MTU 12 V 2000 M72 Operating Instructions Manual page 23

HP line between distributor and HP accumulator
1 Jacket pipe
2 O-ring
3 O-ring
4 Thrust ring
Leak fuel caused by leakages from the sealing cones or the HP lines is returned to the HP pump, from
where it is routed at atmospheric pressure into a level-monitored leak fuel tank.
5 Thrust screw
6 Thrust ring
7 O-ring
8 HP line
M015650/03E 2011-10 | General Information | 23
9 Pressure pipe
10 O-ring