Screw Tightening Calibration - Pratissoli LK Serie Manuel De Réparation

The machined head must be assembled by driving in the
bushes (pos. ) together with the anti-extrusion rings
(pos. ) and O-rings (pos. ) as shown in Fig. 167 for LK36-40-
45 and in Fig. 168 for LK50-55-60:
no. 1 - Bush LK36-40-45 - code 78216756 - qty 3
3

SCREW TIGHTENING CALIBRATION

Screw tightening must only be performed with a torque wrench.
Description
Casing cover M8x20 screw
G1/2x13 casing plug
M8x30 screw, PTO bearing cover
M8x20 screw, shaft end cover
M10x30 screw, bearing support cover
Upper and lower cover M6x14 screw
M8x20 screw, bearing cover
M12x1.25x87 screw, connecting rod tightening
Piston guide M6x20 screw
M12x25 screw, bush locking flange
M10x160 screw, piston attachment
M16x55 screw, valve cover
G1/4"x13 head plug
M16x150 screw, head
Valve opening device
* Achieve coupling torque tightening screws at the same time.
** Tighten the screws starting crosswise from the 4 inner screws (see Fig. 135), to then continue with the 4 outer screws,
always tightening crosswise.
no. 2 - Anti-extruder ring - code 90526880 - qty 6
no. 3 - O-ring - code 90410200 - qty 6
no. 1 - Bush LK50-55-60 - code 78216656 - qty 3
Fig. 167
no. 2 - Anti-extruder ring - code 90528500 - qty 6
no. 3 - O-ring - code 90412900 - qty 6
Exploded Drawing
67
Tightening Torque
Position Nm
54 25
78 40
95 25
54 25
69 45
82 10
54 25
52 75*
49 10
63 68.5
27 40
26 333
13 40
25 333**
2 40
Fig. 168