Service Manual

6. Service 10-2019
122 A062J683 (Issue 1)Copyright © 2019 Cummins Inc.
k. Remove the exhaust manifold.
l. Remove the isolator mount nuts and isolators.
m. Remove the engine.
ALTERNATOR AND ENGINE INSTALLATION
1. If a new engine is being installed, install the dipstick shipped with the engine.
Apply a bead of Loctite 518 (or equivalent high temperature thread sealant) on
the underside of the dipstick mounting flange around the perimeter of the tube.
Tighten mounting bolts to 9.8–11.9 Nm (7.2–8.8 ft-lb).
NOTICE
This step can be done after the engine is mounted in place.
2. Position the engine.
3. Install the engine isolator washers and nuts. Verify that the isolator studs are in
approximately the same location in the mounting bracket slots. Torque to 24–29
Nm (17.7–24.1 ft-lb).
4. Install the alternator rotor:
NOTICE
The face of the stator laminations on both ends of the stator should be
flat and clear of any foreign objects for approximately 12 mm (0.47 in)
from the outer edges.
The mating surfaces on the engine and end bell should be clean.
When installing the stator to the engine, the lamination should make flat
contact with the recessed surface on the engine adapter. Tabs on the
laminations must fall within the relief cuts in the engine adapter.
Stator leads must be positioned directly downward for proper
installation. The stator laminations at the end bell end must be flat
against the end bell surface.
Positioning of notches on the end bell must fall within the lamination
relief feature. The opening of the end bell must be at the bottom.
NOTICE
Verify that the o-ring in the end bell is lubricated. If not, use heavy duty
15W40 engine oil for lubrication.
a. For a complete rotor and stator assembly (that is, a complete alternator),
both installed at the same time:
i. Remove any shipping brackets and position the alternator for
installation. Do not allow contact between the rotor and stator
windings.
ii. Slide the rotor onto the engine output shaft.