Doosan D35S-5 Service Manual page 11

Tightening Torque Table of Standard Parts
Bolt nominal diameter
M5
M6
M8
M10
M12
M14
M16
M18
M20
M22
M24
1. The torques shown in the table are standard
values under the following conditions :
• Nuts and bolts are made of galvanized steel bar.
• Galvanized plain steel washers are inserted.
• All nuts, bolts and plain washers are dry.
2. The torques in the table are not applicable under
following conditions:
• When spring washers, toothed washers and
other similar parts are inserted.
• If plastic parts are fastened.
• If self-tapping screws or self-locking nuts are
used.
• If threads and surfaces are coated with oil.
D439E Service Manual
Pitch (mm)
0.8
1.0
1.25
1.25
1.25
1.5
1.5
1.5
1.5
1.5
1.5
NOTE
Torque Nm (kg.cm, lb.ft)
Head Mark 4
3~4 (30~40, 2.2~2.9)
5~6 (50~60, 3.6~4.3)
12~15 (120~150, 9~11)
25~30 (250~300,
18~22)
35~45 (350~450,
25~33)
75~85 (750~850,
54~61)
110~130 (1,100~1,300,
54~61)
160~180 (1,600~1,800,
116~130)
220~250 (2,200~2,500,
160~180)
290~330 (2,900~3,300,
210~240)
360~420 (3,600~4,200,
260~300)
3. If you reduce the torques in the table to the
percentage indicated below-under the following
conditions, it will be the standard value.
• If spring washers are used : 85%
• If threads and bearing surfaces are stained
with oil : 85%
9
Head Mark 7
5~6 (50~60, 3.6~4.3)
9~11 (90~110, 6.5~8.0)
20~25 (200~250,
14.5~18.0)
30~50 (300~500,
22~36)
60~80 (600~800,
43~58)
120~140 (1,200~1,400,
85~100)
180~210(1,800~2,100,
130~150)
260~300(2,600~3,000,
190~215)
360~420 (3,600~4,200,
260~300)
480~550(4,800~5,500,
350~400)
610~700 (6,100~7,000,
1. General Information