4
5
© 2016 mbh pumps (gujarat) pvt. ltd.
© 2016 mbh pumps (gujarat) pvt. ltd.
(B) Reassembly Procedure :
a) Apply a thin layer of grease to all surfaces which have to be air tight.
b) Clean Recirculating Port in Delivery Casing.
c) Complete the Flap - Valve Assembly. If it is dismantled with Suction Cover and
wearing plates.
d) Mount Bearings on the Shaft so that Bearing rest against the steps provided on
the Shaft. Apply grease between the two faces of the Bearings. Ball Bearings should
be press-fitted. If it is not possible then hammer gradually the inner race of the Ball
Bearings by putting suitable spacer on it.
e) Insert the Shaft into the Bearing Housing from driving end.
f) Insert the Bearing Cover, (Bearing Cap, Water Deflector, Gland and Washer for
stuffing Box Packing) on the Shaft from Non driving End Side Applicable models.
g) Fit sub-assembly of stuffing Box Housing on Bearing Housing as applicable.
h) Put Flat Gasket for Shaft Sleeve on the Shaft Sleeve Slot / Keyway Matches with
Shaft - Keyway.
i) Fit the Bearing Cover D. E. to the Bearing Housing (as per the Model)
j) Insert the Impeller Key into the Shaft and Shaft Sleeve and mount the Impeller on
the Shaft. Lock it by Impeller Nut along with its washer. Tighten the Bearing Nut on
the Shaft. Check clearance between Impeller and Wearing Plate D.E. it should be
0.15 to 0.60mm
k) Fit the Driving Unit (i.e. assembly of Stuffing Box Housing, Bearing Housing, Bearing
Shaft, Impeller etc.) to the delivery Casing and tighten it with the help of Nuts. The
clearance between impeller and wearing Plate N.D.E. should be 0.25 to 0.35mm.
This should be adjusted by inserting required thickness of paper packing, between
stuffing Box Housing and Delivery Casing. After fitting the Driving Unit, see that
impeller rotates freely.
l) Insert two Stuffing Box Packings, Lantern Ring duly filled with grease and again two
Stuffing Box Packings. The joints of the Stuffing Box Packings should be 180 to
each other. Tighten the Gland by nuts.
m) Insert Coupling Key on the Shaft and mount the Pump Couplings on the Shaft and
tighten it by Grub Screw.
n) Fix up grease Cups for Bearing D.E., N.D.E. and Stuffing Box.
o) Tighten Sub-assembly of Suction Cover and Flap Valve with Delivery Casing and
then tighten the Delivery Flange and Suction Flange. Tighten this to Delivery Casing
with its washer.
3.5 COUPLING DETAILS FOR BARE SHAFT PUMPS FOR MOTOR DRIVE LOVE
JOY MAKE.
Sr.
No. Pump
Recommended
Motor Rating
(H.P./ Kw)
Recommended Coupling Model
Loverjoy / Equivalent)
I
MBH SP-7
1 / 0.75 2900 RPM
L - 095
II
MBH SP-9
2 / 1.50 2900 RPM
L - 095
III
MBH SP-11
3 / 2.20 2900 RPM
L - 095
IV
MBH SP-16
5 / 3.70 1450 RPM
L - 100
V
MBH SP-23
10 / 7.50 1450 RPM L - 100
4.0 GLAND PACKING CHART
Sr.
No.
Pump
Type
No of
Packings
Size in MM
(Height x
Width)
Length of
Packing /
Set (MM)
Material
I
MBH SP-7
4
8 x 8
116.5
Graphited Cotton
II
MBH SP-9
4
8 x 8
116.5
--- Do --
III
MBH SP-11
4
9 x 9
143.0
--- Do --
IV
MBH SP-16
4
8 x 8
157.0
--- Do --
V
MBH SP-23
4
8 x 8
157.0
--- Do --
4.1 BEARING DETAILS
Sr.
No.
Pump
Type
Bearing at Driving
End (SKF / Equivalent)
Bearing at Non Driving
End (SKF / Equivalent)
I
MBH SP-7
6305
6205
II
MBH SP-9
6305
6205
III
MBH SP-11
6305
6205
IV
MBH SP-16
6306
6206
V
MBH SP-23
6306
6206
4.2 TYPE OF IMPELLER AND WEARING PLATE DETAILS
Sr.
No.
Pump Model
Bare Shaft /
Mono Version
Type of
Impeller
Wearing Plate
Details Non
Driving End
Wearing Plate
Details Non
Driving End
I
MBH SP-7
SEMI-OPEN
No
No
II
MBH SP-9
SEMI OPEN
Yes
No
III
MBH SP-11
SEMI OPEN
Yes
No
IV
MBH SP-16
SEMI OPEN
No
No
V
MBH SP-23
OPEN
Yes
Yes
4.3 WATER FILLING CAPACITY
Sr.
No. Pump Type
Water Filling
Capacity (Liters)
I
MBH SP-7
5.1
II
MBH SP-9
6.1
III
MBH SP-11
10.0
IV
MBH SP-16
14.0
V
MBH SP-23
37.2
Self Priming Mud Pump
Self Priming Mud Pump
