Service Repair Manual
420D BACKHOE LOADER
Product: BACKHOE LOADER
Model: 420D BACKHOE LOADER FDP
Configuration: 420D Backhoe Loader FDP07199-18399 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
3054C Engines for Caterpillar Built Machines
Media Number -SENR5069-18
Publication Date -01/05/2015
Date Updated -19/09/2018
Idler Gear - Remove and Install - Delphi DP210 Fuel
SMCS - 1206
Tool Part Number
Crankshaft Turning Tool
Timing Pin (Camshaft)
Timing Pin (Crankshaft)
a. Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley -
Remove and Install".
b. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
420D Backhoe Loader FDP07199-18399 (MACHINE) POWERED BY 3054 Engine(...
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Dispose of all fluids according to local regulations and mandates.
1. Use Tooling (A) to ensure that the No. 1 cylinder is at the top center compression stroke.
Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".
Note: Install Tooling (B) through the camshaft gear. Install Tooling (C) into the crankshaft
The valve timing and the fue