208 Vac, 3-phase
7.5 hp @ 3,450 RPM
1,035 lb (includes hydraulics, A/C, heat, air filtration)
13 GL in reservoir
Total Hydraulic Capacity:
R22 Refrigerant Capacity:
1,295 lb (includes cables, wires, control boxes)
730 lb (includes air beams, air manifold, insulation panels)
Section III. PRINCIPLES OF OPERATION
The CBPS is a highly mobile battalion aid station designed to be operational in a forward battle area in a
quick time response (under 30 minutes). The CBPS is manned by a crew of four. Two crew members (LMS
crew) are inside the LMS and are responsible for operating electronic controls as well as installing internal
doors and equipment. The other crewmembers (cab crew) are the driver and navigator. Their responsibilities
are to set ECV for static mode, unload HMT, connect 10 kW TQG to LMS power panel, install ABS stakes,
install outside doors on ABS and other tasks associated with inflating the ABS. The following provides a
basic operational description of CBPS, its major components and how they interface with each other.
a. Operational Power. The CBPS is operated using the ECV or external 10 kW TQG and operates off
both Direct Current (DC) and Alternating Current (AC).
When operating under ECV power, the circuit breaker on the LMS power panel is normally
set to OFF. However, the 10 kW TQG can also be used (circuit breaker ON) to power AC
electric heaters during low temperature conditions.
ECV System (Internal) Power. When internal power is used (ECV operating), the DC power for
CBPS is derived directly from vehicle's electrical system. Two warning indicators on rear control
panel are used to alert crew if engine's oil pressure is low or if temperature of engine's coolant is
To set ECV for static mode, the cab crew puts vehicle in park, sets hand brake and turns EPG
switch ON. The shelter crew turns on circuit breakers and sets controls on rear control panel.
The EPG controls idle speed of ECV engine under varying system load conditions by comparing
engine speed (via magnetic pickup on engine flywheel) with settings on EPG control unit.
With engine running in high idle (EPG ON), the belt-driven primary hydraulic pump P1 in
engine area is turning and pumping hydraulic fluid throughout selected components in ECU.
The 24 Vdc, 200 amp system of ECV provides DC operating power for CBPS. The 24 Vdc voltage
is applied to inverter which provides a 115 Vac output for CBPS AC components.