operation of the equipment for the application other than for which it is
supplied can increase the risk from hazards. Please consult KBL before making
such change in the application of the equipment.
2.4 Improper installation, operation and maintenance of the product supplied by KBL
could result in injury or death.
2.5 Within the manual, safety instructions are marked with safety symbols
Hazard.
This symbol refers to general mechanical aspects of safety.
Hazard.
This symbol refers to electrical safety.
This symbol is used to introduce safety instructions, non-
observance for which may lead to damage to the machine and its
functions.
2.6 Transport Handling and Storage Instructions:
2.6.1 Transport.
Pumps are dispatched in duly assembled condition. Lubricating oil in the bearing
housing is drained prior to dispatch of pump. Pumps are protected against
corrosion and packed for transport by normal road, rail and sea carriers.

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2.6.2 Handling.
Crushing Hazard.
When lifting the pump or pump set, use lifting equipment having a safe working
load rating suitable for the weight specified. Use suitable slings for lifting any
pump not provided with lifting points.
The use of suitable fork lift truck and four chain crane sling equipment is
recommended but locally approved equipment rating may be used.
Pump should be slung as shown.
Pump set must be lifted from the lifting holes provided using
suitable four chain lifting equipment.

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2.6.3 Storage.
2.6.3.1 Temporary Storage for up to six weeks.
If the pump unit is not to be used immediately it should be stored carefully in a
horizontal position, in a sheltered, dry location.
Additional rust preventive should be applied to all unpainted
carbon steel or cast iron parts and should not be removed until final installation.
Shearing Hazard.
Do NOT place fingers or hands, etc., into the suction or discharge pipe outlets
and do NOT touch the impeller, if rotated, may cause severe injury. To prevent
ingress of any object, retain the protection covers or packaging in place until
removal is necessary for installation.
Fill the bearing housing with recommended oil/grease to
ensure that the shaft and bearings remain rust free.
2.6.3.2 Exposed or Extreme Conditions Storage.
For exposed storage or extreme variants in atmospheric or environmental
conditions, please refer to KBL for special storage instructions to suit the
conditions acceptable.
3. Equipment Schedule:
3.1 Installation:
3.1.2 For location, preparing foundation, installation, alignment, piping, general
maintenance, trouble shooting, etc., the instructions given in our publication –
’GENERAL INSTRUCTIONS FOR INSTALLATION OPERATION AND
MAINTENANCE OF KIRLOSKAR CENTRIFUGAL PUMPS’ which is also printed
along this booklet must be followed very carefully.
3.1.3 MOUNTING AND ALIGNMENT
A jaw-flex type coupling is used to connect pump shaft to the driver. Follow the
instructions as shown below.
3.1.4 ALIGNMENT
ALWAYS REMEMBER “A FLEXIBLE COUPLING IS NOT A UNIVERSAL JOINT”.
Correct alignment is essential for the smooth operation of the pump. There are
two types of misalignment between the pump shaft and the drive shaft, which
are:

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1) Angular misalignment –Shaft with axis concentric, but not parallel.
2) Parallel misalignment –Shaft with axis parallel, but not concentric.
This misalignment is checked by using a straight edge as shown in figure given
above. Correct as STEEL STRAIGHT EDGE in above sketch.
3.1.5 Before commissioning the pump set, please ensure:
1) The pipe connections are flushed and tightened properly.
2) Alignment is proper.
3) Auxiliary piping connections such as sealing connections, cooling
connections, etc., are made. Details of sealing liquid are given in our
supply order.
4. OPERATION:
4.1 Before starting the pump check the following:
1) The pump rotates freely by hand.
2) Fill the grease/oil for the bearings, if not done earlier. The bearings are packed with
grease in the factory for grease lubricated pumps.
3) However, if the pump is stored for a longer time it is necessary to refill the grease in
the bearings. Check the level of oil in the constant level oiler when pump is oil
lubricated.
4) The sealing liquid and cooling water connections are properly tightened and
adjusted.
5) The direction of rotation of driver. It should correspond to the direction of rotation of
pump.
6) The pump casing and the suction pipeline is fully primed with the liquid.
7) Valve on delivery side is closed.
8) The cock for pressure gauge connection is closed.
9) The stuffing box packing is properly tightened.
4.2 Starting the pump
1) Start the pump. Let the prime mover pickup its full speed.
2) Open the valve on delivery line gradually.
3) Regulate the required flow by adjusting the delivery valve.
4) Open the cock for pressure gauge connection.
CORRECT
STEEL STRAIGHT STRAIGHT EDGE
INCORRECT PARALLEL
MISALIGNMENT
STEEL STRAIGHT STRAIGHT EDGE
STEEL STRAIGHT STRAIGHT EDGE
INCORRECT ANGULAR
MISALIGNMENT

