Inspect For Intake Leaks (Lp Engine Only); Replace Pcv Valve And Breather Element - Change (Lp Engine Only); Replace Oxygen Sensor (Lp Engine Only) - Doosan D60S-7 Operation & Maintenance Manual

Inspect for Intake Leaks
(LP Engine Only)
1. Visually inspect the intake manifold, throttle
assembly (4), and manifold adapters (3), for
looseness and leaks. Repair as necessary.
Replace PCV Valve and breather
element - Change
(LP Engine Only)
1. Loosen the hose clamps and remove the PCV
valve.
2. Assemble new PCV valve and hose.
3. Tighten the hose clamps
Replace Oxygen Sensor
(LP Engine Only)
Exhaust Tube
Muffler Ass'y
When indicated by MIL, replace oxygen sensors on
the exhaust tube and muffler assembly.
1. Stop engine and wait until the exhaust pipe and
exhaust pipe is cooled.
2. Disconnect the electrical connector of oxygen
sensor.
3. Remove oxygen sensor.
4. Assemble new
torque: 45 N∙m (32.5 lb∙ft)
5. Connect the electrical connector of oxygen
sensor.
251
Maintenance Section
oxygen sensor Tightening