Weir Roto-Jet RO III 3x2 Quick start guide

Disassembly/Assembly
Manual
RO III 3x2/ROH III 3x2
RJ-DA-2 7/19
Excellent
Engineering
Solutions

ROTO-JET PUMP
DISASSEMBLY/ASSEMBLY
RO III 3x2 / ROH III 3 x 2
Table of Contents
i
1. GENERAL .................................................................................................. 1
1.1. Introduction ...................................................................................... 1
1.2. Roto-Jet Pump Design ..................................................................... 1
1.3. Pump Identification .......................................................................... 2
2. DISASSEMBLY/ASSEMBLY ...................................................................... 2
2.1. General ............................................................................................ 2
2.2. Recommended Tools ....................................................................... 3
2.2 Recommended Tools, continued. .................................................... 4
2.3. Disassembly/Assembly Stands ........................................................ 5
2.4. RO/ROH 3x2 Pump Section Drawing .............................................. 6
2.4.1. Parts List - RO III & ROH III 3 x 2 Pump ............................... 7
2.5. RO/ROH III Rotor Assembly Section Drawing ............................... 10
2.5.1. Parts List - RO III & ROH III 3x2 Rotor Assembly ............... 11
2.6. Seal Parts Lists .............................................................................. 13
2.6.1. Parts List - Stationary Single Seal - 3x2 Pump.................... 13
2.6.2. Parts List - Rotating Single Seal 3x2 Pump ........................ 14
2.6.3. Parts List - Double Seal - 3x2 Pump ................................... 15
2.7. Cautions ......................................................................................... 16
2.8. Seal Replacement.......................................................................... 16
2.9. Pick Up Tube Replacement ........................................................... 22
2.10. Bearing Replacement .................................................................... 23
2.11. Rotating Component Replacement ................................................ 27

ROTO-JET PUMP
DISASSEMBLY/ASSEMBLY
RO III 3x2 / ROH III 3 x 2
Table of Contents
Continued
ii
3. DRIVE BEARING CONVERSION ............................................................ 28
4. HYDROSTATIC PRESSURE TEST ......................................................... 29
5. ROTOR ASSEMBLY BALANCING .......................................................... 29
6. PARTS ..................................................................................................... 31
6.1. Minimum Recommended Spare Parts ........................................... 31
6.2. Parts List - Auxiliary Equipment ..................................................... 33
6.3. Ordering Parts ............................................................................... 33
7. MAINTENANCE RECORD ....................................................................... 34
8. APPENDIX A ……………………………………………………………………..34

RO/ROH 3x2 1
ROTO-JET PUMP
DISASSEMBLY/ASSEMBLY
RO III 3x2 / ROH III 3 x 2
1. GENERAL
1.1. Introduction
This manual has been prepared to assist you in understanding the construction and
the correct methods of disassembly and assembly for your new Roto-Jet pump.
The Roto-Jet pump is the simplest and most reliable high pressure pumping device
ever invented. The design, material and workmanship incorporated in the
construction of Roto-Jet pumps makes them capable of giving long, trouble free
service. The life and satisfactory service of any mechanical unit, however, is
dependent upon correct application, proper installation, periodic inspection and
careful maintenance.
We urge you to read and follow all of the directions in this manual. If additional
copies are required or other detailed instructions are needed, the information may
be obtained upon request.
1.2. Roto-Jet Pump Design
The exclusive patented Roto-Jet pump has only two basic working parts...a rotating
case and a stationary pick-up tube collector arm within the rotating case. The Roto-
Jet design completely eliminates the need for packing glands, wear rings or multiple
stages as used in conventional centrifugal pumps, and also eliminates the complex
pistons, rods, valves and springs required in reciprocating pumps.
The Roto-Jet operates in the following manner: Liquid enters the intake manifold
and passes into the rotating case where centrifugal force increases the pressure of
the liquid and at the same time its velocity is increased. The velocity of the liquid in
the rotor is converted into additional pressure as it jets into the pick-up tube.

