Detroit Diesel 4000 Series, Service Manual, Page: 1406 / 2706

SERIES 4000 12/16V SERVICE MANUAL
C 185.10.08 M – INSPECTION AND REPAIR
Perform the following steps for the inspection and repair of the oil supply lines:
NOTE:
Ensure that all oil supply line parts are clean prior to inspection and repair.
To avoid personal injury when blow drying, wear adequate
eye protection (safety glasses or face plate) and do not
exceed 276 kPa (40 lb/in.
2
) air pressure.
1. Clean oil supply lines with diesel fuel and blow dry with compressed air.
2. Visually inspect oil supply lines for damage.
[a] If oil lines are damaged, replace as necessary.
[b] If oil lines are not damaged, continue inspection.
To avoid an eye injury when using compressed air, wear
adequate eye protection (safety glasses or faceplate) and
do not exceed 276 kPa (40 lb/in.
2
) air pressure.
3. Pressure test oil supply lines at 0.5 bar (7 lb/in.
2
) with compressed air in a water bath
to check for leaks.
[a] If leaks are found, replace oil line(s).
[b] If leaks are not found, continue inspection.
4. Visually inspect new drains for plugs or obstructions.
[a] If plugs or obstructions are present, clean as required.
[b] If no plugs or obstructions are present, continue inspection.
All information subject to change without notice.
C -1260
Copyright © DETROIT DIESEL CORPORATION