Tesla Model 3: Inverter - Rear Drive Unit - Install
Install
- Secure the ESD strap to the inverter housing.
- Carefully peel the gap pad from the inverter
PCB.
- Use an IPA wipe to remove any residue and
prepare the gap pad location on the inverter PCB.
- Peel the backing off of the new gap pad,
position the pad into place, and press it onto the
inverter PCB.
- Inspect the condition of the gap pad on the
inverter PCB.
- Fully covers the discharge resistor array
and that no resistors are visible.
- Clean and free of debris.
- Evenly adhered to the inverter PCB.
- Install a new inverter gasket.
- Use an IPA wipe to clean the HV mating
surfaces of the motor and inverter 3-phase terminals.
- Carefully align the inverter to the 2 pins in
the rear drive unit, and then install the inverter to
the rear drive unit. Make sure that the 3-phase
terminals align during installation.
Caution:
Avoid damage to the printed circuit board of the
inverter.
- Hand-tighten the new bolts (x12) that attach
the inverter to the gearbox assembly.
- Torque the bolts in the sequence shown.
Torque 5 Nm +20 deg
- Install the LH rear drive unit mount to the
rear drive unit, and then hand-tighten the bolts (x3)
that attach the mount to the rear drive unit.
- Tighten the bolts in a two-step,
counter-clockwise pattern, starting with the upper-right
bolt.
Torque 35 Nm +55 deg
- Install the new bolts (x3) that attach the 3
phase cable to the inverter assembly.
- Tighten the bolts to this specification.
Torque 11.5 Nm
- Loosen the bolts 180 degrees.
- Tighten the bolts to this specification.
Torque 5 Nm +40 deg
- Apply a film of ATF-9 fluid to the walls of
the gear case bores, and then install the new 3-phase
access cover.
- Install the bolts (x2) that attach the 3-phase
access cover to the rear drive unit assembly.
Torque 7.5 Nm
- Perform an inverter air leak test. See
Inverter Air Leak Test.
- Apply a new 3-phase access label.
- Remove the ESD wrist strap.
- Install the rear drive unit. See Drive Unit -
Rear (Remove and Replace).
READ NEXT:
SPECIAL TOOLS
Skt, 3/8in Dr, 10EP Torx Plus External
(1130479-00-A)
Lever
Install
Secure the ESD strap to the replacement inverter
housing.
SEE MORE:
DRAFT
Warning: This procedure was derived from pre-production
computer models, and might not reflect the real-world situation. Warnings and
cautions might be missing. Follow safety requirements and use extreme caution
when working on or near high voltage systems and components.
Remove
R
Install
Use an IPA wipe to clean the area around the openings where the flood
ports were removed.
Install a 2nd generation flood port into the opening at the LH underside
of the HV battery penthouse.
Note: Press up firmly to fully seat the flood port and fasten the
clips (x8) internally