3 impeller clearance, 4 direction of rotation – Flowserve MNV User Manual
Page 24
MNV & MNZ USER INSTRUCTIONS ENGLISH 71569188 11/04
Page 24 of 47
®
5.2.5.2 Recommended grease fill quantities
Frame
No.
Line
Bearing,
Timken
CUP P.N./
CONE P.N.
Thrust
Bearing,
Timken
CUP P.N./
CONE P.N.
Initial Fill
g
(oz)
Suggested Re-Lubrication
g
(oz)
Line Bearing
Thrust Bearing
Freq.
Qty. Ounces
Conn.
1
Cover
2
Conn.
1
Cover
2
Hours
Line Brg
Thr. Brg
4T
JLM506849/
JLM506810
M804048/
M804010
43
(1.5)
9
(0.3)
28
(1.0)
23
(0.8)
300
9
(0.3)
9
(0.3)
5T
29685/
29620
72225C/
72487
56
(2.0)
14
(0.5)
56
(2.0)
56
(2.0)
300
11
(0.4)
11
(0.4)
6
6536/
6580
6536/
6580
369
(13.0)
114
(0.4)
369
(13.0)
225
(8.0)
300
28
(1.0)
28
(1.0)
6A
HM218210/
HM218248
9220/
9285
3
56
(2.0)
42
(1.5)
85
(3.0)
127
(4.6)
300
14
(0.5)
14
(0.5)
7L
JM822010/
JM822049
9321/
9386H
595
(21.0)
85
(3.0)
370
(13.0)
255
(9.0)
300
28
(1.0)
28
(1.0)
7H
JHM522610/
JHM522649
98788/
98400
480
(17.0)
225
(8.0)
565
(20.0)
650
(23.0)
300
28
(1.0)
42
(1.5)
8L
74850/
74500
HM926710/
HM926740
990
(35.0)
200
(7.0)
680
(24.0)
310
(11.0)
500
42
(1.5)
42
(1.5)
8H
95925/
95500
HH926710/
HH926749
880
(31.0)
425
(15.0)
1135
(40.0)
1135
(40.0)
500
56
(2.0)
56
(2.0)
8HA
82931/
82576
HH926710/
HH926749
880
(31.0)
625
(22.0)
1135
(40.0)
1135
(40.0)
500
56
(2.0)
56
(2.0)
9H
H239610/
H239640
H936310/
H936349
1560
(55.0)
625
(22.0)
1845
(65.0)
1700
(60.0)
500
70
(2.5)
70
(2.5)
9HA
93125/
93825
H936310/
H936349
1560
(55.0)
480
(17.0)
1845
(65.0)
1700
(60.0)
500
70
(2.5)
70
(2.5)
•
This value indicates the amount of grease to be added to the bearing through the grease connection.
For horizontal units, the space between the bearing and the grease retainer will be 2/3 full.
•
This value indicates the amount of grease required for packing the space between each bearing and its
respective cover. The space between bearings and their respective covers should be 1/3 full.
•
This bearing must comply to Timken Co. inspection code 20481
5.2.6 Grease change schedule
When grease nipples are fitted, one charge between
grease changes is advisable for most operating
conditions.
The characteristics of the installation and severity of
service will determine the frequency of lubrication.
Lubricant and bearing temperature analysis can be
useful in optimizing lubricant change intervals.
The bearing temperature may be allowed to rise to 40
ºC (100 ºF) above ambient. If the temperature is
exceeding this limit, a special consideration may have
to be given to set the alarm and trip. Consult
Flowserve with the temperature data for
recommendations (If needed).
Never mix greases containing different
bases, thickeners or additives.
5.3 Impeller clearance
(See section 6.1.6)
5.4 Direction of rotation
Ensure the pump is given the same
rotation as the pump direction arrow cast on the
pump casing.
To avoid dry running the pump must either be filled
with liquid or have the flexible coupling disconnected
before driver is switched on.
If maintenance work has been carried
out to the site's electricity supply, the direction of
rotation should be re-checked as above in case the
supply phasing has been altered.