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Cummins ISX11.9 CM2250 – Service Manual 018-022   Compressed Air System

Table of Contents

Specifications

Specifications

TOC

This section is for the Wabco™ 318 Single Boost Air Compressor.

Cylinders 1
Compressor Swept Volume @ 1800 RPM / 1MPa 5.3 liters per sec. [11.23 cfm]
Piston Displacement 318 cc [19.4 C.I.D.]
Bore 85 mm [ 3.35 in]
Stroke 56 mm [ 2.2 in]
Speed Engine Speed
Cooling Engine Coolant
Lubrication Engine Lubricating Oil

Plumbing Line Sizes:

Coolant Inlet and Outlet (pipe fitting) M18 x 1.5 STOR
Air Inlet (inside diameter) 20.5 mm [ 0.81 in]
Air Outlet (minimum inside diameter) M27 x 2 STOR
Unloader Port M10 x 1
Governor Mounting (direct) M8 x 1.25
Height, Overall (approximate) 310 mm [ 12.2 in]
Width, Overall (approximate) 160 mm [ 6.3 in]
Length, Overall (approximate) 293 mm [ 11.5 in]
Weight (approximate) 18.09 Kg [ 39.9 lb]

This section is for the DFL523 Twin Natural Aspirated Air Compressor.

Cylinders 2
Compressor Swept Volume @ 3000 RPM / 0.8MPa 15 liters per sec. [31.78 cfm]
Piston Displacement 523 cc [31.9 C.I.D.]
Bore 80 mm [3.15 in]
Stroke 52 mm [2.05 in]
Speed 1.16  x  Engine Speed
Cooling Engine Coolant
Lubrication Engine Lubricating Oil

Plumbing Line Sizes:

Unloader Port N/A
Governor Mounting (direct) N/A
Height, Overall (approximate) 250 mm [9.8 in]
Width, Overall (approximate) 160 mm [6.3 in]
Length, Overall (approximate) 320 mm [12.6 in]
Weight (approximate) 17.5 Kg [38.6 lb]

NOTE: In applications where duty cycles average 10 percent or more or air pressures are above 862 kPa [125 psi], use a discharge line with a minimum inside diameter of 15.9 mm [0.625 in] for single-cylinder compressors and 25.4 mm [1.00 in] for twin-cylinder compressors to prevent carbon buildup. Examples of these applications are as follows: refuse trucks, pickup and delivery trucks, transit buses, and equipment with high accessory air usage.

Last Modified:  20-May-2010