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

SEN02638-03
Removal and installation of coun-
terweight assembly
Special tools
Part number
Commercially
Impact wrench
available
Z Socket wrench
Commercially
(Width across flats :
available
46 mm)
a Use the impact wrench and socket wrench cor-
responding to the specified torque for mounting
bolts.
Removal
k
Disconnect the negative (?) terminal from
battery.
1. Remove the accessories on the counterweight
according to the following procedure.
(Mirror specification)
1) Remove mirror (1).
2) Sling counterweight assembly (2).
(1-rear camera specification)
1) Disconnect connector A40 (3) of camera 1
(RC1).
2) Disconnect connector CN-L09 (5) and wiring
harness clamps (6) from rear working lamp
(4). (If equipped)
3) Sling counterweight assembly (2).
(2-rear camera specification)
1) Disconnect connector A40 (3) of camera 1
(RC1).
2) Disconnect connector CN-L09 (5) and wiring
harness clamps (6) from rear working lamp
(4). (If equipped)
3) Remove cover (7).
14
Part name
q
1
q
1
50 Disassembly and assembly
4) Disconnect coaxial cable connector (8) of
camera 2 (RC2).
2. Install eyebolt [1] to counterweight assembly (2),
and sling.
3. Remove 4 mounting bolts (9).
a Record the locations where the shims were
used.
4. Lift off counterweight assembly (2) horizontally
using wire or chain block.
a Be careful not to bump it against the engine
or radiator or cooler assembly.
4
Counterweight assembly:
[*1]
[*2]
5,500 kg
PC300, 350-8