Installation, Operation and Maintenance manual
20
Downflo
®
Evolution
Field joining installation
(See figure ‘Field Joining Installation’)
The dust collector is a modular unit that may require field joining. The field joint may
be a result of truck capacity, crane capacity or specific customer requirement.
A detailed drawing of how to join your dust collector has been shipped with your dust
collector. Most of the joining hardware is on the inside of the collector. A stepladder
will be helpful in assembling the flanges near the top of the collector. Both the dirty
air and the clean air chambers will have to be accessed during joining.
Two cranes are required.
Read all instructions for assembly.
Leave one hopper off the collector on either side to the joint.
The yokes, filter, cartridge baffles and outlet covers have been left off the joint
side.
Follow all safety precautions when installing your dust collector.
1. Remove the protective shipping cover from each module.
2. Remove one inspection cover on the clean chamber.
3. Apply sealant to one side of the joint. Follow the sealant pattern exactly as it is
shown in Figure ‘Field Joining Installation’.
4. Lift both units with cranes into position for joining. Align the bolt holes in the
flanges with drift pins. Bolt the joint together with the bolts, washers and nuts.
Do not tighten hardware.
5. When all of the hardware has been attached to the collector, make sure that the
joints are flush and tighten all hardware.
6. During the tightening sequence, some sealant may loosen out of the joint.
Wearing protective rubber gloves, proceed to move any excess. Dispose
of excess sealant properly.
7. Proceed with the assembly of the collector
.
8. Reinstall the inspection cover.
Two cranes are required to lift and assemble modules.
1. Remove the protective cover from the end of each module.
2. Remove one column of access covers, filters, venturis, and yokes from the
joint side of each module as shown in Detail A.
3. Remove outlet cover from the bottom of the clean-air plenum and set aside.
4. Apply a generous amount of sealant to one module to create an airtight seal
between the clean- and dirty-air plenums as shown in Detail B.
5. Lift both modules into position using two cranes.
6. Use drift pins to align the bolt holes in the mating flanges.
