Erection steps of ACW pumps1111111111.ppt

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1. Presentation on erection of
CW & ACW pumps

2. Steps in erection of CW pump
Level the pump base on sole plate up to 0.05mm/mtr
accuracy by using spirit level.
Grout the assembly from pocket to top of sole plate
by GP-2 material.
Clean the contact surface of sole plate & pump base
by kerosene or thinner.
Inspect blue matching between contact surfaces of
sole plate & pump base up to 80% accuracy.
Inspect shafts(1-impeller shaft,3-Intermediates
shaft,1-Head shaft) run out up to 0.2mm accuracy
by using dial gauge.
Attach impeller with impeller shaft & tight the
impeller nut with lock washer.
Insert assembly into bell mouth.
Attach bowl on bell mouth with O ring and tight the
studs and nut.

3. Bell mouth
Bowl

4. Attach impeller shaft with split ring & muff coupling
to the first intermediate shaft.
Attach taper pipe with O ring to the assembly & tight
the studs and nut.
Attach second intermediate shaft to the previous
shaft with split ring & muff coupling.

5. Intermidiate shaft

6. Attach O ring,bearing spider,O ring &
column pipe to the previous assembly &
tight the nut bolts.
Attach next third intermediate
shaft(which is last intermediate
shaft)with split ring & muff coupling to
the previous shaft.

7. Coulmn pipe

8. Attach O ring,bearing spider,O
ring,discharge T to the previous
assembly & tight the nut bolts.

9. Discharge T

10. Attach fourth intermediate shaft with
split ring & muff coupling to the
previous shaft.
Attach O ring ,distance pipe to the
previous assembly & tight nut bolts.

11. Distance pipe

12. Insert gland housing & tight the bolts.
Insert asbestos gland rope in the cavity
between shaft & gland housing till
space remain 10mm from base of the
distance pipe.
Insert two piece plate in 10mm space.
Insert ring plate & tight the bolts.
Insert reflector plate.
Attach head shaft with split ring & muff
coupling.
Tight the reflector plate bellow muff
coupling.

13. Reflector plate
Intermidiate shaft bellow head shaft

14. Gland packingassembly

15. Holes for cooling water outlet from gland

16. Attach pump base to the previous assembly &
tight the nuts.
Attach thrust bearing on pump base & set the
tilted pad on runner plate.
Attach thrust collar guide,deflector,lock
washer,chuck nut & lock nut.
Measure remaining distance of shaft.
Lift whole assembly through head shaft &
measure distance called as lift of pump.
Set the whole assembly up to half of the lift
called as float of the pump,tight the lock nut.

17. Cooling pipe in thrust bearing

18. Insert the thrust bearing guide,cover
plate & tight nut bolts.

19. Thrust bearing guide

20. Thrust bearing cover

21. Thrust bearing housing

22. Attach motor stool to the previous
assembly.
Attach motor & couple it with head
shaft of pump up to accuracy of
0.2mm(axial & horizontal)by using dial
gauge.
Gap between these couplings should
not exceed 10mm.

23. Thrust bearing housing with base plate

24. Required tools & tackles
12/13 to 55/58 ring spanner/open end spanner.
6mm to 12mm Allen key’s
Screw driver 10"
Chissel 8"
Pipe wrench 18"
Adjustable spanner 12"
Wire rope –
2 Ton capacity & 1.5 mtr. length
4 Ton capacity & 2 mtr. Length
10 Ton capacity & 2 mtr. Length
15 Ton capacity & 3 mtr. Length
D Shukkle

25. Lubricants & cleaners
required for pump erection
Thinner-To clean the metallic contact surfaces.
Servo pride 40-For lubrication of muff coupling.
Servo pride 68-Use in thrust bearing.
Grease-Use in fitting of O rings & gland rope.
Asbesstos graphite gland rope of 22mm square.(3mtr
for one CW pump & 2 mtr for one ACW pump.
Emery stone.
Emery paper.