6 - Maintenance
102
Service and Maintenance Intervals
Tightening Bolts and Nuts
When tightening bolts and nuts as a part of periodic service or due to replacement of spare parts, it is important to apply
the correct torque. This will prevent accidents and prolong the lifetime of the parts included in the bolted joints.
If not otherwise stated in this book, please tighten bolts and nuts using the following torques.
*Exceeding this value results in a great risk of deforming the bolt.
±
WARNING! Applying too little torque will result in these risks:
±
WARNING! Exceeding the maximum torque will result in these risks:
Material: Surface treated steel
Material: Stainless steel
Bolt size
(metric)
Recommended
torque
Maximum
torque*
Bolt size
(metric)
Recommended
torque
Maximum
torque*
M4
21 In/lb (2.4 Nm)
27 In/lb (3 Nm)
M4
15 In/lb (1.7 Nm)
19 In/lb (2.1 Nm)
M5
44 In/lb (5 Nm)
53 In/lb (6 Nm)
M5
31 In/lb (3.5 Nm)
37 In/lb (4.2 Nm)
M6
71 In/lb (8 Nm)
89 In/lb (10 Nm)
M6
50 In/lb (5.6 Nm)
62 In/lb (7.0 Nm)
M8
15 Ft/lb (20 Nm)
18 Ft/lb (25 Nm)
M8
124 In/lb (14 Nm)
155 In/lb (17.5 Nm)
M10
29 Ft/lb (39 Nm)
37 Ft/lb (50 Nm)
M10
20 Ft/lb (27 Nm)
26 Ft/lb (35 Nm)
M12
52 Ft/lb (70 Nm)
63 Ft/lb (85 Nm)
M12
36 Ft/lb (49 Nm)
44 Ft/lb (60 Nm)
M14
83 Ft/lb (112 Nm)
103 Ft/lb (140 Nm)
M14
58 Ft/lb (78 Nm)
72 Ft/lb (98 Nm)
M16
133 Ft/lb (180 Nm)
159 Ft/lb (215 Nm)
M16
93 Ft/lb (126 Nm)
111 Ft/lb (151 Nm)
M18
177 Ft/lb (240 Nm)
225 Ft/lb (305 Nm)
M18
124 Ft/lb (168 Nm)
158 Ft/lb (214 Nm)
M20
258 Ft/lb (350 Nm)
321 Ft/ lb (435 Nm)
M20
181 Ft/lb (245 Nm)
225 Ft/lb (305 Nm)
M22
361 Ft/lb (490 Nm)
435 Ft/lb (590 Nm)
M22
253 Ft/lb (343 Nm)
305 Ft/lb (413 Nm)
M24
443 Ft/lb (600 Nm)
553 Ft/lb (750 Nm)
M24
310 Ft/lb (420 Nm)
387 Ft/lb (525 Nm)
M27
720 Ft/ lb (976 Nm)
811 Ft/lb (1100 Nm)
M27
504 Ft/lb (683 Nm)
568 Ft/lb (770 Nm)
M30
959 Ft/lb (1300 Nm)
1103 Ft/lb (1495 Nm)
M30
671 Ft/lb (910 Nm)
772 Ft/lb (1047 Nm)
•
bolted joints will rattle and thus fail under fatigue
•
bolts are being worn quickly and thus will not fulfill their design purpose
•
bolted joints will come loose
•
accidents caused by assembled parts coming apart due to bolts or nuts failing or falling off.
•
damaging or stripping the threads and deforming the bolt
•
bolt heads will be broken
•
bolted joints will come loose
•
accidents caused by assembled parts coming apart due to bolts breaking at a later time.
Содержание COMMANDER 4500
Страница 2: ......
Страница 4: ......
Страница 10: ...Table of Contents 8...
Страница 12: ...1 Welcome 10...
Страница 48: ...3 Description 46...
Страница 96: ...5 Operation 94...
Страница 99: ...6 Maintenance 97 Lubrication and Oiling Plan Boom Width 80 100 10 10 10 C 500 C 50 C 50 10...
Страница 100: ...6 Maintenance 98 Lubrication and Oiling Plan Boom Width 120 10 C 500 C 50 10...
Страница 129: ...6 Maintenance 127 At the same time adjust the two stop bolts to align the boom sections...
Страница 142: ...6 Maintenance 140...
Страница 162: ...8 Technical Specifications 160...
Страница 168: ...Index 166...
Страница 169: ......