The pump room is below the Control Room and is accessed through the hatch to port of the master gyrocompass. This compartment is normally unmanned unless its equipment needs repair or adjustment. The main equipment located in the pump room is:
Two high pressure (3,000 lb) four-stage Hardie-Tynes air compressors.
Drain pump and Trim pumps.
Vacuum priming pump for Trim pump.
Compressor for Main Ballast Tank Low Pressure (10 psi) blow system
Hydraulic system IMO pumps
Refrigeration and Air Conditioning compressors
Radar power supplies
Sonar motor generator sets
TBL radio transmitter generator set
Gyrocompass motor generator sets
Constant frequency motor generator for log systems