M O N T H L Y P R E V E N T I V E M A I N T E N A N C E P R O C E D U R E S
Cooling Zone Heat Exchanger (Nitrogen Option) Cleaning
5-54
Bravo™ 8105 Preventive Maintenance Guide
Rev. 2
5
Photograph
Figure 5–12
Procedure – Removing
the Heat Exchanger
1. Carefully lift the top of the chamber. To avoid the heat exchanger falling out
of the compartment, support the unit with one hand while lifting the chamber
up.
2. When the chamber is raised, remove the heat exchanger by lifting it up and
over the “hooks” in the rear bracket that support the rear of the heat
exchanger.
3. Carefully remove the heat exchanger from the machine.
4. If the heat exchanger is replaced with a substitute, the replacement can be
installed and production resumed.
Procedure – Cleaning
the Heat Exchanger
Clean the heat exchanger by submersing it in an appropriate solvent
recommended by the flux manufacturer. The heat exchanger needs to soak until
the flux residue dissolves from the surface. It may aid in cleaning to use a non–
abrasive brush. Prevent bending the fins by brushing them lengthwise. Allow the
heat exchanger to dry before restoring it to the machine.
Procedure – Inserting
the Heat Exchanger in
the Machine
1. Place the metal support pins that extend from each side of the rear of the
heat exchanger into the bracket that supports them.
2. Lift the heat exchanger into the hood of the cooling module, ensuring that the
coolant inlet and outlet connections line up properly with the openings toward
the front of the unit.
3. Lower the chamber top into place.
4. Secure the latches on the front of the unit.
5. Attach the coolant hoses.
Remove Hoses Here