RO/ROH 3x2 2
1.3. Pump Identification
Roto-Jet pumps are designated by a series of letters and numbers, such as ROA-
S484. The first group, ROA, is an indication of the basic mechanical configuration
and the second group, S484, designates the pick-up tube size. The pump
nameplate gives both the pump model designation and the pump serial number.
Permanent records for this pump are kept by the serial number and it must
therefore be used with all correspondence and spare parts orders. This will ensure
replacement of components in the original materials of construction.
2. DISASSEMBLY/ASSEMBLY
2.1. General
The following are recommended dismantling and assembly instructions for your
Roto-Jet pump. We urge that the instructions be read thoroughly before attempting
to dismantle the unit. The component parts must be handled with care during the
dismantling and assembly process. The work area should be clean and be
equipped with the required tools.
Depending on the accessibility of the pump and the extent of the repair or
inspection required, the pump can be dismantled in place on its foundation.
However, to facilitate the disassembly procedure, it is recommended that the pump
be removed from its foundation and placed securely into a position in which the
pump shaft is facing downward and the manifold is facing upward. Roto-Jet pumps
offers assembly stands for mounting the unit during disassembly and assembly.

RO/ROH 3x2 3
2.2. Recommended Tools
DESCRIPTION QUANTITY PART
NUMBERS
Complete Tool Kit (includes special and purchased tools) 1 06P661210-004
Special Tool Kit (includes items under special tools) 1 06P661210-003
SPECIAL TOOLS
Alignment Tool-Pick-Up Tube (5/16" - 24) 1 060582064
Alignment Tool-Endbell 3 060580573
Guide, Center-Pick-Up Tube 1 060580574
Handle, Seal Installation 1 060582341
Tee, Handle-5/16"-24 UNF 1 060580633
Measuring Bar (For Shimming) 1 060580635
Forcing Screw - All Thd. Gr. 5 3 060580643
Pin, Guide-Endplate 1 060581220
Pin, Alignment-Rotor Cover 2 060581222
Tool box - 32" x 8-1/2" x 9" 1 060095050
Adapter, Torque Wrench-F/Bearing Locknut 1 060580571
Adapter, Torque Wrench-F/Bearing Locknut 1 060582334
Adapter, Torque Wrench-Seal Hub Nut, 3-1/2" Dia. 1 060582422
Plate - 2" x 2" x 1/4" 3 060582336
Socket - 1/4" Hex Bit x 1/2" Lg., 3/8" Drive 1 060582391
Seal Puller 1 060582418
PURCHASED TOOLS
Eyebolt - 1/2" - 13 x 1-1/2" Lg. Shank 3 060055411
Eyebolt - 5/8" - 11 x 1-1/2" Lg. Shank 3 060055404
Bearing Separator-Spread 1/2" - 8 5/8" 1 060095022
Puller - 17.5 Ton, 9-1/2" 1 060095023
Torque Wrench - 30-150 Ft. Lbs., 1/2" Drive 1 060095026
Torque Wrench - 5 - 80 Ft. Lbs., 1/2" Drive 1 060095027
Adapter - 3/8" Sq. Male x 1/2" Sq. Female 1 060095033
Socket - 5/32" Hex Bit, 3/8" Drive 1 060095035
Socket - 3/16" Hex Bit, 3/8" Drive 1 060095031
Socket - 5/16" Hex Bit, 3/8" Drive 1 060095060

RO/ROH 3x2 4
2.2 Recommended Tools, continued.
PURCHASED TOOLS, continued
Socket - 3/8" Hex Bit, 3/8" Drive 1 060095034
Socket - 1/2" Hex Bit, 1/2" Drive 1 060095036
Protector, Shaft Puller 1 060095037
Heat Gun - 750° Max (120V/60Hz) 1 060095046
Tempilstick - 150° F 1 060095047
Tempilstick - 175° F 1 060095048
Tempilstick - 200° F 1 060095049
Depth Micrometer - 0.3", 6" Base 1 060095051
Indicator, Test-Dial. .0005" 1 060095053
Magnetic Base-Test Indicator 1 060095054
Tester-V-Belt Tension 1 060095057
Legs, Puller - 16-1/2" 1 Pr. 060095025
Legs, Puller - 22-1/2" 1 Pr. 060095056
Scriber/O-ring Remover 1 060095045
ACCESSORIES *
Pump Assembly Stand Kit (Includes stand & swivel hoist ring) 1 060580652-K1
Rotor Assembly Stand 1 0665443-01
Ring, Swivel Hoist (D-Ring) 1 0667025
* Note: Accessories are not included with special tools or purchased tools and must
be ordered separately.

RO/ROH 3x2 5
2.3. Disassembly/Assembly Stands
CAUTION
When lifting the pump
into the vertical
position with or
without the assembly
stand a swivel hoist
ring shall be used in
place of the lifting eye
bolt.

