Xylem IMDWT R02 Model DWT Deep Well Turbine Pumps - Manual (Page 15)

15
6. Install the split gland and screw nuts on the split
gland studs. Tighten nuts then relieve the nuts and
tighten finger tight. If discharge pressure is over 100
PSI, attach bypass line to the stuffing box bypass.
Check that the split gland is square in the
stuffing box. Cocking can cause uneven
compression of packing and damage to the shaft or sleeve
and heat up the shaft and stuffing box.
7. The stuffing box is shipped with both ports plugged.
If the discharge pressure is over 100 psi, remove the
plug on Port “A” and attach a bypass (relief) line. If
the discharge pressure is over 200 psi, remove the
plug on Port “B” and attach another bypass line.
8. Final adjustment of the stuffing box must be made at
pump start up.
Figure 9
9. A properly packed stuffing box should be loose
enough to allow the shaft to be turned manually.
Do not over tighten packing or excessive
wear can occur on the shaft or sleeve.
INSTALLING THE TENSIoN PLATE
Assemble Tension Plate Assembly as shown in Figure 9.
1. Remove the lock bolt (636) and o-ring (620).
Thoroughly clean the tension plate (625) including
the o-ring groove. Lightly grease the o-ring and
reinstall it.
Figure 10
CAUTION
CAUTION
LUB LINE
(635)
LOCK BOLT
(636)
TENSION NUT
(623)
CAPSCREWS
TENSION PLATE
(625)
GASKET
(779)
O-RING
(620)
TUBE NIPPLE
(629)
Setting (Feet)
Column
Shaft
Tube 100 200 300 400 500
(Nom.
(inch)
(Nom. Tube Shaft Shaft Tube Shaft Shaft Tube Shaft Shaft Tube Shaft Shaft Tube Shaft Shaft
Inch) Inch) Tension Rise Pull-up Tension Rise Pull-up Tension Rise Pull-up Tension Rise Pull-up Tension Rise Pull-up
(in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.)
4 1 1.5 0.02 0.01 0.02 0.09 0.04 0.07 0.21 0.08 0.15 0.37 0.15 0.26 0.57 0.23 0.41
1 1.5 0.02 0.01 0.02 0.08 0.03 0.06 0.18 0.06 0.14 0.33 0.11 0.25 0.51 0.17 0.40
5 1.19 2 0.02 0.01 0.02 0.09 0.04 0.07 0.21 0.09 0.15 0.37 0.15 0.26 0.59 0.24 0.41
1.5 2.5 0.03 0.01 0.02 0.11 0.06 0.07 0.25 0.13 0.16 0.45 0.23 0.28 0.71 0.36 0.44
1.69 2.5 0.03 0.02 0.02 0.12 0.06 0.07 0.26 0.14 0.17 0.47 0.25 0.30 0.73 0.39 0.47
1 1.5 0.02 0.01 0.02 0.08 0.02 0.06 0.17 0.05 0.14 0.30 0.08 0.25 0.47 0.13 0.39
6 1.19 2 0.02 0.01 0.02 0.08 0.03 0.06 0.19 0.07 0.14 0.34 0.12 0.26 0.53 0.19 0.40
1.5 2.5 0.02 0.01 0.02 0.10 0.04 0.07 0.22 0.10 0.15 0.40 0.18 0.27 0.62 0.28 0.42
1.69 2.5 0.03 0.01 0.02 0.10 0.05 0.07 0.23 0.11 0.16 0.41 0.19 0.29 0.64 0.30 0.45
1.19 2 0.02 0.00 0.02 0.07 0.02 0.06 0.17 0.04 0.14 0.30 0.08 0.25 0.47 0.12 0.38
1.5 2.5 0.02 0.01 0.02 0.08 0.03 0.06 0.19 0.07 0.15 0.34 0.12 0.26 0.53 0.18 0.40
8 1.69 2.5 0.02 0.01 0.02 0.09 0.03 0.07 0.20 0.07 0.15 0.35 0.13 0.27 0.54 0.20 0.42
1.94 3 0.03 0.01 0.02 0.10 0.05 0.07 0.23 0.10 0.16 0.40 0.18 0.28 0.63 0.28 0.44
2.19 3.5 0.03 0.01 0.02 0.11 0.06 0.07 0.25 0.13 0.16 0.45 0.23 0.29 0.70 0.36 0.45
2.44 3.5 0.03 0.02 0.02 0.12 0.06 0.08 0.27 0.14 0.17 0.47 0.25 0.31 0.74 0.39 0.48
1.19 2 0.02 0.02 0.01 0.07 0.01 0.06 0.16 0.03 0.13 0.28 0.06 0.24 0.43 0.09 0.37
1.5 2.5 0.02 0.02 0.02 0.08 0.02 0.06 0.17 0.05 0.14 0.30 0.08 0.25 0.48 0.13 0.39
10 1.69 2.5 0.02 0.02 0.02 0.08 0.02 0.06 0.17 0.05 0.14 0.31 0.09 0.26 0.48 0.14 0.40
1.94 3 0.02 0.02 0.02 0.09 0.03 0.07 0.20 0.07 0.15 0.35 0.13 0.27 0.54 0.20 0.41
2.19 3.5 0.02 0.02 0.02 0.10 0.04 0.07 0.21 0.09 0.15 0.38 0.16 0.28 0.60 0.25 0.43
2.44 3.5 0.02 0.02 0.02 0.10 0.04 0.07 0.22 0.10 0.16 0.40 0.18 0.29 0.62 0.28 0.45
1.5 2.5 0.02 0.00 0.02 0.07 0.02 0.06 0.16 0.04 0.14 0.29 0.08 0.24 0.45 0.12 0.38
1.69 2.5 0.02 0.01 0.02 0.07 0.02 0.06 0.17 0.05 0.14 0.29 0.08 0.25 0.46 0.13 0.39
12 1.94 3 0.02 0.01 0.02 0.08 0.03 0.06 0.18 0.07 0.15 0.33 0.12 0.26 0.51 0.18 0.40
2.19 3.5 0.02 0.01 0.02 0.09 0.04 0.07 0.20 0.08 0.15 0.35 0.15 0.27 0.55 0.23 0.42
2.44 3.5 0.02 0.01 0.02 0.09 0.04 0.07 0.21 0.09 0.16 0.37 0.16 0.28 0.57 0.26 0.44