KIRLOSKAR KPDS, Instruction On Installation, Operation And Maintenance

Page: 15 / 50

IOM/KPDS/NOV 19/00
Page 12 12 12 12 of 50 50 50 50
Issue Date : 22/11/2019
Revision: 00
10.1.1 Procedure for fitting bearing bush:
Applicable for 80C25 and 100C25 unit pumps-
Press the bearing bush (35300) in casing cover (22000) and drill and tap
(M6x10L), bush and casing cover together at the junction of bush and casing
cover (for 80C25 and 100C25 unit pumps). Fit a grub screw in the tapped hole
to avoid rotation of bush (this is necessary in case of replacement of bush only).
10.1.2 Applicable for 150C38 and 150C45 unit pumps-
Press the bearing bush (35300) in bearing shell (35600) and drill and tap
(M6x10L), bush and bearing shell together at the junction of bush and bearing
shell. Fit a grub screw in the tapped hole to avoid rotation of bush. Now fit the
bearing shell along with bush in casing cover and fix the hex. socketed cap
screws (66601). Mount the cover (27801) on bearing shell and fix 4 nos. non
metallic screws
.
10.2 Insert casing cover (22000) on to the pump shaft/impeller shaft (18000/18600) and
shaft sleeve (31100). Insert the assembly so far completed in to pump casing
(10700) with gasket (51100) in proper position. Tighten the hex. nuts on pump
casing studs diametrically opposite evenly.
Mount bottom column pipe (13301) on casing cover and tighten nuts on pump
casing studs. In short casing cover is sand-witched between pump casing and
bottom column pipe.
NOTE: For pumps with impeller diameters 32 & 40 cm (e.g. KPDS 40/32, 80/40, etc.) and
KPDS 20/16QF casing cover is double flanged, hence first nuts on casing cover to
be tightened and then bottom column pipe (13301) to be mounted on casing
cover (22000).
10.3 Mount bottom column pipe (13301) on casing cover (22000), tighten the nuts on
casing cover studs diametrically opposite evenly.