Detroit Diesel EPA07, Workshop Manual

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EPA07/10 DD PLATFORM WORKSHOP MANUAL - ENGINE
12.4 INSTALLATION OF DD15 AXIAL POWER TURBINE
Install as follows:
1. Shut off the engine, apply the parking brake, chock the wheels, and perform any other
applicable safety steps.
2. If removed, install the gear box to cylinder block with four bolts. Torque bolts to 55–60
N·m (41–45 lb·ft).
3. Install axial power turbine gasket, graphite seal, and O-ring. If removed, install the oil
passage tube. DO NOT press into Gear Box, then install into APT.
4. Lubricate collar and O-ring with clean engine oil (the guide tube must be pressed into the
turbine housing with the taper facing toward the gear box).
5. Install axial power turbine to gear box and bracket (the APT must be installed as straight
to the gearbox as possible; uneven installation could cause an oil leak).
NOTICE:
When installing axial power turbine to gear box, ensure gears are
aligned by viewing through exhaust port and rotating impeller.
Damage to gear box and axial power turbine will occur if not
installed correctly.
6. Install the front bolt through the APT into the gear box, and hand-tighten the bolt.
7. Install two bolts through the bracket into the axial power turbine; then install two bolts
through the bracket into the cylinder block. Install the remaining three bolts into axial
power turbine; hand-tighten.
8. Torque the bolts to 55-60 N·m (41-45 lb·ft).
9. Install air line to axial power turbine from air seal pressure regulator valve or from the
turbocharger compressor housing. Torque the banjo bolt to 10 N·m (7 lb·ft).
10. Install the oil feed line from the block to the gear box (if removed) torque to 20 N·m
(15 lb·ft).
11. Install the turbocharger and interstage duct. Refer to section 11.4.
12. Install the axial power turbine heat shields.
13. Fill the engine with coolant.
All information subject to change without notice.
DDC-SVC-MAN-0081 2010 Copyright © 2010 DETROIT DIESEL CORPORATION
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