TM 5-4310-393-14
CHAPTER 2
OPERATING INSTRUCTIONS
Page
Section I
Description and Use of Operators Controls and Indicators ..................................................... 2-1
Section II
Preventive Maintenance Checks and Services (PMCS) ......................................................... 2-3
Section III
Operation Under Usual Conditions ....................................................................................... 2-7
Section IV Operation Under Unusual Conditions ................................................................................. 2-15
Section I. DESCRIPTION AND USE OF OPERATORS CONTROLS AND INDICATORS
Paragraph
Page
2-1
General .............................................................................................................................. 2-1
2-2
Operator's Control and Indicators ......................................................................................... 2-1
2-3
Safety Devices..................................................................................................................... 2-1
2-1. GENERAL.
The instrument panel for the compressor unit is mounted on the compressor frame. It includes a filter system pressure
gauge, a service line pressure gauge and an hourmeter. The instrument panel for the engine unit includes an hourmeter
only Labels are installed in identifying the service of each instrument. Separate mounting brackets are provided for each
hourmeter, labeled HOURMETER ON and HOURMETER OFF. The hourmeters are designed to record operating time by
vibration of the unit while the instrument face Is in a horizontal position. The HOURMETER OFF bracket allows
installation of the hourmeter with the face in a vertical position to permit transportation of the model CAPITANO-PD
without creating an error In the operating hours record.
2-2. OPERATOR'S CONTROLS AND INDICATORS.
Figure 2-1 and Table 2-1 provide a general description of the operator's controls and indicators for the model CAPITANO-
PD spilt frame breathing air reciprocating compressor unit.
2-3. SAFETY DEVICES.
a.
Purification Cylinder Venting Bore. The purification cylinder is arranged to allow air to escape if the cartridge is
missing or not properly seated in place With the cartridge in place, the vent closes, allowing air pressure to build up. This
safety device, located inside purifier cylinder, prevents the operator from delivering unpurified air.
b.
Drain/Purge Valves. Drain valves, located at the bottom of the oil/water separators, allow pressure and
accumulated condensate to be bled from the system. See Figure 1-3, Compressor Pneumatic Air Flow Diagram There is
also a purge valve located under the Pressure Maintaining Valve to purge pressure from the system
c.
Pressure Maintaining Valve . This valve is a fluid pressure regulating valve, it is located downstream of the
purification cylinder and is factory set at 2000 psi (138 bar). Air cannot be delivered to the service outlet until the
purification cylinder has reached an internal pressure of 2000 psi.
d.
Safety Relief Valves. Safety relief valves are installed on each stage of the compressor. Whenever air pressure
upstream of each valve exceeds the preset relief pressure, the valve will open and dump air pressure to atmosphere.
Once the upstream pressure goes below the safety relief valve pressure setting, the valve will close.
2-1
