Detroit Diesel — Installation
Repair & overhaul · Aftertreatment Device (ATD)
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- To avoid injury from flying parts when working with components under spring tension, wear adequate eye protection (face shield or safety goggles).
Procedure
- If necessary, remove body panel(s) or other obstruction and jack up vehicle.
- Secure ATD to lifting device with security chain.
- Raise ATD into position under vehicle and align between turbocharger exhaust and exhaust pipe assembly. Use rope sling to support exhaust pipe assembly.
- Position support straps around ATD. Tighten support straps to snug fit. Remove security chain from ATD.
- Install front marmon clamp at connection between ATD inlet and turbocharger exhaust pipe. Tighten to snug fit.
- Install rear marmon clamp at connection between ATD outlet and exhaust pipe. Tighten to snug fit.
- Torque marmon clamps to 6.8 Nm (60 in lb) and support straps to 41 Nm (30 lb ft).
- Plug in sensor harness at 10-pin connector at vehicle chassis.
- Lower lifting device and remove from under vehicle.
- If necessary, lower vehicle and replace body panel(s) or other removed component.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Marmon clamps: 6.8 Nm (60 in lb)
- Support straps: 41 Nm (30 lb ft)
Source: Detroit Diesel service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.