Perkins — Flywheel - Remove and Install
Repair & overhaul
From a Perkins service manual covering: 402D-05, 403D-07, 403D-11, 403D-15, 404D-22, 404D-22T, KENR6226-10. Check it applies to your exact model before use.
Applies to: Perkins 402D-05, Perkins 403D-07, Perkins 403D-11, Perkins 403D-15, Perkins 404D-22, Perkins 404D-22T
Before you start
- Always wear protective gloves when handling heated parts.
- Keep all parts clean from contaminants.
Procedure
- Remove electric starting motor.
- Install lifting device to flywheel.
- Remove two bolts and install guide studs.
- Remove remaining bolts and flywheel.
- Inspect ring gear and flywheel.
- If ring gear removed, heat new ring gear to 150°C and install.
- Clean flywheel housing.
- Install guide studs in crankshaft.
- Position flywheel on guide studs.
- Install bolts and tighten to specified torque.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Flywheel bolts: 74 N·m or 75 N·m
- Ring gear heating: 150°C maximum
Full service-parts list: Perkins 402D-05 →, Perkins 403D-07 →, Perkins 403D-11 →, Perkins 403D-15 →, Perkins 404D-22 →, Perkins 404D-22T →
Source: Perkins 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.