RO/ROH 3x2 6
2.4. RO/ROH 3x2 Pump Section Drawing
Torque Table
Item # Ft.Lbs N.M
45 175 237
55 26 35
57 10 14
58 54 73
60 104 141
61 104 141
62 139 188
63 104 141
64 26 35
71 20 27
72 28 38
74 10 14
80 6 8
Figure 2.4

RO/ROH 3x2 7
2.4.1. Parts List - RO III & ROH III 3 x 2 Pump
Item
No. Qty. Description
Part
Number
1 1 Pick-up Tube: (1) 17.4 PH
S-266
S-375
S-484
D-484
S-600
D-600
0656030
0656031
0655625
0658202
0655626
0655627
2 1 Rotor Assembly (See section 2.5.1 for parts list)
14 1 Cap, Bearing 0655488
16 1 Foot, Pedestal 0661586
17 1 Housing, Bearing - Oil Lube 0655514
18 1 Cover, Bearing Housing 0655517
22 2 Ring, Oiler 0655547
22A 2 Bronze Oil Ring - ROH ONLY 0655547-2
24 3 Plug, Socket Head Manifold
Steel
Stainless Steel
060067736
060067741
*26 1 Endbell *0662568-1
29 1 Hub, Seal
Single Rotating Seal
Single Stationary and Double Seal
0662849-1
0662567-1
30 2 Retainer, Oil Ring 0655583
31 1 Case, Rotor
Standard
High Speed Option
0653206
0655589
32 4 Stud, Manifold 0655592
33 1 Plug, Manifold - Flanged Only
STL
SST
0664827-1
0664827-2
34 1 Gasket, Pedestal Cover 0655601
35 1 Nameplate Oil Level 0665561
*FOR RO I & RO II USE P/N 0660987

RO/ROH 3x2 8
2.4.1 Parts List - RO III & ROH III 3 x 2 Pump, Continued
Item
No. Qty. Description
Part
Number
36 1 Manifold
Threaded:
Ductile Iron
Stainless Steel
Flanged:
Steel
Stainless Steel
Flanged-High Speed Option:
Steel
Stainless Steel
0662850-1
0662850-2
0662577-01
0666243-1
0662577-03
0662577-04
37 1 Nameplate 0660681
38 5 Shim, Bearing 0655622
39 1 Bolt, Eye 0656866
40 1 Bushing, Throttle 0662571-1
41 2 Plug, Pipe Soc. Hd. 0663203
42 2 Plug, Endbell 060067738
43 1 Key, Driveshaft 060076024
44 2 O-ring, Seal Stationary Face 060083941
45 4 Nut, Hex Manifold 060081111
48 1 O-ring, Manifold Plug 060083683
49 1 O-ring, Pick-up Tube 060083684
50 1 O-ring, Manifold 060083913
51 1 O-ring, Seal Hub 060083663
52 1 O-ring, Bearing Cap 060083686
53 2 O-ring, Oil Ring Retainer 060083734
55 1 Nut, Seal Hub 0655735
56 1 O-ring, Bearing Retainer 060083914
57 10 Capscrew, Hex Head Cover 060088325
58 3 Capscrew, Hex Head Bearing Retainer 060088395

RO/ROH 3x2 9
2.4.1 Parts List - RO III & ROH III 3 x 2 Pump, Continued
Item
No.
Qty. Description
Part
Number
59 8 Capscrew, Hex Head Pedestal Foot (Not Shown) 060088814
60 3 Capscrew, Hex Head Bearing Cap 060088399
61 4 Capscrew, Hex Head Manifold Plug 060088365
62 8 Capscrew, Hex Head Rotor Case 060088399
63 9 Capscrew, Soc. Head Endbell 0661091
64 8 Capscrew, Soc. Head Pick-up Tube 0658775
65 12 Screw, Drive 060093116
67 1 Filter, Breather 060099061
68 1 Glass, Sight 0661242
69 1 O-ring, Seal Mating Ring 060083940
69A 1 O-ring, Seal Mating Ring 060083942
70 1 Plate, Seal 0662570-1
70B 1 Plate, Seal Mating Ring 0662848-1
71 4 Capscrew, Soc. Head Seal Plate 0662650
72 5 Capscrew, Soc. Head Seal Hub 060088926
73 1 Plate, Warning Direct Drive 0655541
74 5 Set Screw, Seal Hub 0662651
75A 1 Seal, Single Stationary Face See Section 2.6
75B 1 Seal, Double Stationary Face See Section 2.6
75C 1 Seal, Rotating Face See Section 2.6
76 1 Spacer, Double Seal 0656253
77 1 Pin, Double Seal Spacer 060084318
78 1 Seal Mating Ring
Stationary Seal (T.C.)
Rotating Seal (CERAMIC)
0656552
0658297-100
79 1 O-ring, Rotating Seal 060083943
80 3 Seal Plate Set Screw 58396

