Description

Doosan DH450 Excavator Shop Manual

Doosan DH450 Excavator Index:

GENERAL INFORMATION
Engine Specificatim
Engine Lubricating Circuits
Oil Cooler Oil filter
Turbochatger
ENGINE ASSEMBLY
Checking Compression •
Remmfng and Installing Oil Spray hts
Detaching. Attaching Timing Case. Replacing Seal and
Checking cam Shaft hiat
R«nmfng and Installing Liners
and Installing Pilot Bearing
and Installing
Reojacing Ring
Replacing Cranksnaft Rear Seal
Crankshaft Frmt Oil Seal •
Removing and Installing Crankshaft
Replacing Con-rod Bearings •
Measuring Piston Protrusion
Rem,m4ng end Installing Piston With Connecting rod
Replacing Piston Rings • •
Detaching. Attaching Piston and Checking COO •rod

Remoung and Installing Cy’inder head
Acjusting valws
Removing and Installing Valves
Removdng and Installing Valve Seats •
Removing and Installing valve Guides
Rernovfng and Insulling Camshaft

LUBBRICATING SYSTEM
I. Remosdng and Installing Oil Pan •
2. Replacing Oil Fillter •
3- Removing and Installing Oil Cooler
4. R«nov4ng and Installing Oil Pump •
5. Removing and Installing Oil separabr
ENGINE ASSEMBLY
1. Replacing Water pump
2. Rernoung and Installing Water Pump
3. Replenishing Coding
4. Removing and Installing Mechanical Seal
FUEL SYSTEM
Injection Timing•••
and Installing Injection Nozzle •
Checking and Replacing Injection Nozzle •
RemoUng and Installing Injecüon Pump
Removing and Installing Intake Manifold •
Removing and Installing Exhaust Manifold
TURBOCHARGER
I. Rernoung and Installing
2. Checking Rotor Shaft Axial Play
3. Checking Rotor Shaft Radial

Doosan