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Maintenance
Model 3410 Installation, Operation, and Maintenance Manual
68
3. Install the dowel pins (496G).
4. Install the screws (426) and parting nuts (425) on the studs (356A) and tighten as follows:
a) Using an X pattern working outwards towards the flanges, tighten the nuts and screws
to the following torque:
• S and M groups: 40 ft-lbs (55 Nm)
• L and XL groups: 60 ft-lbs (80 Nm)
b) Using the same pattern, increase the torque to the following:
• S and M groups: 90 ft-lbs (122 Nm)
• L and XL groups: 180 ft-lbs (245 Nm)
c) Using the same pattern, tighten again to the following torque:
• S and M groups: 105 ft-lbs (142 Nm)
• L and XL groups: 255 ft-lbs (345 Nm)
d) Recheck the torque on each nut and screw.
Complete the assembly
1. Install the stuffing box packing (106) and lantern rings (105).
See
Seal the shaft with a packed stuffing box
(page 39).
2. Install the stuffing box gland (107) and nuts (355).
Make sure to only finger-tighten the nuts.
3. Adjust the glands.
4. Install the oiler (251) and drain plugs if they were removed.
Perform the following as required:
1. Lubricate the bearings.
2. Align the pump and driver.
3. Connect the coupling.
4. Replace the coupling guard.
5. Replace the sealing liquid.
6. Replace the cooling water piping.
7. Prime the pump.
8. Inspect after starting.
9. Check the stuffing boxes.
Bolt Torque Values - 3410 IOM
Table 3: Bolt Torque Values - FT-lb. (N-m)
Sizes
Dry Threads
Lub. Threads
Dry Threads
Lub. Threads
2210
2210
2239
2239
3/8"
12 (16)
6 (8)
36 (48)
18 (24)
7/16"
20 (28)
10 (14)
58 (78)
29 (39)
1/2"
30 (41)
15 (20)
90 (122)
44 (60)
9/16"
44 (60)
22 (30)
126 (170)
63 (85)
5/8"
60 (81)
30 (41)
175 (237)
87 (118)
3/4"
105 (142)
53 (72)
305 (414)
154 (209)
7/8"
170 (231)
85 (115)
495 (671)
248 (336)
1"
255 (346)
128 (174)
740 (1003)
371 (503)
Spare parts
Critical service spare parts
ITT recommends that you have spare parts available to insure against possible long and costly
downtime periods, especially on critical services.
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