RO/ROH 3x2 10
2.5. RO/ROH III Rotor Assembly Section Drawing
Torque Table
Item
No. Ft-Lbs N.M
7 100 136
8 13 18
46 175 237
47 400 542
Figure 2.5

RO/ROH 3x2 11
2.5.1. Parts List - RO III & ROH III 3x2 Rotor Assembly
0660588 - Stainless Steel
ROHB 3x2 Stacked and Balanced X X X X X X
0660589 - Stainless Steel
ROHA 3x2 Stacked and Balanced X X X X X X
0659723-001 - Stainless Steel
ROH 3x2 Balanced X X X X X X
0660566 - Steel
ROHB 3x2 Stacked and Balanced X X X X X X
0660554 - Steel
ROHA 3x2 Stacked and Balanced X X X X X X
0659723 - Steel
ROH 3x2 Balanced X X X X X X
0660554-003 - Stainless Steel
ROB 3x2 Stacked and Balanced X X X X X X
0660554-001 - Stainless Steel
ROA 3x2 Stacked and Balanced X X X X X X
0659265 - Stainless Steel
RO 3x2 Balanced X X X X X X
0660569 - Steel
ROB 3x2 Stacked and Balanced X X X X X X
0660573 - Steel
ROA 3x2 Stacked and Balanced X X X X X X
0659264 - Steel
RO 3x2 Balanced X X X X X X
0660554-004 - Ductile Iron
ROB 3x2 Stacked and Balanced X X X X X X
0660554-002 - Ductile Iron
ROA 3x2 Stacked and Balanced X X X X X X
0660675-001 - Ductile Iron
RO 3x2 Balanced X X X X X X
Part No. 0656217 0656756 0655555 0681810 0659627 0661853-002 0661853-001 0661853 0661853-005 0661853-004 0659204 060083904 060088578 060068656 060068677
Description Rotor, Ductile Iron Rotor, Stainless Steel Rotor, Steel Rotor, Steel - High Speed Option, CA6NM Rotor, Stainless Steel - High Speed Option, CD4MCU Rotor Cover, Ductile Iron Rotor Cover, Stainless Steel Rotor Cover, Steel Rotor Cover, High Speed Option, CA6NM Rotor Cover, High Speed Option, CD4MCU Driveshaft O-ring, Rotor Capscrew Drain Plug, Rotor Cover, Steel Drain Plug, Rotor Cover, Stainless Steel
Qty
1 1 1 1 1 1 1 1 1 1 1 1
22
2 2
Item No.
3A 3B
3C 3D
3E 4A 4B
4C 4D
4E
5 6 7
8A 8B

RO/ROH 3x2 12
Parts List - RO III & ROH III 3x2 Rotor Assembly, Continued
0660588 - Stainless Steel
ROHB 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0660589 - Stainless Steel
ROHA 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0659723-001 - Stainless Steel
ROH 3x2 Balanced
0660566 - Steel
ROHB 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0660554 - Steel
ROHA 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0659723 - Steel
ROH 3x2 Balanced
0660554-003 - Stainless Steel
ROB 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0660554-001 - Stainless Steel
ROA 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0659265 - Stainless Steel
RO 3x2 Balanced
0660569 - Steel
ROB 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0660573 - Steel
ROA 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0659264 - Steel
RO 3x2 Balanced
0660554-004 - Ductile Iron
ROB 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0660554-002 - Ductile Iron
ROA 3x2 Stacked and Balanced X X X X X X X X X X X X X X
0660675-001 - Ductile Iron
RO 3x2 Balanced
Part No. 060052137 060052138 060052138 060052243 0655492 0655544 0655545 0655546 0655891 0655550 0659206 0659205 060081346 060081348 060098229
Description Rotor Bearing Thrust Bearing Radial Bearing RO-A Radial Bearing RO-B Bearing Retainer Oil Slinger, Rotor End Oil Slinger, Drive End Slinger, Shaft Spacer Set, Thrust Bearing Sleeve, Rotor Bearing Slinger, Bearing Cap Sleeve, Shaft Nut, Self Locking, Drive End Nut, Self Locking, Rotor End Wave Spring Washer
Qty
1 1 1 1 1 1 1 1 1 1 1 1 1 1 2
Item No.
11 12
13A 13B
15 19 20 21 23 25 27 28 46 47 66

