Removal And Installation Of Operator's Cab And Floor Frame Assembly - Komatsu WA250-6 Shop Manual

SEN03858-00
Removal and installation of
operator's cab and floor frame
assembly
Removal
k
Stop the machine on a level ground and set
the lock bar to the frame to fix the front and
rear frames.
k
Lower the work equipment to the ground,
stop the engine, apply the parking brake,
and put chocks under the tires.
k
Disconnect the cable from the negative (–)
terminal of the battery.
Precautions for handling refrigerant
q
k
Collect refrigerant (R134a) beforehand.
a
Ask professional traders for collecting
and filling the refrigerant (R134a).
a Never release the refrigerant (R134a)
to the atmosphere.
k
If the refrigerant (R134a) gets inside
ones eyes, it may cause blindness.
Therefore, make sure to wear protec-
tive glasses when collecting or filling
the refrigerant. Collecting and filling
work must be conducted by a qualified
person.
k
If the radiator coolant temperature is
high, you may scald yourself with the
hot coolant when disconnecting the
heater hoses and draining the coolant.
Wait until the coolant is cooled, and
then drain the coolant.
a The operator's cab of this machine forms one
unit with the floor frame.
1. Recover the refrigerant (R134a).
Loosen the radiator cap to drain the coolant.
2.
6
Radiator: 22 l
2
50-700

Removal and installation of operator's cab and floor frame assembly

3. Open and fix right engine side cover (1).
a
Check that the cover is locked securely.
1
4. Remove right fender (2).
4
Fender: 25 kg
5. Remove right covers (3), (4), (5) and (5a).
6. Remove hydraulic tank cover (6).
k
Loosen the hydraulic tank cap gradu-
ally to r elea se the pre ss ur e in the
hydraulic tank.
[*1]
7. Disconnect cab ground cable (7) from the
lower right of the floor.
Remove wiring harness clamp (8).
8.
700 Cab and its attachments
AJF00729
AJF00729
WA250, 250PZ-6