John Deere 8400 Forage Harvester Maintenance Guide shows service schedule parts, maintenance intervals & common John Deere parts.

Service Schedule Parts

1 - Hydraulic Reservoir Oil Filter AXE27447 Every Replace every 1,000 hours or two years whichever is first and as indicated by DTC
1 - Hydraulic Oil Filter AXE27449 Every Replace after first 100 hours then every 1,000 hours and as indicated by DTC
1 - DEF Tank Header Suction Filter DZ103739 Every Replace as indicated by DTC
1 - DEF Tank Vent Filter H216169 Every Replcae after first year then every 4,500 hours or three years whichever is first
1 - Primary Air Cleaner HXE60966 Every Clean as required (up to six times) Replace every 1,500 hours
1 - Secondary Air Cleaner HXE60967 Every Replace with each primary air cleaner change
1 - Recirc Air Filter L155288 Every Clean or replace as required
1 - Fresh Air Filter RE284091 Every Clean or replace as required
1 - Engine Fuel Filter RE533910 Every Replace every 500 hours and as indicated by DTC
1 - Engine Fuel Filter RE539465 Every Replace every 500 hours and as indicated by DTC
1 - DEF Dosing Unit Filter RE554498 Every Replace after first year then every 4,500 hours or three years whichever is first
1 - Engine Oil FilterRE572785 Every Replace after initial 100 hours then every 250 hours (Plus-50 II will extend to 500 hours)