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4.3 During running the pump
Check the following things and regulate if needed –
1) The pump is running smoothly.
2) The flow of sealing liquid and cooling water is uninterrupted. If necessary,
provide sight glass in the piping.
3) The bearings are not getting abnormally hot.
4) The gland is properly tightened to give leakage of approximate 60-80 drops per
minute through stuffing box.
5) Head and capacity developed by the pump is as specified.
6) Power consumption is within limit.
7) Ensure that there is no mechanical friction in the pump.
8) Stop the pump immediately, if any, defects are detected. Do not
start the pump unless the defects are rectified. Report immediately to the
supplier, if it is not possible to rectify the defects.
4.4 During stopping the pump
1) Close the valve on the delivery line.
2) Stop the motor.
3) Close the cooling water and sealing liquid connections.
4) If the pump is not required to be operated for a long time, drain the
casing completely. If the pump is required to be stored for a long time, the
bearing housing should be dried internally with hot air and should be flushed with
moisture free protective such as light oil or kerosene.
For Multistage Multi-outlet pump it is always recommended to operate
only one outlet at a time and keep other pump outlets closed. This is important for
getting expected pump performance at respective outlet.
5. TECHNICAL DATA:
5.1 Models:
5.1.1 ‘RKB (MULTIOUTLET)’ type of pumps are available in models as given in table
below.
SR NO.
PUMP TYPE
MAX.
STAGES@1450
MAX.
STAGES@2900
1
RKB –40/12L
14
11
2
RKB –40/14H
14
13
3
RKB –65/19
12
7
4
RKB –100/23E
13
7
5
RKB –125/27
11
-
6
RKB –125/30
10
-
7
RKB –150/34
9
-

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5.1.2 RKB pumps are suitable for clear liquids having temperature -30°C to +900C.
5.2 Direction of rotation: The direction of rotation is clockwise when viewed from
driving end. Against specific requirement pump suitable to anticlockwise rotation
shall be supplied.
Please refer to the Arrow nameplate attached to pump for the
direction.
5.3 Bearings: The shaft is supported with antifriction roller bearing at driving end and
pair of angular contact ball bearing at non-driving end in face to face arrangement.
The bearing specifications are given below. The designations of bearings are as per
SKF catalogue. However, equivalent bearing in type, capacity and dimensions can
also be used.
Pump size
Bearing at DE
Bearing at NDE
RKB –40/12L
NU 307
2 X 7307BG
RKB –40/14H
RKB –65/19
NU 309
2 X 7309BG
RKB –100/23E
NU 310
2 X 7310BG
RKB –125/27
NU 411
2 X 7311BG
RKB –125/30
NU 412
2 X 7312BG
RKB –150/34
NU 413
2 X 7313BG
NOTE:
1. Above bearing details at DE and NDE applicable for clockwise pump
operating at 50 c/s only.
2. Bearing of SKF or equivalent make.
3. Pair of angular contact ball bearing are fitted in face to face
condition.
4. In case of anticlockwise direction pump, NDE becomes DE and DE
becomes NDE.
5.4 Bearing temperature:
Maximum allowable temperature of bearings: 80°C.
5.5 Lubrication of Bearing:
Bearings are grease lubricated. Bearings are lubricated during assembly of pump
at our factory. The greasing should be done after every 1000 hours of running.
To recharge the bearing with fresh grease, use a grease gun through the nipples
provided.
DO NOT APPLY LUBRICANT WHEN PUMP IS RUNNING.

