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Table 3 – _G3D_-400_ Pump Parts List 

IDP 

QTY  DESCRIPTION 

KIT 

IDP 

QTY 

DESCRIPTION 

KIT 

Case 

43 

Bearing Retainer 

Inlet 

46 

Inboard Cover 

Hex Bolt (Foot Mount Only) 

47 

Brg. Retainer Hex Bolts 

Pipe Plug (Foot Mount Only) 

48 

Bearing Spacer 
(J-Seat Seal and DKH Only) 

1

 

Pin Stop 

XX 

49 

Bearing 

Fastener Seal 

50 

Housing Spacer 

Gasket (1 for C-Face) 

51 

Thrust Spacer 

21 

Idler 

XX 

52 

Thrust Spring Lock Washer 

22 

Balance Piston Housing 
(Foot Mount Only) 

XX 

53 

Thrust Hex Bolt 

23 

Cups 

XX 

54 

Hex Bolts 

24 

Rotor Housing 

XX 

63 

Power Rotor 

XX 

25 

Seal 

64 

1  

Pipe Plug (Steel Only) 

26 

Tube 

71 

Tubing (C Face Only) 

27 

Tube O-ring 

80 

Seal Seat Adapter 
(O-ring Seat Seal only) 

28 

Housing & Inboard Cover 
O-ring

83 

Seal Gasket 

29 

Thrust Plate 

XX 

 86 

Power Rotor Balance Piston 
(C-Face Only) 

XX 

30 

16 

Washers (8 on C-Face) 

79 

90° Tube Fitting 
(C-Face Only) 

31 

Key 

88 

Inlet O-ring 
(Axial inlet pumps only) 

38 

Seal Spacer* 

95 

Nuts (C-Face only) 

42 

Retaining Ring 

X =   Minor Repair Kit Items. 

XX  =   Major Repair Kit Items.  (Items marked (X) are included in Major Repair Kit.) 

* = 

Not used in “DKH” pumps.

H.  PUMP MAINTENANCE

WARNING

 

Failure to observe precautions while installing, inspecting and maintaining pump can cause injury to 
personnel from accidental handling of liquids that may harm skin or clothing, or fire hazard risks from 
flammable liquids, or injury from high pressure fluid jets. 

DANGER

 

BEFORE 

working on equipment, make sure all power to equipment is disconnected and locked-out. 

H.1  GENERAL COMMENTS

NOTE: 

Part number identifiers (IDP) contained within parenthesis, such as (9), refer to circled 
numbers shown in pump parts list Tables 2 and 3 and on assembly drawings (figures 
3 through 7). 

De-energize driver before starting with any maintenance action. 

Summary of Contents for G3D**-350 Series

Page 1: ...The Imo General Installation Operation Maintenance and Troubleshooting Manual No SRM00046 as well as all other component manuals supplied with these type units should be read thoroughly prior to pump...

Page 2: ...s can be done by removing seal vent set screw and pouring liquid into vent passageway before opening pump inlet Alternately seal chamber can be vented in situations where inlet pressure is above atmos...

Page 3: ...ns where electrical safety is involved are identified by Safety instructions which shall be considered for reasons of safe operation of pump and or protection of pump itself are marked by the sign ATT...

Page 4: ...y this manual In applications where equipment furnished by Imo Pump is to become part of processing machinery these instructions should be thoroughly reviewed to ensure proper fit of said equipment in...

Page 5: ...tor T Carbide Seat X Special Material Or Construction 3rd Letter Designator S Steel casing T Carbide Seat X Special Material Or Construction 2nd Letter Designator C Circular Mounting Flange H Special...

Page 6: ...er no circumstances are the following operating limits specified in table 1 to be exceeded without specific approval from Imo Pump Table 1 Normal Pump Operating and Structural Limits Condition Limit M...

Page 7: ...C Face Only 10 16 Hex Bolts 36 1 Pipe Coupling C Face Only 11 1 Power Rotor XX 37 1 Tube Fitting C Face Only 13 2 Snap Rings X 38 1 Seal Spacer 14 1 Spacer Seal Seat Adapter X 42 1 Tubing C Face Only...

Page 8: ...1 Power Rotor Balance Piston C Face Only XX 30 16 Washers 8 on C Face 79 2 90 Tube Fitting C Face Only 31 1 Key 88 1 Inlet O ring Axial inlet pumps only X 38 1 Seal Spacer 95 8 Nuts C Face only 42 2...

Page 9: ...and key 16 or 31 2 Remove bearing retainer 17 or 43 from inboard cover 9 or 46 by removing bolts 18 or 47 and lockwashers 30 if present 3 Remove assembled power rotor 11 or 63 from inboard cover 9 or...

Page 10: ...equire heating to loosen Loctite before bushing 33 or 86 can be removed Do not heat to more than 250 F 9 Remove inlet head 26 or 2 from case 1 by removing bolts 10 or 54 and lockwashers 92 or 30 if pr...

Page 11: ...ivalent onto the mating surfaces of bushing 33 or 86 and inboard cover 9 or 46 Allow 1 to 5 minutes until primer is visibly dry Apply Locitite 609 or equivalent to bushing 33 or 86 and inboard cover 9...

Page 12: ...t of clean system fluid or light oil on seal running face Install the rotating ring running face against the stationary seat face f Install inner snap ring 13 or 42 in groove of power rotor 11 or 63 g...

Page 13: ...4 and lockwashers 92 or 30 if present Torque bolts to value on correct assembly drawing NOTE Inlet head 26 or 2 can be rotated and repositioned in 90 degree increments to suit suction piping To change...

Page 14: ...ctory overhaul assistance contact your local Imo Sales Office or representative at Technical Customer Service Department in Monroe NC USA Most pumps have repair kits available Minor Repair Kits are us...

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Page 19: ...OR International all rights reserved CIRCOR Pumps North America LLC 1710 Airport Road PO Box 5020 Monroe NC USA 28111 5020 Tel 1 704 289 6511 Toll 1 877 853 7867 Email cc colfaxfluidhandling com Web c...

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