Screw Tightening Calibration - Interpump Group Pratissoli SM Serie Manual De Reparación

3

SCREW TIGHTENING CALIBRATION

Screw tightening must only be performed with a torque wrench.
Description
Casing cover M10x30 screw
G1/2x13 casing plug
Lifting bracket M16x30 screw
Reduction gear cover M10x40 screw
Ring gear stop M10x25 screw
Reduction gear box M10x40 screw
Upper and lower cover M6x14 screw
Bearing cover M10x30 screw
Con-rod fixing M10x1.5x80 screw
Piston guide M6x20 screw
Piston assembly
Choke fitting D.3 3/8M-3/8F
M8x50 screw supports
Head M16x280 screw
Liner M10x140 screw
* Achieve coupling torque tightening screws at the same time.
The screws - pos. 1-22-26 must be tightened with a torque wrench, lubricating the threaded shank with
Molybdenum Disulphide grease code 12001500.
** The support fixing screws must be tightened respecting the phases and order shown in the diagram in Fig. 130.
*** The head fixing screws must be tightened respecting the phases and order shown in the diagram in Fig. 131.
**** The liner fixing screws must be tightened respecting the phases and order shown in the diagram in Fig. 131.
Tightening gasket support screws pos. 22
Tightening M8x50 screws in the indicated sequence (1-2-3-
4-5-6-7-8-9-10) performed in a single phase of the indicated
torque
Exploded Drawing
Tightening head and liner screws pos. 1 and pos. 26
OPERATION 1: Tightening M16x320 screws (pos. 1) in two
phases observing the sequence indicated in figure: (A-B-C-D-
E-F-G-H)
Phase 1 = 200 Nm
Phase 2 = 280 Nm
OPERATION 2: Tightening M10x140 screws (pos. 26) in four
phases observing the sequence indicated in figure: (1-2-3-4-
5-6-7-8)
Fig. 130
Phase 1 = 40 Nm
Phase 2 = 65 Nm
Phase 3 = 83 Nm
Phase 4 = 83 Nm
55
Tightening Torque
Position Nm
79 45
81 40
41 200
71 45
66 45
71 45
50 10
79 45
43 65*
37 10
15 40
29 45
22 40**
1 280***
26 83****
Fig. 131