Hitachi ZAXIS 130-6N Operator's Manual page 386

Tightening Torque Chart
Bolt
Dia.
mm
N·m (kgf·m) (lbf·ft) N·m (kgf·m) (lbf·ft)
6
8 30 (3.0) (22)
10 65 (6.5) (48)
12 110 (11) (81)
14 180 (18) (133) 140
16 270 (27) (200) 210
18 400 (40) (300) 300
20 550 (55) (410) 400
22 750 (75) (550) 550
24 950 (95) (700) 700
27 1400 (140) (1030) 1050 (105)
30 1950 (195) (1440) 1450 (145)
33 2600 (260) (1920) 1950 (195)
36 3200 (320) (2360) 2450 (245)
d
CAUTION: If fixing bolts for counterweight are
loosened, consult your nearest authorized dealer.
IMPORTANT:
 Apply lubricant (e. g. white zinc B solved into spindle
oil) to bolts and nuts to stabilize their friction
coefficient.
 Remove soil, dust, and/or dirt from the nut and bolt
thread surfaces before tightening.
 Tighten nuts and bolts to specifications. If tightened
with excessively low or high torque, missing or
breakage of nuts and/or bolts may result.
MAINTENANCE
Hexagon Wrench
N·m
3.3 to 4.2 (0.3 to 0.4) (2.4 to 3.1)
20 (2.0) 15) 10
(
50 (5.0) 37) 20
(
90 (9) 66) 35
(
(14) 103) 55
(
(21) 155) 80
(
(30) 220) 120
(
(40) 300) 170
(
(55) 410) 220
(
(70) 520) 280
(
770) 400
(
1070) 550
(
1440) 750
(
1810) 950
(
(kgf·m) (lbf·ft)
(1.0) (7.4)
(2.0) (15)
(3.5) (26)
(5.5) (41)
(8.0) (59)
(12) (89)
(17) (125)
(22) (162)
(28) (205)
(40) (300)
(55) (410)
(75) (550)
(95) (700)
7-120
Socket Bolt
Wrench
Socket Bolt
size
mm
N·m (kgf·m) (lbf·ft)
10
13 20 (2.0) (15)
17 50 (5.0) (37)
19 90 (9) (66)
22 140 (14) (103)
24 210 (21) (155)
27 300 (30) (220)
30 400 (40) (300)
32
36
41
46
50
55
Wrench
size
mm
5
6
8
10
12
14
14
17