Operation Manual
BX25.
RCK54(P)-23BX.
RCK60B-23BX.
LA240,
BT601,
WSM
FRONT LOADER
[5]
HYDRAULIC FITTINGS
• Adaptors, Elbows and Others
Item Shape Thread size
Tightening
torque
I
N'm
kgf'm
IbHt
Adjustable elbow,
Adaptor
(O-ring
port) (UNF)
~~
a
a
[A1
Nut
Type
[B1
No
Nut
Type
a:
O-ring
9/16
37
to 44
3.8
t04.5
I
27
to
33
3/4
48 to
54
4.9 to 5.5
35to
40
7/8
77 to 85
7.9 to 8.6
I
57
to
62
Hose fitting, Flare
nut
(UNF)
~
alE
9/16
22
to 25
2.3 to 2.6
16
to 19
3/4
36
to 40 3.6 to
4.1
26 to 30
7/8
43 to
50
4.4 to 5.0
32
to
36
Adaptor
(NPT)
~
1/4
30 to
50
3.1
to 5.0 23 to
36
3/8
39 to 60
4.0 to
6.1
29 to
44
1/2 49 to
58
5.0 to 5.9
36
to 43
• NOTE
• When
connecting
a
hose
with
flare nut, after
tightening
the
nut
with
specified
torque,
return
it
approximately 45 degrees (0.79 rad) and re-tighten
it
to
specified torque.
W1015484
[6]
TIGHTENING TORQUES OF SCREWS, BOLTS AND NUTS
ON
THE
TABLE BELOW ARE ESPECIALLY SPECIFIED
Item
N'm
kgf·m
ft-Ibs
Boom cylinder piston mounting nut 150 to 180
15.3 to 18.3
=
111
to 132
Bucket cylinder piston mounting nut 350 to 400
35.7 to 40.7 259 to 295
Main frame mounting bolt and nut (M14)
147
15.0
108
W1012736
8-S8