2.3 Do a check for leaks.
NOTE: If oil flows into the groove (011), the PCV has a leak, or the O-ring in
the test block (009) has damage.
2.4 Continue to adjust the SAV (004) and do checks for leaks at the same time.
2.5 Adjust the SAV (004) so that the PCV opens at 1050 bar.
NOTE: Oil flows out through the flexible tube.
2.6 On the SAV (004), tighten the locknut.
2.7 On the HP oil pump (007), open the relief valve (006) to decrease the pressure
to zero.
3 Do a check of the set-point as follows:
3.1 On the HP oil pump (007), close the relief valve (006).
3.2 Operate the HP oil pump (007).
3.3 Make sure that the PCV opens at 1050 ±30 bar.
3.4 If the PCV opens at less than 1020 bar or more than 1080 bar, do the procedure
in step Step 2 again.
If the PCV does not open at less than 1300 bar or opens at less than 1020 bar
(when the SAV (004) is fully closed), the PCV has a malfunction. You must find
and repair the malfunction before you install the PCV.
3.5 On the HP oil pump (007), open the relief valve (006) to decrease the pressure
to zero.
3.6 Disconnect the flexible tube from the PCV outlet (002).
3.7 Disconnect the HP hose (003) from the test block (009).
3.8 Remove the four screws (001) from the PCV.
3.9 Remove the PCV from the bench vice.
CLOSE UP
• None
X72DF
AA00-5562-00AAA-360A-A
Maintenance Manual Fuel rail - do a check of the pressure control valve
Winterthur Gas & Diesel Ltd.
- 588 - Issue 002 2020-10
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