Hitachi EX20UR-2 Manual page 223

8. Connect all front attachment hoses (1).
: 19 mm
r
: 29.5 N-rn ( 3 kgf-m, 22 lbf-ft )
/3 IC, : 22 mm
: 39 N-m ( 4 kgf-m, 29 lbf-ft )
EX4OU
R-2
: 39 N-m ( 4 kgf-m, 29 lbf•ft )
7. Connect the return and drain hoses to hydraulic oil
EX3OUR-2
tank (1).
,=='•
: 17 mm
r : 20 N-m ( 2 kgf-m, 15 lbf•ft )
: 19 mm
: 29.5 N-m ( 3 kgf-m, 22 lbf•ft )
1=14 : 22 mm
W562.02-05-003
W563-02-05-001
UNDERCARRIAGE /
Center Joint
6. Connect suction hose (1) and return hose (3) at the
bottom side of the hydraulic oil tank using clamps
(2).
: 9.8 N-rn ( 1 kgf-m, 7.2 lbf•ft )
W562-02-05-004
W562-02-05-002
W03-03-17