Komatsu PC210-10 DEMOLITION BASE SPEC., Руководство по эксплуатации и техническому обслуживанию

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STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS MAINTENANCE
4–8
STANDARD TIGHTENING TORQUE FOR BOLTS AND
NUTS
Standard tightening torque for bolts and nuts:ALL-M140-03BP00A
TIGHTENING TORQUE LIST
Tightening torque list:ALL-M140-03BP02A
k
CAUTION
If nuts, bolts, or other parts are not tightened to the specified torque, it will cause looseness or damage to
the tightened parts, and this will cause failure of the machine or problems with operation. Always be care-
ful when tightening parts.
Unless otherwise specified, tighten the metric nuts and bolts to the torque shown in the table below.
If it is necessary to replace any nut or bolt, always use a Komatsu genuine part of the same size as the part that is
removed.
q
Apply the following table for hydraulic hose.
Thread
diameter
of bolt a
(mm)
Width
across
flats b
(mm)
Tightening torque
Target value Allowable range
6
8
10
12
14
10
13
17
19
22 13.2{1.35}
31{3.2}
66{6.7}
113{11.5}
172{17.5}
11.8–14.7{1.2–1.5}
27–34{2.8–3.5}
59–74{6.0–7.5}
98–123{10.0–12.5}
153–190{15.5–19.5}
16
18
20
22
24 24
27
30
32
36 260{26.5}
360{37.0}
510{52.3}
688{70.3}
883{90.0} 235–285{23.5–29.5}
320–400{33.0–41.0}
455–565{46.5–58.0}
610–765{62.5–78.0}
785–980{80.0–100.0}
27
30
33
36
39 41
46
50
55
60 1295{132.5}
1720{175.0}
2210{225.0}
2750{280.0}
3280{335.0} 1150–1440{118.0–147.0}
1520–1910{155.0–195.0}
1960–2450{200.0–250.0}
2450–3040{250.0–310.0}
2890–3630{295.0–370.0}
Hose
nominal
number
Width
across flat
a (mm)
Tightening torque
Target value Allowable range
02 19 44{4.5} 35–54{3.5–5.5}
03
22 74{7.5} 54–93{5.5–9.5}
24 78{8.0} 59–98{6.0–10.0}
04 27 103{10.5} 84–132{8.5–13.5}
05 32 157{16.0} 128–186{13.0–19.0}
06 36 216{22.0} 177–245{18.0–25.0}