2. Arrangement of parts
All parts disassembled should be arranged
deliberately for the purpose of effective
reassembly.
3. Cleaning parts for reuse
Be sure to separate the parts to be reused for
easy indetification.
Parts
When replacing parts, be sure to use Doosan
genuine parts.
D439E Service Manual
Replacement
Standard values such as torques and adjustments
must be strictly observed in the all parts reassembly.
If removed, some of the following parts must be
replaced with new ones depending on their installing
positions.
1. Oil seals
2. Gaskets
3. O-rings
4. Lock washers
5. Cotter pins (split pins)
6. Plastic nuts
7. Sealant should be applied to gaskets.
8. Oil should be applied to the moving components
of parts.
9. Specified oil or grease should be applied to the
prescribed locations (oil seals, etc.) before
assembly.
12
1. General Information