Maintenance5562−1/A1
Winterthur Gas & Diesel Ltd.
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4.2 Adjustment Procedure
CAUTION
Damage Hazard. Do not connect the solenoid valve. Damage to
the PCV can occur.
1) Operate the HP oil pump (94931, Fig. 2).
2) Adjust the SAV (7) to get a value of 100 bar.
3) Do a check for leaks.
Note: If oil flows into the groove (6) the PCV has a leak, or the O-ring in the tool
(94556) has damage.
4) Continue to adjust the SAV (7) and do checks for leaks at the same time.
5) Adjust the SAV (7) so that the PCV opens at 1050 bar.
6) On the SAV (7), tighten the locknut.
7) On the HP oil pump (94931), open the relief valve (4) to decrease the pressure to
zero.
4.3 Setpoint Check
1) On the HP oil pump (94931), close the relief valve (4).
2) Operate the HP oil pump (94931).
3) Make sure that the PCV opens at 1050 ± 30 bar.
4) If the PCV opens at less than 1020 bar or more than 1080 bar, do the procedure
in paragraph 4.2 again.
Note: If the PCV does not open at less than 1300 bar or opens at less than 1020
bar (when the SAV (7) is fully closed), the PCV has a malfunction. You
must find and repair the malfunction before you install the PCV.
5) On the HP oil pump (94931), open the relief valve (4) to decrease the pressure to
zero.
6) Disconnect the flexible tube from the PCV outlet (2).
7) Disconnect the HP hose (94935) from the tool (94556).
8) Remove the four screws (1) from the PCV.
9) Remove the PCV from the bench vice.
2015
Fuel Pressure Control Valve: Removal, Check, Installation
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