© Jul.2020
1-12
GTJZ0612E&0812E&1012E&1212E Maintenance Manual
HYDRAULIC HOSE AND FITTING
TORQUE PROCEDURE
The hydraulic hose and fitting must be torqued to the
following requirements when they are installed.
1.
Replace the O-ring if damaged. The O-ring cannot
be reused if the fitting or hose end has been tight-
ened beyond finger tight.
2.
Lubricate the O-ring before installation.
3.
Properly seat the O-ring.
4.
Position the tube and nut squarely on the fitting.
Then tighten the nut as required.
5.
Tighten the nut or fitting to the torque specified in
the appropriate table.
6.
Operate all machine functions and inspect the hose,
fittings and related components to confirm there are
no leaks.
FASTENER TORQUE SPECIFICATIONS
Unless special torque requirements are stated in this manual or other instructions, torque metric bolts to the values
listed in the table bellow.
Table 1-10 Fastener Torque Specifications – Metric
NOMINAL
DIAMETER
(MM)
PITCH (MM)
CLASS 8.8
CLASS 10.9
CLASS 12.9
5
0.8
7 Nm (5 ft-lb)
9 Nm (7 ft-lb)
10 Nm (7 ft-lb)
6
1
12 Nm (9 ft-lb)
15 Nm (11 ft-lb)
18 Nm (13 ft-lb)
8
1.25
30 Nm (22 ft-lb)
35 Nm (26 ft-lb)
42 Nm (31 ft-lb)
1
30 Nm (22 ft-lb)
37 Nm (27 ft-lb)
45 Nm (33 ft-lb)
10
1.5
55 Nm (41 ft-lb)
75 Nm (55 ft-lb)
85 Nm (63 ft-lb)
1.25
56 Nm (41 ft-lb)
77 Nm (57 ft-lb)
87 Nm (64 ft-lb)
1
60 Nm (44 ft-lb)
80 Nm (59 ft-lb)
92 Nm (68 ft-lb)
12
1.75
95 Nm (70 ft-lb)
125 Nm (92 ft-lb)
150 Nm (111 ft-lb)
1.5
100 Nm (74 ft-lb)
130 Nm (96 ft-lb)
155 Nm (114 ft-lb)
1.25
105 Nm (77 ft-lb)
135 Nm (100 ft-lb)
160 Nm (118 ft-lb)
14
2
150 Nm (110 ft-lb)
200 Nm (148 ft-lb)
230 Nm (170 ft-lb)
1.5
165 Nm (122 ft-lb)
210 Nm (155 ft-lb)
250 Nm (184 ft-lb)
16
2
230 Nm (170 ft-lb)
300 Nm (221 ft-lb)
360 Nm (266 ft-lb)
1.5
250 Nm (184 ft-lb)
320 Nm (236 ft-lb)
380 Nm (280 ft-lb)
18
2.5
320 Nm (236 ft-lb)
420 Nm (310 ft-lb)
500 Nm (369 ft-lb)
1.5
360 Nm (266 ft-lb)
470 Nm (345 ft-lb)
550 Nm (406 ft-lb)
20
2.5
450 Nm (332 ft-lb)
600 Nm (443 ft-lb)
700 Nm (516 ft-lb)
1.5
500 Nm (369 ft-lb)
650 Nm(479 ft-lb )
770 Nm (568 ft-lb)
22
2.5
600 Nm (443 ft-lb)
800 Nm (590 ft-lb)
980 Nm (723 ft-lb)
2
650 Nm (479 ft-lb)
850 Nm (627 ft-lb)
1050 Nm (774 ft-lb)
Summary of Contents for GTJZ0612E
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