Explosion relief valve
Inspection / Checking
A5.05. 03.01.01.02
1500
M20
en / 31.05.2010 IB025068 1/2
03
See also: 02.01.01.nn
Spare parts list: B1.05.03.2.1633
Time requirement: 1 Pers./ 1,00 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Inspection:
freedom of movement of the explosion relief valve.
Sequence of operations:
1. Check the relief valve manually for freedom from inside of
the crankcase door (1). Thereto remove the crankcase door
or the explosion relief valve.
2. Disassembly
2.1 Remove hexagon screws (9) of the explosion relief valve and
the crankcase door (1).
2.2 Remove the explosion relief valve completely from
crankcase door (1).
2.3 Screw off the nuts (2) with the spring ring (3) from the
countersunk screws (4).
2.4 Lift off the deflection plate (5), the pressure spring (6) and the
valve plate (7).
2.5 Remove the two countersunk screws (4).
2.6 Remove the six spacer tubes (8) with retaining washers.
2.7 Take the rubber ring (10) out of the seat ring.
2.8 Clean all parts with gas oil.
2.9 Check all parts and renew if necessary.
NOTE
Disassembly of the explosion relief valve is only required when the prescribed spring
tension can not be reached or abnormal fouling by oil or a leakage can be recognized.
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