Donaldson DLM V Series, Installation, Operation And Maintenance Manual

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Dalamatic Insertable Dust Collectors – Series DLM V
Installation, Operation and Maintenance Manual
4 Undo and remove bolt in end of motor shaft holding the hub retaining washer.
5 Remove motor key by easing it out from keyway.
6 Using the location grooves machined into hub, pull impeller from motor shaft
and out through the front of fan case.
7 Slide spacer off motor shaft.
8 Remove the 4 nuts, bolts and washers holding motor to pedestal.
9 The motor can now be removed using suitable lifting equipment, taking
care not to damage sealing washer placed between motor endplate and
fan casing.
10 Place the new motor on support pedestal and locate rubber sealing washer
between fan case and motor.
11 Position motor on pedestal and secure loosely by replacing the 4 nuts, bolts
and washers.
12 Locate motor key into keyway on motor shaft.
13 Push motor shaft spacer onto motor shaft.
14 Align keyway of impeller hub onto key and slide impeller onto motor shaft.
15 Replace hub retaining washer and shakeproof washer. Apply thread lock
to motor end shaft bolt and replace bolt, ensuring impellor is pushed back
onto spacer.
16 Apply thread locks to grub screws holding hub and tighten into place.
17 Locate impeller, according to the dimension taken during removal, by moving
motor along pedestal, ensuring motor remains square to fan case.
MAINTENANCE
TABLE 1 – TORQUE VALUES FOR BOLTS WITH ISO METRIC THREAD
* For nuts and bolts to ISO 4017.
8 mm 1 mm 20.1 mm² 10.4 Nm 15.3 Nm 17.9 Nm
7 mm 1 mm 28.9 mm² 17.2 Nm 25 Nm 30 Nm
8 mm 1.25 mm 36.6 mm² 25 Nm 37 Nm 44 Nm
10 mm 1.5 mm 58 mm² 50 Nm 73 Nm 86 Nm
12 mm 1.75 mm 84.3 mm² 86 Nm 127 Nm 148 Nm
14 mm 2 mm 115 mm² 137 Nm 201 Nm 235 Nm
16 mm 2 mm 157 mm² 214 Nm 314 Nm 368 Nm
18 mm 2.5 mm 192 mm² 306 Nm 435 Nm 509 Nm
20 mm 2.5 mm 245 mm² 432 Nm 615 Nm 719 Nm
22 mm 2.5 mm 303 mm² 592 Nm 843 Nm 987 Nm
24 mm 3 mm 353 mm² 744 Nm 1060 Nm 1240 Nm
27 mm 3 mm 459 mm² 1100 Nm 1570 Nm 1840 Nm
30 mm 3.5 mm 561 mm² 1500 Nm 2130 Nm 2500 Nm
Nominal
diameter
Torque value*
Grade 8.8
Thread
pitch
Stress
area
Grade 10.9 Grade 12.9