Kubota U48-4 User Manual

Maintenance
158
Tightening torque for hydraulic adapters
Tightening torque for elbow pipe joints with shim
Thread size
(Pipe union)
Tightening torque
Nm
kgf#m
Wrench size
(guide number)
Comments
Steel pipe
(OD)
R (conical thread) G (round thread)
1/8"
19.6~29.4
2.0~3.0
--
17 mm
0.67 in.
When using
a steel pipe.
8 mm
0.31 in.
1/4"
36.3~44.1
3.7~4.5
With O-ring
Tightening torque for
connections
58.8~78.5
6~8
19 mm
0.75 in.
12 mm
0.47 in.
3/8"
68.6~73.5
7.0~7.5
With O-ring
Tightening torque for
connections
78.5~98.1
8~10
23 mm
0.91 in.
15 mm
0.59 in.
1/2"
83.4~88.3
8.5~9.0
With O-ring
Tightening torque for
connections
117.7~137.3
12~14
26 mm
1.02 in.
16 mm
0.63 in.
3/4"
166.6~181.3
17.0~18.5
Size Nm
kgf#m
G1/8 15.0~16.5 1.5~1.7
G1/4 24.5~29.4 2.5~3.0
G3/8 49.0~53.9 5.0~5.5
G1/2 58.8~63.7 6.0~6.5
G3/4, G1 117.6~127.4 12.0~13.0
G1,1/4 220.5~230.3 22.5~23.5
7/8-14UNF 55.9~60.8 5.7~6.2

Kubota U48-4 Specifications

General

Brand	Kubota
Model	U48-4
Category	Compact Excavator
Language	English