Komatsu ecot3 PC300LC-8 Shop Manual page 1007

50 Disassembly and assembly
Installation
q Installation is done in the reverse order of
removal.
[*1]
a When installing the air conditioner circuit hoses,
take care so that dirt, water, may not enter.
a Make sure before the installation that there is
O-ring at the piping connector of the air condi-
tioner hose.
a Check that there is no defect or deterioration on
the O-ring.
a When connecting the refrigerant piping, coat
the O-ring with compressor oil for new refrig-
erant (R134a) (Denso: ND-OIL8, Zexel:
ZXL100PG (PAG 46 or equivalent)).
3
Mounting bolt: 8 – 12 Nm {0.8 – 1.2 kgm}
[*2]
a Make sure that the hoses do not lap over.
q Filling air conditioner circuit with refriger-
ant (R134a)
Fill the air conditioner circuit with refrigerant
(R134a).
a Filling quantity: 1000 ± 50 g
q Refilling with coolant
Add coolant through the coolant filler to the
specified level. Run the engine to circulate the
coolant through the system. Then, check the
coolant level again.
5
Coolant: Approx. 36 l
PC300, 350-8
SEN02641-02
25