Workshop manual
TH1 - D504
D 504 NA
D 504 T
D 504 TI
This manual is written for an experienced technician.
Essential tools required in performing certain service
work are identified in this manual and are
recommended for use.
This manual (TH1_D504) covers only the base engine.
It is one of three volumes on LIEBHERR D504
diesel engines. The following two companion manuals
cover fuel system repair, operation and diagnostics:
TH2_D504 Mechanical Fuel System
TH3_D504 Electronic Fuel System with
Stanadyne DE10 Pump
Other manuals will be added in the future to provide
additional information on electronic fuel systems as
needed.

Contents
SECTION 01General Information
Group 000Safety
Group 001Engine Identification
Group 002Fuels, Lubricants and Coolants
SECTION 02Repair and Adjustments
Group 010Engine Rebuild
Group 020Cylinder Head and Valves (Two-Valve
Head Engines)
Group 030Cylinder Block, Liners, Pistons and
Rods
Group 040Crankshaft, Main Bearings and
Flywheel
Group 050Camshaft, Balancer Shafts and Timing
Gear Train
Group 060Lubrication System
Group 070Cooling System
Group 080Air Intake and Exhaust System
Group 090Fuel System
Group 100Starting and Charging Systems
SECTION 03Theory of Operation
Group 120Base Engine Operation
SECTION 04Diagnostics
Group 150Observable Diagnostics and Tests
SECTION 05Tools and Other Materials
Group 170Repair Tools and Other Materials
Group 180Diagnostic Service Tools
Group 190Dealer Fabricated Service Tools
SECTION 06Specifications
Group 200Repair and General Specifications
Group 210Diagnostic Specifications