Radiator Hoses; Air Intake Piping - Doosan DX140R Shop Manual

Radiator Hoses

Maintenance Check
Check all hoses for cracks, cuts, or collapsing.
The silicone engine coolant hose will exhibit swelling
NOTE:
due to the elasticity of the hose.

Air Intake Piping

Maintenance Check
Visually inspect the intake piping daily for wear points and
damage to piping, loose clamps, or punctures that can damage
the engine.
Replace damaged pipes, and tighten loose clamps, as
necessary, to prevent the air system from leaking.
• Torque Value: 8 n.m (72 inlb)
Check for corrosion under the clamps and hoses of the intake
system piping.
Corrosion can allow corrosive products and dirt to enter the
intake system.
Disassemble and clean, as required.
QSB4.5 Engine
Figure 51
Figure 52
SP001671
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