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Following lubricant grades available in the market are suitable.
[A] GREASE:
NAME
GREASE SPECIFICATION
SPEED 1450 RPM
SPEED 2900 RPM
INDIAN OIL
SERVOGEM-3
SERVOGEM-2
HINDUSTAN
PETROLEUM
ALVANIA
GREASE-3
ALVANIA
GREASE-2
INTERNATIONAL
GRADE
NLGI-3
NLGI-2
5.6 Stuffing box: Stuffing box sealing arrangement-
5.6.1 Sealing to Lantern ring: One of the following methods fit to be employed. This is
applicable for horizontal pumps only with gland packing arrangement (for this
please refer to Drg. No. CT 127-82-001-0).
5.6.2 Self-sealing: If order specifies sealing through liquid pumped, self sealing
arrangement shall be provided. For this lantern ring is connected to first stage
internally.
5.6.3 External sealing: If order specifies sealing through external compatible liquid,
supply liquid externally. Pressure recommended is one kg/cm2 (g) more than
suction pressure and quantity required shall be 0.05 m3/hr. max.
5.6.4 Grease sealing: If order specifies grease sealing, pump is provided with a grease
nipple at the suction side stuffing box. Through this grease nipple, grease is
required to be pushed in with the help of grease gun.
NOTE- In the stuffing box of the delivery side, lantern ring is not provided as
sealing to stuffing box is not required on delivery side.
5.7 Stuffing box packing and lantern ring –
Please refer to the following chart for stuffing box packing size and position of
lantern ring.

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Pump Type
Packing Arrangement
Packing Size
RKB –40/12L
1+L+4
10 mm x 10 mm
RKB –40/14H
1+L+4
10 mm x 10 mm
RKB –65/19
1+L+4
12 mm x 12 mm
RKB –100/23E
1+L+4
12 mm x 12 mm
RKB –125/27
1+L+4
14 mm x 14 mm
RKB –125/30
1+L+4
14 mm x 14 mm
RKB –150/34
1+L+4
14 mm x 14 mm
At delivery side 6 packings are used.
5.8 O-ring and key specification:
Material of O-ring shall be Nitrile Rubber.
5.9 O-RING SIZE SPECIFICATION:
Pump Type
Stage Casing Part No.
52201/52203
Diffuser Part No.
52202
Shaft Sleeve
(Gland Packed)
Part No. 52200
RKB –40/12L
190.1 ID X 3.53 T
99.5 ID X 3.53 T
36.5 ID X 3 T
RKB –40/14H
190.1 ID X 3.53 T
99.5 ID X 3.53 T
36.5 ID X 3 T
RKB –65/19
240.9 ID X 3.53 T
120.25 ID X 3.53 T
46.0 ID X 3T
RKB –100/23E
278.99 ID X 3.53 T
129.27 ID X 3.53 T
49.5 ID X 3 T
RKB –125/27
355.19 ID X 3.53 T
158.35 ID X 3.53 T
55.5 ID X 3 T
RKB –125/30
385 ID X 3 T
174.3 ID X 5.7 T
60.33 ID X 3.53 T
RKB –150/34
436 ID X 4 T
195 ID X 6.3 T
75.57 ID X 5.33 T

