Interpump Group SS70 Manual De Reparación página 22

3 SCREW TIGHTENING CALIBRATION
Description
Covers fixing screw
Piston fixing screw
Con-rod cap fix. screw
Valve cover fix. screw - SS - SW
Valve cover fix. screw - SN
Head fixing screw
Type "A" flange fix. screw
Screw fix. Coupl.SAE C
Screw fix. PTO 2nd Flange
* The con-rod cap fixing screws must be tightened
respecting the phases indicated on page 16.
** The head fixing screws must be tightened with a
torque wrench, lubricating the underhead, respecting
the order in Fig. 24.
*** The valve cover fixing screws must be tightened
with a torque wrench, lubricating the underhead,
respecting the order in Fig. 24.
**** The PTO 2nd flange fixing screw must be tightened
with a torque wrench, using Loctite 243 Blue.
4 REPLACING THE CON-ROD FOOT BUSH
During maintenance, if it becomes necessary to replace the con-rod foot bush, proceed as follows:
When removing the worn bushing, take great care not to damage or scratch the seat on the con- rod.
Perform cold press fitting of the new bush. During this operation, ensure that:
• the lubrication hole coincides with the corresponding hole on the con-rod;
• the cutting junction is directed as shown in Fig. 25.
Then perform mechanical processing. The dimensions and tolerances shown in Fig. 25 MUST be respected.
Cutting junction
direction
Exploded Tightening
view torque Nm
position
9 10
28 20
16 30*
36 35**
36 80**
35 35***
55 22
57 40
65 145****
22
SECT A-A
Fig. 24
Fig. 25