LA271 • LA301 • LA351 • LA401 •
LA272· LA302· LA352·
LA402 WSM, 17021
SERVICING SPECIFICATIONS
SERVICING
Item Factory Specification
Allowable Limit
Relief Valve
Setting Pressure 13.1 to 13.8 MPa
-
Condition
LA271
1LA272 133.5 to 140.5 kgflcm
2
• Engine Speed ....... Maximum
LA351
1LA352 1900 to 2000 psi
• Oil Temperature .... 45 to 55
"C
LA401
1LA402
113to131"F
LA301 1LA302
14.5 to 15.2 MPa
-
147.5 to 154.6 kgf/cm
2
2100 to 2200 psi
Piston Rod
Bend
-
0.25
mm
0.0098
in.
17021800010
TIGHTENING TORQUES
[1] GENERAL USE SCREWS, BOLTS AND NUTS
Screws, bolts and nuts whose tightening torques are not specified
in
this Workshop Manual should
be
tightened
according to the table below.
American standard cap screws with UNC or UNF
Metric cap screws
threads
Grade
SAE 5 or 8 Grade
Property class 8.8
(Approx. SAE grade 5)
~t
N·m
kg/·m
ft-Ibs
~
N·m
kg/·m ft-Ibs
Size
Size
1/4
9.8 to 11.7 1.0 to 1.2 7.2 to 8.6
M6
9.8 to 11.2 1.0 to
1.1
7.2 to 8.3
5/16
19.0to23.1
1.9 to 2.4 14 to 17
M8
23.6 to 27.4
2.4 to 2.8
17.4 to 20.2
3/8
33.9 to 40.7
3.5
to
4.2 25 to 30
M10
48.1 to 55.8 4.9 to 5.7
35.5 to 41.2
1/2
88.1
to 105.8
9.0 to 10.8 65 to 78
M12
77.5 to 90.1 7.9 to 9.2
57.2 to 66.5
9/16
122.0 to 146.4 12.4 to 14.9 90 to 108
M14
124to147
12.6 to 15.0
91.2 to 108
5/8
176.3 to 211.5 18.0 to 21.6 130 to 156
M16
196 to 225 20.0 to 23.0
145 to 166
-
-
- -
M18
275 to 318 28.0 to 32.5
203 to 235
12210800110
[2]
HYDRAULIC FITTINGS
Item
Thread size
Tightening torque
N·m
kg/·m ft-Ibs
Adjustable elbow
9/16 37 to 44 3.7 to 4.6
27
to 33
and adapter
3/4 47 to 54 4.8 to 5.5 35 to 40
9/16 22 to 25 2.2 to 2.6
16 to 19
Hose fitting and
3/4
35 to
41
3.6 to
4.1
26 to 30
flare nut
7/8
65 to
71
6.6 to 7.2 48 to 52
1/4
30 to 35
3.1
to 3.6
22 to 26
Adapter (NPT)
3/8
39 to 44
3.9 to 4.4 28 to 32
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 and re-tighten
it
to specified torque.
12210800120
S-5
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