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5.10 KEY SIZES FOR ‘RKB’ PUMPS:
5.11 Coupling: Coupling shall be supplied along with the pump only if specified so.
Coupling type used shall be preferably jaw flex type.
5.12 Pressure Relaxation Piping:
(Please refer Drg. No. TP129-88-003-0).
To reduce stuffing box pressure on delivery side, pump is supplied with special
piping which connects the chamber just before the delivery side stuffing box to
lower pressure region. This piping is provided in order to reduce the pressure of
liquid acting on the stuffing box to minimize leakage through gland. The chart
enclosed indicates the stage to which the pipe is to be connected. The chart
holds well only if suction pressure is below 2 bars. Alternative arrangement shall
be recommended if suction pressure exceeds 2 bars.
5.13 Specification for oil seals:
Oil seals at DE and NDE are identical.
PUMP TYPE
OIL SEAL SIZE
RKB –40/12L
45 ID X 60 OD X 8 T
RKB –40/14H
45 ID X 60 OD X 8 T
RKB –65/19
58 ID X 72 OD X 8 T
RKB –100/23E
65 ID X 85 OD X 10 T
RKB –125/27
72 ID X 95 OD X 10 T
RKB –125/30
80 ID X 110 OD X 13 T
RKB –150/34
90 ID X 110 OD X 13 T
Location
Key for Coupling
Key for First
impeller
Key for Stage
impeller
Key for Last
impeller
Part Code No.
Pump Type
32100
32000
32001
32002
RKB –40/12L
8 X 7 X 50L
6 X 4 X 25L
6 X 4 X 20L
6 X 4 X 55L
RKB –40/14H
8 X 7 X 50L
6 X 4 X 25L
6 X 4 X 20L
6 X 4 X 55L
RKB –65/19
12 X 8 X 100L
10 X 8 X 60L
10 X 8 X 44L
10 X 8 X 80L
RKB –100/23E
14 X 9 X 100L
10 X 8 X 60L
10 X 8 X 50L
10 X 8 X 100L
RKB –125/27
14 X 9 X 100L
10 X 8 X 60L
10 X 8 X 50L
10 X 8 X 100L
RKB –125/30
16 X 10 X 100L
12 X 8 X 60L
12 X 8 X 44L
12 X 8 X 110L
RKB –150/34
18 X 11 X 130L
12 X 8 X 75L
12 X 8 X 50L
12 X 8 X 130L

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Material of oil seal shall be Nitrile Rubber with Steel Spring.
5.14 TORQUE FOR TIE BAR NUTS:
Sr. No.
Pump Type
Number of Stages
Torque in kg-m
1
RKB –40/12L
RKB –40/14H
2 to 3
4 to 7
8to 14
16
18
20
2
RKB –65/19
1to 4
5 to 7
8 to 9
60
70
80
3
RKB –100/23E
2 to 3
4 to 5
6 to 13
51
56
61
4
RKB –125/27
2 to 4
5 to 7
8 to 10
11
40
45
50
55
5
RKB –125/30
2 to 5
6 to 9
10
60
70
80
6
RKB –150/34
2 to 4
5 to 8
9
35
70
95
5.15 DIMENSIONS OF WASHER FOR RKB PUMPS:

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Pump Type
D
d D9
Thickness
of washer
(t)
Theoretical
Thickness
(B)
RKB –40/12L
46
35
6
3.5
RKB –40/14H
RKB –65/19
56
45
6
4
RKB –100/23E
62
50
6
4
RKB –125/27
72
55
8
5.5
RKB –125/30
80
60
8
5.8
RKB –150/34
90
65
10
7
NOTE: Initially washer is to be manufactured with thickness ‘t’ as specified
above. The washer shall have to be machined to required thickness at the time of
assembly of the individual pump considering the axial movement of pump shaft
on either side.
6. PREVENTIVE MAINTENANCE:
Preventive maintenance schedule is the periodical checks and precautions by
which possibilities of failures and breakdowns are minimized.
6.1 Daily Checks:
6.1.1 Hourly record of suction and delivery pressure, discharge quantity, input to
the pump driver should be maintained.
6.1.2 Bearing temperature, stuffing box leakage / stuffing box temperature, this
gives an idea of mechanical performance of the pump.
6.1.3 Noise and vibrations are the first signs of impending troubles like cavitation,
air lock, bearing failure, choking of impeller or casing and such other operating
troubles. The pump performance should therefore be checked for noise and
vibrations.
6.2 Periodical Checks:
6.2.1 The temperature of the bearing should be measured by thermometer. Safe
maximum working temperature of the bearing is 80°C.
6.2.2 The lubricants of the bearing should be checked. The lubricant might get
contaminated with foreign material or get blackened due to overheating. In
such cases, bearings should be flushed and charged with fresh lubricants.
6.2.3 Check for the stuffing box leakage.

