Doosan DX60R Shop Manual page 346

Precautions for Installation
1. The valve and stopper must be installed in their specific
orientations. As shown in the figure above, install the valve
and stopper so that they are located on the left-hand side
of the lead valve.
2. Install the valve by tightening the machine screw while
ensuring that it is evenly positioned inside the case
window.
3. The machine screw must be tightened with torque of
± ±
1.37 0.2N•m(14
4. After tightening the machine screw, mark it with a marker
to indicate that it has already been tightened.
EGR Pipe and Other Connecting Elbows
The exhaust gas passage is subject to carbon deposition when
used over time. To remove deposited carbon from the gas
passage, use compressed air (0.19MPa(2kg/cm2) or lower). If
the exhaust gas passage is heavily fouled, clean it by dipping it
in carbon cleaner, kerosene, or some other liquid capable of
removing carbon.
Always be environmentally responsible.
Follow the guidelines of the EPA or other governmental
agencies for the proper disposal of hazardous materials
such as engine oil, diesel fuel and engine coolant. Consult
the local authorities or reclamation facility.
Never dispose of hazardous materials irresponsibly by
dumping them into a sewer, on the ground, or into ground
water or waterways.
Failure to follow these procedures may seriously harm the
environment.
Installing EGR Related Components/Parts
To install these components/parts, reverse the disassembly
procedure described above: thus install the lead valve, spacer,
EGR valve, EGR pipe, EGR cooler, elbow, cooler cooling water
hose, and EGR cooling water hose exactly in this order.
The EGR system uses steel gaskets at the joints between its
components/parts. When
components/parts and reinstall them, replace the steel gaskets
between them with new correct ones.
Engine
Page 166
2kgf•cm).
CAUTION
you remove
Figure 240
the system's
FG009156
SP001693