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15 

11. Thread nut (33) on power rotor (22) shaft. Tighten nut to good engineering practices

(Critical torque is applied to setscrews (75)). Install set screws (75) in nut (33) and
tighten set screws to 12 + 2 lbs. ft. (Size 400:  80 + 5 lbs. in.)

12. Install assembled power rotor into the pump, ensuring that each part is centered as it

enters the inboard cover (13) and is properly seated.  Ensure that the gasket (65) is
seated evenly in the inboard cover (13).

13. Install bearing retainer (34) using bolts (35) and lockwashers (36).  Tighten bolts (35) to

a torque value of 95 + 5 lbs. ft. (Size 400: same as size 462)

14. Install key (54), coupling hub, and coupling nut (55).  Tighten setscrew (56).
15. Install coupling spacer.

PUMP DISASSEMBLY 

CAUTION 

ATTENTION 

The 8L series pumps incorporate highly finished precision parts that must be handled carefully 
to avoid damage to critical machined surfaces. The parts removed should be tagged for 
identification and their exact positions in the pump carefully noted so that the new parts, or the 
same parts, are properly replaced without damage. 

NOTE 

Because of the size and weight of the individual parts, we recommend removing the pump from 
its baseplate to a location equipped with a crane when a full disassembly is required. 

1. Complete mechanical seal disassembly (Steps 1-18).
2. Remove power rotor (22) from the pump (Approximate weight: Size 400: 117 lbs., Size

462: 166 lbs.)

3. Install a 3/4"-10 eyebolt (2) into the tapped hole on the inboard cover (13). Connect a

lifting hook to the eyebolt for support of the cover. (Approximate weigh:  Size 400:  231
lbs., Size 462: 330 lbs.)

4. Remove inboard cover capscrews (21) and lockwashers (20).
5. Install ½”-13 jacking bolts in the jacking bolt holes on the inboard cover (13) and evenly

torque to separate the inboard cover from the pump case.

6. Using a soft face mallet, tap the inboard cover (13) to loosen it from the case and

remove. Set inboard cover (13) on a work bench and remove balance piston
bushing/idler stop assembly. Remove capscrew (18), idler stop (16), and balance piston
bushing (15).

7. Remove O-ring (4) from the cover and O- ring (12) from pump case.
8. Remove stop pin plug (11) with O-ring (10).  Insert 3/8-16 inch bolt in threaded hole of

stop pin (009) and remove.

9. Remove strainer (92) from the discharge housing (3).

Содержание CIRCOR GLH8L-400 Series

Страница 1: ...Parts List GLH8L 400 and GLH8L 462 WARNING This Instruction Manual and General Instructions Manual CA 1 should be read thoroughly prior to pump installation operation or maintenance Manual No SRM00122...

Страница 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...

Страница 3: ...he precautions noted in this box can cause damage or failure of the equipment Noncompliance of safety instructions identified by the following symbol could affect safety for persons Safety instruction...

Страница 4: ...hanical Seals 7 Mounting 8 End Cover 8 Inboard Cover 8 Bearing RTD 8 Vibration Monitoring 8 PUMP MODEL IDENTIFICATION 9 INSTALLATION 9 Inlet Position 9 MAINTENANCE 10 Special Tooling Required 10 Manuf...

Страница 5: ...d by 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...

Страница 6: ...NG The GLH series pump parts are not interchangeable with previous designs unless the factory has approved to convert the old design to a GLH design using a modification kit The modification kit along...

Страница 7: ...s are specified the power rotor will be provided with standard balance If a unit with standard balance is installed on an operation with high inlet pressure both the ball bearings 7 and the mechanical...

Страница 8: ...outboard cover 50 for connection of two optional RTD s The RTD s when installed are used to read the temperature in line with the suction idlers These temperatures should be relatively close to each...

Страница 9: ...tive fluid inlet pressure is required CAUTION ATTENTION The end cover 50 must always be assembled with the RTD connection ports in line with the suction idlers To change the position of the inlet head...

Страница 10: ...an airtight seal 6 Mount cover 50 Check to make sure O ring 12 is properly seated in the face groove Align RTD ports in the plane of the idlers 41 Install hex bolts 51 and tighten to a torque specific...

Страница 11: ...11 Manufactured Tooling Figure 1 Bearing Removal Tool Figure 2 Power Rotor Housing Removal Strongback...

Страница 12: ...t 055 Remove key 054 from power rotor 10 Loosen setscrews 75 and remove locknut 33 and nut 32 11 Remove retainer 034 by removing bolts 035 and lockwashers 036 Grasp power rotor 022 and pull assembly f...

Страница 13: ...e of the seal sleeve 26 15 Remove seat adapter 63 with gasket 65 Remove mechanical seal stationary seat 1 Figure 3 with O ring 2 Figure 3 from seat adapter 63 16 Loosen setscrew 3E Figure 3 from seal...

Страница 14: ...eal seat adapter 63 along with its associated gasket 65 onto the shaft sleeve 26 5 Compress mechanical seal enough to expose spiral ring groove and install spiral ring 28 in shaft sleeve 26 locking me...

Страница 15: ...y replaced without damage NOTE Because of the size and weight of the individual parts we recommend removing the pump from its baseplate to a location equipped with a crane when a full disassembly is r...

Страница 16: ...e not bolted together and will separate Please use caution when removing f Push the housing out of the discharge end by rotating the outboard jam nut g As the discharge housing emerges support the wei...

Страница 17: ...for power rotor strongback installation blank should be only the size of the power rotor for this step 12 Complete Steps 1 15 of Servicing the Mechanical Seal and Bearing Mechanical Seal and Bearing...

Страница 18: ...X 54 Key 1 18 Capscrew 2 XX 55 Nut 1 19 Pipe Plug 5 56 Setscrew 1 20 Lockwasher 24 57 Outlet Adapter 1 21 Flange Screw 24 58 Gasket 1 X 22 Power Rotor 1 XX 59 Hex Bolt 4 23 O ring 1 X 61 Capscrew 4 24...

Страница 19: ...ing 1 XX 54 Key 1 16 Idler Stop Subassembly 1 XX 55 Nut 1 18 Capscrew 2 XX 56 Setscrew 1 19 Pipe Plug 5 57 Outlet Adapter 1 20 Lockwasher 8 58 Gasket 1 X 21 Flange Screw 8 59 Hex Bolt 4 22 Power Rotor...

Страница 20: ...20 DRAWINGS...

Страница 21: ...21...

Страница 22: ...1710 Airport Road 28110 PO Box 5020 Monroe NC USA 28111 5020 Tel 1 704 289 6511 1 877 853 7867 Fax 1 704 289 9273 Email cc circor com Web www circorpt com 2020 CIRCOR Pumps North America LLC all right...

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