Removal And Installation Of Revolving Frame Assembly - Komatsu ecot3 PC300LC-8 Shop Manual

SEN02638-03
Removal and installation of
revolving frame assembly
Removal
k
Extend the arm and bucket fully, lower the
work equipment to the ground and then
move the work equipment lock lever to the
LOCK position.
k
Disconnect the negative terminal (?) from the
battery.
1. Remove the work equipment assembly For
details, see ÅgRemoval and installation of work
equipment assemblyÅh .
2. Remove the counterweight assembly. For
details, see ÅgRemoval and installation of coun-
terweight assemblyÅh .
3. Disconnect 4 boom cylinder hoses (1).
a Plug the hose to stop oil flow-out.
4. Sling boom cylinder assembly (2).
12
50 Disassembly and assembly
5. Remove plate (3) and pin (4), and then lift boom
cylinder assembly (2) to remove.
a Remove the boom cylinder assembly on the
opposite side in the same manner.
4
Boom cylinder assembly:
6. Sling engine hood (5) temporarily.
a When supporting the engine hood, take care
not to damage the rubber seal.
7. Remove the engine hood mounting bolt and then
remove pin (6).
8. Lift off work equipment assembly (5).
260 kg
PC300, 350-8