TM 5-4310-385-13 p. Drive Pulley (18).  Mounted on electric motor shaft with square key and setscrew to power compressor. q. V-Belts (19).  Two belts provides coupling between drive pulley and compressor flywheel. r. Flywheel (20).  Mounted on compressor crankshaft with square key and setscrew.  Three fan blades provide air cooling of cylinder heads, intercooler and aftercooler. s. Belt Guard (21).    Two  piece  metal    frame  provides  enclosure  of  drive  pulley,  V-belts,  and  flywheel.    Vented  for proper air flow. 1-10.  EQUIPMENT DATA. Air Compressor Manufacturer  ....................... C & H Distributors, Inc. Model  ......................................................... 20-918 Output  ........................................... 5 cfm at 175 psi Type  ................ Electric motor driven, tank mounted Length .............................................. 36 in. (91 cm) Width  ............................................... 13 in. (33 cm) Height  ............................................31.5 in. (80 cm) Weight, net  ................................. 180 lbs.  (81.6 kg) Weight, shipping  ....................... 250 lbs.  (113.4 kg) Air Compressor Pump Manufacturer...........................................Champion Model  ..................................................... CAVCHM Type .................................................V-2, two stage Bore and Stroke Low pressure stage............................ 2-5/8 x 2 in. (6.68 x 5.10 cm) High pressure stage  ............................. 1-3/4 x 2 in. (4.45 x 5.10 cm) Pumping rate  ................................. 5 cfm at 175 psi Air filter element .............................. Foam filter with felt silencer Electric Motor Manufacturer  ................. Baldor Electric Corporation Model  ....................................................... MM3155 RPM .............................................................. 3450 Horsepower.......................................................... 2 Input requirements  .............................. 208-230/460 Full load current  ..................................... 5.9-5.6/2.8 Phase  .......................................................... Three Duty  ..................................................... Continuous Air Tank Pressure limit..................................200 psi (14 kPa) Capacity............................................ 20 gal.  (75 L) Air Hose Manufacturer........................ C & H Distributors, Inc. Length .............................................. 50 feet (15 m) Maximum pressure..........................200 psi (14 kPa) Inflator gage  .......................... Milton Industries, Inc. Magnetic Starter Manufacturer  ............................ Furnas Electric Co. Model No............................................... 14CP32AD Enclosure .................................................NEMA 12 Phase ........................................................... Three Type  ....................................................... Magnetic Overload relay ..................................... Melting alloy Pressure Switch Manufacturer  ............................ Furnas Electric Co. Model  ................................................... 69MC8Y2A Type  ...................................... Diaphragm operated Cut-in pressure (adjustable) ......................... 160 psi Cut-out pressure (adjustable)........................ 190 psi Differential (adjustable) ............................. 30-45 psi Safety Relief Valve Manufacturer........................... Control Devices, Inc. Model...................................................... SV25-200 Relief pressure ...........................200 psi, factory set non-adjustable Safety Interstage Valve Manufacturer  .......................... Control Devices, Inc. Relief pressure .............................60 psi, factory set non-adjustable Pressure Gage Range ...................................................... 0-300 psi Check Valve Manufacturer  .......................... Control Devices, Inc. Type  ..............................................Spring and disc Electric Motor Pulley Manufacturer  ........................................... Browning Model  .................................................2AK 28 x 5/8 Type  ................................................... Two-groove V-Belts Model.............................................................. A-40 1-4