RO/ROH 3x2 13
2.6. Seal Parts Lists
2.6.1. Parts List - Stationary Single Seal - 3x2 Pump
Figure 2.6.1 - Stationary Single Seal - 3x2 Pump
Item
No. Qty. Description Part Numbers
1 Seal Kit - Pusher - Carbon (Standard)
Seal Kit - Bellows - Carbon
Seal Kit - Pusher - Tungsten Carbide
0661130-001
0661267
0661268
Consisting Of:
75A 1 Seal - Pusher - Carbon
Seal - Bellows - Carbon
Seal - Pusher - Tungsten Carbide
060087015W
060087016
060087031
44
78
69
49
50
1
1
1
1
1
O-Ring Seal
Mating Ring - Tungsten Carbide
O-Ring - Mating Ring
O-Ring - Pick up Tube
O-Ring - Manifold
060083941
0656552
060083940
060083684
060083913

RO/ROH 3x2 14
2.6.2. Parts List - Rotating Single Seal 3x2 Pump
Figure 2.6.2 - Rotating Single Seal - 3x2 Pump
Item
No. Qty. Description Part Numbers
1 Seal Kit - Bellows - Carbon (Standard)
Seal Kit - Bellows - Carbon
Seal Kit - Bellows - Tungsten Carbide
060087002
060087027
060087018
Consisting Of:
75C 1 Seal - Bellows - Carbon
Seal - Bellows - Carbon
Seal - Bellows - Tungsten Carbide
060087022
060087022
060087030
79 1 O-Ring - Seal 060083943
78 1 Mating Ring - Ceramic
Mating Ring - Tungsten Carbide
Mating Ring - Tungsten Carbide
0658297-100
0658298-100
0658298-100
69
49
50
1
1
1
O-Ring - Mating Ring
O-Ring - Pick up Tube
O-Ring - Manifold
060083942
060083684
060083913

RO/ROH 3x2 15
2.6.3. Parts List - Double Seal - 3x2 Pump
Figure 2.6.3 - Double Seal - 3x2 Pump
Item
No. Qty. Description Part Numbers
1 Seal Kit - Pusher - Carbon (Standard)
Seal Kit - Bellows - Carbon
Seal Kit - Pusher - Tungsten Carbide
0658301
0658302
0659523
Consisting Of:
75B 2 Seal - Pusher - Carbon Face
Seal - Bellows - Carbon Face
Seal - Pusher - Tungsten Carbide
060087015W
060087016
060087031
44
78
69
49
50
2
1
1
1
1
O-Ring Seal
Mating Ring - Tungsten Carbide
O-Ring - Mating Ring
O-Ring - Pick up Tube
O-Ring - Manifold
060083941
0656552
060083940
060083684
060083913

RO/ROH 3x2 16
2.7. Cautions
The following precautions are recommended to insure continued satisfactory
operation of unit after reassemble.
2.7.1. Do not re-use o-rings on components during reassembly as they lose their seal
integrity and may leak.
2.7.2. When replacing pick up tube, always replace pick up tube capscrews to avoid
attachment complications.
2.7.3. Never re-use bearing locknuts when replacing bearings as they lose their positive
locking capability when removed.
2.7.4. During rotor cover removal mark location of cover on rotor and location of each
capscrew so that they can be assembled in same location. Failure to do this may
create an out of balance condition making pump susceptible to vibration damage.
2.7.5. Replacement of major rotating component such as rotor or cover will require
rebalancing of rotating assembly.
2.7.6. Be sure all parts are free of dirt, stray metal chips or any foreign matter and have
been thoroughly cleaned.
2.7.7. All torque values given assume lubrication with an anti-seize agent to threads and
underside of bolt heads.
2.7.8. WARNING: When lifting the pump into the vertical position with or without the use of
the assembly stand a swivel hoist ring shall be used in place of the lifting eye.
Reference APPENDIX A Drawing.
2.8. Seal Replacement
WARNING: Before lifting the pump into the vertical position first remove the
lifting eye and install the swivel hoist. When tightening the swivel hoist ring,
torque to 100ft-lbs. Once the pump is re-assembled and in the horizontal
position remove the swivel hoist and re-install the lifting eye. Reference
APPENDIX A Drawing.
2.8.1. Instructions - General
2.8.1.1. Lock out and tag drive.
2.8.1.2. Remove drive connection to pump (belts or flexible coupling).
2.8.1.3. Remove inlet and discharge lines from manifold. Remove seal flush
lines and drainage piping if applicable.