M0.4 After every 500 working hours
Check the tightening torque:
- of the fixing rods of the crane; consult the following table in order to find it’s
value according to the bolt diameter:
Table of the tightening torques of the fixing rods of the crane on the vehicle
From “C0404 Kit for crane fixing”.
D. Fixing Tightening
rods torque = Nm
M22x1,5 300
M24x2,0 400
M27x2,0 600
M30x2,0 471
M33x2,0 1200
M39x3,0 1800
- of the securing bolts for the ram pins and of all the other bolts and screws,
where the tightening torque is not expressly indicated, consult the following
table in order to find it’s value according to the bolt diameter and class.
Table of the bolts tightening torque with average friction value (0,15) and average-
good tightening accuracy (C).
From ... “ELEMENTS DE FIXATION - ASSEMBLAGES VISSES” (AFNOR E 25-030 1984)
Diameter Class 8.8 Class 10.9 Class 12.9
Bolt = D Torque = Nm Torque = Nm Torque = Nm
3 1,06 1,56 1,83
4 2,44 3,58 4,19
5 4,83 7,10 8,30
6 8,30 12,30 14,30
820 29 35
10 40 59 69
12 69 102 119
14 111 163 191
16 173 255 298
18 239 352 412
20 339 499 584
22 466 685 802
24 584 858 1004
27 865 1271 1487
30 1173 1723 2016
33 1594 2342 2740
36 2046 3006 3517
39 2658 3905 4570
Check the guide shoe wear as it affects the sliding section tolerances; if the
clearances are considerable, damage to the rams and the structure may occur.
Clean the air filter placed in the top of the oil tank filter cap.
Completely replace the hydraulic oil and the filter cartridges.
(!) The waste oil and the filter cartridges MUST be disposed of by
authorized persons.
M0.4
MAINTENANCE
INSTRUCTIONS
F 170A
41
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