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6.2.4 The alignment of the pump unit should be checked. Due to operational
vibrations, atmospheric temperature or stress induced by the weight of the
piping, the alignment may get disturbed.
6.2.5 Sufficient quantity of suitable type of lubricant should be ready for daily and
emergency use.
6.2.6 Calibrate the measuring instrument.
6.3 Annual Checks:
6.3.1 The pump should be overhauled completely to check the clearance and to
replace worn-out parts. Clearance between impeller and casing rings, shaft
sleeves and throat bush, lantern ring and shaft sleeve, etc., are very
important. The bearings should be cleaned thoroughly and lubricated.
6.3.2 The effects of liquid handled on pump components should be checked. If
abnormal corrosion, erosion is observed, the component should be replaced
with that of suitable material.
6.3.3 The auxiliary pipelines and functioning of the auxiliary system should be
checked. The main pipe also should be checked for scaling, leakage, etc.
6.3.4 The measuring instruments, gauges, etc., should be recalibrated.
6.3.5 Full running test may be carried out to check whether there is any fault in the
performance, in comparison with original performance.
6.3.6 Piping supports should be checked so that the pipes do not induce unwanted
stresses on the pump.
7. OVERHAULING:
7.1 Procedure for dismantling and re-assembly:
While dismantling and re-assembling, the cross-sectional assembly drawing
and specification part list should be referred.
7.2 Dismantling:
Follow the following simple steps to dismantle the pump.
7.2.1 Isolate power supply to motor.
7.2.2 Shut off valves controlling flow to and from the pump.
7.2.3 Drain the liquid from pump by removing the drain plug or open the pump
casing drain cock.
7.2.4 Remove all auxiliary tubing and piping.
7.2.5 We recommend matching the punch mark of the coupling halves.
7.2.6 In case of the pumps with spacer type flexible couplings, disconnect coupling
(pump half and motor half) from the coupling spacer and remove coupling
spacer. In case of ordinary flexible couplings, remove the motor from the
base.

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7.2.7 Remove the delivery and suction pipe connections.
7.2.8 Remove the pump from the base plate and place it on a plain table or
platform. Remove pump half coupling.
7.2.9 Drain the liquid from suction and delivery casing by removing the drain plugs.
7.2.10 Loosen the gland (22300) at DE and NDE.
7.2.11 Take out bearing cover NDE (27100).
7.2.12 Unlock lock washer (41500) and unscrew the lock nut (33600).
7.2.13 Take out bearing housing (24001) along with bearing/bearings. For this
purpose use two jaw puller. Do not use hammer to remove bearing/bearing
housing.
7.2.14 Remove adjustable washer (20901), liquid deflector (23600), distance sleeve
(31700), gland (22300), O-ring (52200) and shaft sleeve (31100).
In case of pumps with mechanical seals, remove mechanical seal
cover (23100) along with seal-insert carefully. Similarly remove shaft sleeve
(31502) along with rotating parts of the mechanical seals.
7.2.15 Unscrew the tie rod nuts (58400), remove washers of tie bar (62300).
7.2.16 Take out delivery casing (11100).
7.2.17 Take out tie bars (34100).
7.2.18 Remove diffuser (12800) from the delivery casing along with O-ring (52202).
7.2.19 Take out impeller (15100) and then remove key (32000/32001/32002).
Remove stage casing (12400) along with O-ring (52201).
7.2.20 Repeat procedure given in 7.2.19 till you reach first stage impeller.
7.2.21 Now start dismantling from DE. Remove bearing cover (27000).
7.2.22 Unlock lock washer (41500) and unscrew lock nut (33600).
7.2.23 Take out bearing housing (24000) along with roller bearing outer race.
7.2.24 For gland packed pump - remove gland packing from the stuffing box and take
out the entire shaft (18000) out of suction casing (11300) along with shaft
sleeve (31000), distance sleeve (31700), deflector (23600), gland (22300)
and inner race of roller bearing, etc.
▪For Mechanical Seal Pump:
Remove inner race of roller bearing, washer (20900), distance sleeve (31700),
deflector (23600), mechanical seal cover (23100), insert and shaft sleeve
(31501) along with rotating parts of mechanical seal carefully.
Caution:
Remove inner race of roller bearing by using one of the following methods. Do
not hammer to remove the inner race.

