Operation Manual

Job Card No.:
Engine:
Filing No.:
Sealing Oil Two-way Valve
Servicing
0178-16-10 1154
© 0885
08.20.01
S/BV M 628
Servicing
Remove two-way valve of injection pump plunger
hydraulic seal (Section 5.1.4), dismantle and clean.
Following commissioning of a new engine,
valve element 3 may bind due to dirt coming
from the sealing oil high-level tank. In this case
clean not only valve, but also tank and line to
valve.
Job:
Stop engine. Isolate line from oil high-level tank to
two-way valve or, if provided, switch off separate oil
pump. Remove valve from oil line. Unscrew connec-
tor (1) and plug (7) from valve body (2). Press out
valve seats (5) to the right and left respectively. Take
out valve element (3).
Clean all parts in diesel fuel and check for wear
including scoring. Renew O-seals (4) and (8).
In the case of a slight seizure of element (3) in body
(2), remedy this by extra-fine lapping.
Reinstall element (3) and both valve seats (5) with
new O-seals (4) and 8 in body (2). Screw in connector
(1) and plug (7) with new washers (6).
Check free movement of element (3) with an arbor
inserted through connections ”A” and ”C”.
Reinstall two-way valve in oil line. Open shut-off
valve. Check that oil line connections are free from
leaks.
Reconditioning
If element 3 in body 2 has excessive clearance as
suggested for instance by a rise of the amount of oil
in the high-level tank, replace two-way valve.
A from oil tank
B to oil passage in injection pump
C from oil feed pump in injection pump
Job Card:
- 07.03.01
Tools:
- Standard tools,
- Detergent
© 51 341 0