Removal And Installation Of Engine And Hydraulic Pump Assembly - Komatsu ecot3 PC300LC-8 Shop Manual

50 Disassembly and assembly
Removal and installation of
engine and hydraulic pump
assembly
Special tools
Part number
796-460-1210 Oil stopper
C
796-770-1320 Adapter
Removal
k
Disconnect the negative (–) terminal from
battery.
k
Lower the work equipment to the ground
and stop the engine. Then, loosen the
hydraulic oil filler cap slowly to release the
internal pressure.
a Attach an identification tag to each piping to
avoid a mistake in the position of installation
later.
1. Remove the hydraulic tank strainer and stop
the flow of oil using tool C.
a When not using tool C, remove the drain
plug to drain oil from the hydraulic tank
and piping.
6
Hydraulic tank: 248 l
2. Drain the engine coolant.
6
Coolant: 36 l
3. Open the engine hood.
4. Remove clamps (1) and (2), U-bolt (3), and air
intake tube (4).
PC300, 350-8
Part name
q 1
q 1
[*1]
5. Remove air intake connector (5).
6. Remove belt cover (6) and fan guard (7).
1
7. Disconnect hoses (8), (9), and (10) from the
top of the radiator.
8. Disconnect connector M34 (11).
9. Loosen bolt (12) and remove air conditioner
compressor belt (13).
10. Remove air conditioner compressor (14) and
bracket together and move them to a place
where they will not be obstacle to the work.
11. Disconnect terminal M23 (15).
SEN02636-03
[*2]
[*3]
31