Checking The Hoses - Detroit Diesel DD15 EuroIV Operator's Manual

1. Place the transmission in neutral, and set the parking brake.
2. Clean outside of the coolant filter housing.
3. Using a 36-mm socket, unscrew cap and filter and allow the coolant to drain
into the housing. After draining, remove the assembly from the housing.
4. Remove the filter from the plastic cap by placing the filter on a solid surface
and apply pressure on the plastic cap at an angle.
5. Remove coolant filter O-ring and discard it. Lightly lubricate a new O-ring
with clean engine oil and install it on the filter cap.
6. Check filter housing for any debris and remove if necessary.
7. Insert a new filter element into the cap.
8. Insert element and cap assembly into the housing. Torque the cap to 55-60
N·m (41-44 lb·ft).
9. Check coolant level and adjust if necessary.
WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the
engine in a well-ventilated area. Engine exhaust is toxic.
WARNING: PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the
vehicle is parked on a level surface, parking brake is set, and the
wheels are blocked.
10. Start engine with the accelerator pedal in the idle position. Monitor all
gauges or indicator lamps.
11. Check the filter housings for signs of leakage.

Checking the Hoses

Check the hoses as follows:
1. Inspect the cooling system hoses and replace any hose that shows obvious
signs of damage or feels abnormally soft or hard.
2. Replace damaged clamps.
3. Correct all external leaks as soon as detected.
NOTE: If Detroit Genuine antifreeze/coolant (or equivalent fully formulated,
pre-charged antifreeze is used, a pre-charged element is not required.
4. Check coolant inhibitor levels at the intervals listed in this manual.
Refer to section "EPA07 DD Series Preventive Maintenance Tables"
Refer to section "EPA10/GHG14 DD Series Preventive Maintenance Tables"
All information subject to change without notice.
DDC-SVC-MAN-0175 Copyright © 2014 DETROIT DIESEL CORPORATION
DD Platform EuroIV Operators Manual
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