CUMMINS QSL9 - High Fuel Pressure Warning; Fuel Flammability Warning

Normalengineoperationcreateshighlypressurized
fuelinthefuellinewhichwillremaininthefuelline
afterengineshutdown.Neveropenthefuelsystem
whentheengineisoperating.Beforeservicingthe
fuelsystem,alwaysloosenthepump-to-railfuelline
attherailtoventthepressure.Keephandsclearof
thelinewhenloosening.Highpressurefuelspray
canpenetratetheskin,resultinginseriouspersonal
injuryordeath.
• Before servicing the fuel system, loosen the pump-
to-rail line at the rail to vent the pressure.
• Keep hands clear of the line when loosening.
• Tighten the pump-to-rail line nut.
TorqueValue: 65 n•m [ 48 ft-lb ]
Note: A machined slot in this fitting directs the
fuel spray toward the cylinder block.
WARNING
Batteriescanemitexplosivegases.Toreducethe
possibilityofpersonalinjury,alwaysventilatethe
compartmentbeforeservicingthebatteries.To
reducethepossibilityofarcing,removethe
negative(-)batterycablefirstandattachthe
negative(-)batterycablelast.
WARNING
Fuelisflammable.Keepallcigarettes,flames,pilot
lights,arcingequipment,andswitchesoutofthe
workareaandareassharingventilationtoreduce
thepossibilityofseverepersonalinjuryordeath
whenworkingonthefuelsystem.
CAUTION
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QuickServe Online | (4022256) QSL9 CM2250 Service Manual
10/3/2018
https://quickserve.cummins.com/qs3/portal/service/manual/en/4022256/