Air Compressor (Not Used); Charge-Air Cooler; Charge-Air Piping - Doosan DX140R Shop Manual

Air Compressor (Not Used)

Maintenance Check
Depending on application, it is possible engines will
NOTE:
not be equipped with an air compressor.
Inspect compressor housing for cracks and damage.
Inspect hydraulic pump couplings for cracks, wear, or damage (if
equipped).
Inspect air plumbing for splits or cracks.
Inspect the air compressor mounting nuts, including support
bracket, for loose or damaged hardware.
Operate the engine and check for correct compressor operation
and air, oil, and coolant leaks.
• Mounting 18 mm 77 n.m (57 ftlb)
• Bracket 10 mm 45 n.m (33 ftlb)

Charge-Air Cooler

Maintenance Check
Inspect the charge-air cooler (CAC) for dirt and debris blocking
the fins. Check for cracks, holes, or other damage. If damage is
found, refer to the vehicle, vessel, or equipment manufacturer.

Charge-Air Piping

Maintenance Check
Inspect the charge-air piping and hoses for leaks, holes, cracks,
or loose connections. Tighten the hose clamps if necessary.
Refer to the vehicle or equipment manufacturer's specifications
for the correct torque value.
QSB4.5 Engine
Page 68
Figure 48
Figure 49
Figure 50
SP001671