Caution, Table 11 bolt torque values - ft-lb. (n-m) – Goulds Pumps 3420 - IOM User Manual
Page 78
10. Check for free turning by turning the shaft by hand.
11. Replace any grease fittings (193), if required.
12. Place the parting gasket (351) in position on the lower
half casing. Make sure the edge of the gasket is tight
against the wear rings and the stuffing box bushings.
NOTE: If the area around the wear ring locks are not
properly sealed, leakage will occur from the high to the
low pressure zones in the pump. This will result in lost
performance and efficiency.
13. Carefully lower the upper half casing onto the lower
half. It should settle into place without resistance.
14. Replace the dowel pins (469G).
15. Check for free turning by rotating the shaft by hand.
16. Tighten the parting nuts alternately on each side
starting from the center.
17. Check for free turning by rotating the shaft by hand.
18. Trim the parting gasket at the stuffing box face, if
required.
$
CAUTION
Make sure the gasket is flush to the stuffing box face to
prevent leakage.
19. *Oil Lubrication: Slide the oil throwers (248) and
dust covers (139) to within 1/32 in. of the bearing end
covers or adapters. Tighten the set screws (222N).
*Grease Lubrication: Slide the deflectors (123) to
within 1/32 in. of the bearing end covers or adapters.
Tighten the set screws (364).
20. Packing: Repack the stuffing box and replace the
gland assembly as detailed in Section 4 - Operation.
21. Install all auxiliary piping.
22. Follow the procedures outlined in Section 4 for
preparation and operation of the unit.
*
N/A for labyrinth seal option.
74
3420 IOM 8/09
Table 11
Bolt Torque Values - Ft-lb. (N-m)
Sizes
Dry Threads
2210
2442
Lub. Threads
2210
2442
Dry Threads
2239
2443
Lub. Threads
2239
2443
1
2
"
30
(41)
20
(27)
90
(122)
60
(81)
5
8
"
60
(81)
40
(54)
175
(237)
115
(156)
3
4
"
105
(142)
70
(95)
305
(414)
205
(278)
7
8
"
170
(231)
115
(156)
495
(671)
330
(447)
1
255
(346)
170
(231)
740
(1003)
495
(671)
1
1
8
"
360
(488)
240
(325)
1050 (1424)
700
(949)
1
1
2
"
885
(1200)
590
(800)
2580 (3498)
1720 (2332)
1
3
4
"
1400 (1898)
935
(1268)
N/A
N/A
M12
30
(41)
20
(27)
85
(115)
55
(75)
M16
60
(81)
40
(54)
175
(237)
115
(156)
M20
130
(176)
85
(115)
375
(509)
250
(339)
M24
220
(298)
145
(197)
640
(868)
425
(576)
M30
440
(597)
295
(400)
1275 (1729)
850
(1153)
2210 - ASTM A108 GR. 1211 - Carbon Steel
2239 - ASTM A193 GR. B7 - AISI 4140 Steel
2242 - ASTM A108 GR. 1018 - Carbon Steel
2243 - ASTM A108 GR. 1212 - Carbon Steel