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a. Use bearing two jaw puller as shown in Fig. 1. For this, two holes of 10mm
dia. are provided on distance sleeve (31700).
b. Use induction heater for localized heating of inner race and remove it after
sufficient heating.
(Please refer Fig. 1).
FIG. 1
•For Gland Packed Pumps:
Remove inner race of the bearing by using one of the following methods.
a. Use same method as shown in Fig. 1, i.e. use of bearing puller.
b. Use of induction heater for localized heating of inner race and remove it after
sufficient heating.
c. Remove shaft sleeve (31000), O-ring (52200), distance sleeve (31700) from
the shaft end other than at the inner race of roller bearing and then remove
inner race of bearing along with washer (20900).
•For Mechanical Seal Pumps:
a. After dismantling, all parts are to be cleaned and checked thoroughly for wear,
tear and damage. Impellers, diffusers, casings or wear rings and inter stage
bushes need to be replaced if drop in head and capacity of the pump is
substantial.
b. All the damaged parts should be replaced by new ones.
c. Inspect all O-rings carefully. Replace the damaged ones. It is advisable to
use NEW O-rings instead of used ones.

IOM/RKB MSMO/SEPT19/00 P a g e 19 | 47 Issue Date: 29/09/19
Revision: 00
7.3 Re-assembly:
7.3 A. This procedure covers re-assembly of pump after complete dismantling of the
pump. Before re-assembly, all the parts should be thoroughly cleaned in
kerosene, petrol or benzene to remove the dust, rust, etc. After cleaning the
necessary parts should be replaced.
Caution:
a) Use arbour press while fitting the bearings. However, it is recommended that
bearings should be heated in oil bath or by heater at temperature 70 to 800C
and then fitted. (If hot oil bath is not available then ARBOUR PRESS must be
used).
Use gloves while fitting bearings from hot oil bath.
b) Slide inboard ball bearing on shaft by hand, make sure that it is square with
shaft. Press evenly the inner race of the bearing until bearing is seated firmly
against the shaft shoulder.
c) Do not use hammer to fit the bearings. Do not damage the shaft surface
especially where it is in contact with oil seal.
1. All parts are free from burr and those are cleaned thoroughly with kerosene/
thinner.
2. Balancing holes provided on impellers are not choked.
3. Replacement components such as O-rings, gland packings, keys, etc., are of
correct size.
4. Grub screw (98600) is fitted in the stage casings.
5. Drain plugs are fitted on suction casing and delivery casing body.
6. Air vent plug is fitted on suction casing body.
7. The sequence of gland packing and packing arrangement is as given above.
8. Check run out of shaft by dial gauge. It should be within 0.05 mm.
9. Insert washer (20900) on the shaft.

IOM/RKB MSMO/SEPT19/00 P a g e 20 | 47 Issue Date: 29/09/19
Revision: 00
7.3 B. Gland Packed Pump:
Mount the washer for bearing and inner race of the roller bearing (26400). Insert
lock washer and tighten lock nut (33600). Lock the lock washer.
Caution:
Adopt one of the following methods for mounting the inner race-
a. Heat inner race by induction heating or heating in an oil bath at a
temperature of about 800C and then mount.
b. Use a sleeve and drive the inner race as shown in Fig. 2.
Mechanical Seal Pump
Take a dummy spacer ring having length equal to inner race of roller bearing. It
should fit loose on the shaft for ease of removal. Insert this dummy ring and
tighten lock nut (33600).
7.3.1 Mount shaft sleeve (31000), distance sleeve (31700) on pump shaft (18000) at
driving side. Insert dummy ring before washer (20900) on the shaft on driving
side.
Note: Mount shaft sleeve (31501) without mechanical seal.
7.3.2 Insert the shaft so far assembled parts inside the suction casing (11300) bore.
Insert gland (22300) on the shaft prior to inserting the shaft into suction casing
in case of gland packed pumps (Refer Fig. 3).
7.3.3 Replace oil seal (50000) in bearing housing (24000) if it is removed.
FIG - 2