Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-73
SY115C9/135C/155H Crawler Hydraulic Excavator
Fig. 5-73
Fig. 5-74
4
CZ215-1104017
Start priming pump
4
CZ215-1104018
Start priming pump
Fig. 5-72
3
CZ215-1104016
5. Tighten filter cartridge until the seal con-
tacts
fi
lter seat. Further turn it by 3/4 turn.
If filter cartridge was over-tightened, the
seal might be damaged and fuel leak could
result. If filter cartridge was not tightened
enough, fuel will leak through the gap
of seal. Always tighten it to the specified
torque.
6. Remove air after replacing the
fi
lter.
Air-purging steps:
7. Refill fuel tank until the float reaches the
maximum level.
8. Loosen plug (3) of fuel
fi
lter.
9. Turn counterclockwise the handle (4) of
start priming pump.
10. Push and pull the handle (4) to pump fuel.
11. Tighten plug (3) when fuel coming out of
plug of fuel
fi
lter contains no foam.
Tightening torque: 9.8
±
2.0 N·m {1.0
±
0.2
kgf·m}
12. Operate the priming pump 5-6 times and
turn handle (4) clockwise to tighten it.
13. Completely remove overflowed fuel after
purging the air. Start the engine and run it
at low idle for 10 minutes.
Check filter cartridge for fuel leak. Check
the tightening of
fi
lter cartridge if fuel leak
is found.
If fuel leak still exists, repeat step 1 through
step 3 to remove the cartridge. If seal dam-
age or impurities are found, repeat step 4
through step 13 to install a new cartridge.