Overview: The document is a selection guide for FALK Type PC Pump and Cooler Assemblies with Water/Oil Heat Exchanger, designed to assist compact gear drives in dissipating thermal energy. It outlines various cooling accessories offered by Rexnord, including shaft-driven and electric cooling fans, cooling tubes, and pump and cooler assemblies.

Specifications: The guide details five sizes of Type PC Pump & Cooler Assemblies, each including an oil pump, pump motor, coupling, water/oil heat exchanger, oil filter, and bypass valve, all pre-assembled on a steel mounting plate. The assemblies are floor-mounted, with oil piping provided by Rexnord and water piping by the customer.

Selection Process: The selection involves determining the power rating of the prime mover and calculating the BTU/Hr based on the type of gear drive (single, double, or triple reduction). The appropriate pump and cooler assembly is then selected from Table 1, which lists specifications and maximum dissipation capacities for each assembly size.

Installation & Maintenance: The document emphasizes safety precautions, such as locking out power sources before servicing. It provides guidelines for connecting oil and water lines, maintaining proximity to the gear drive to minimize pressure drops, and ensuring proper oil flow to bearings. Optional components like oil immersion heaters and temperature switches are recommended for specific conditions.

Tables and Data:

• Table 1: Lists specifications for each assembly size, including pump type, coupling, heat exchanger, and motor options.
• Table 2: Provides pre-selected pump and cooler assemblies for specific gear drive sizes and RPMs.
• Table 3: Recommends minimum lube line sizes based on line length and assembly size.

Recommendations: The guide advises using a water control device and flow gauge to regulate water flow through the heat exchanger. It also suggests maintaining constant diameter lube lines and minimizing bends to reduce pressure drops and cavitation risks.