TRUCK SERVICE MANUAL
Unit removal is a simple operation, time and labor will be
Engine Disassembly Group 0
saved if the necessary steps are followed. A few
precautions are included that will help prevent accidents
and/or damage to the parts.
The following service tools or tools of equal quality are
considered necessary to disassemble the 855 C.I.D.
identify mounting components, as removed, for mounting
(Cubic Inch Displacement) Series Cummins Diesel
location. Place parts and units (except electrical parts)
on a rack or cart for cleaning. Discard gaskets and
Service Tools (Or Equivalent) Required
Engine Serial Number Plate
Engine serial number plate is located on the gear case
mounting flange. Always refer to serial number and
model designation when ordering parts or assemblies.
Engine Rebuild Stand
Engine Stand Adapter
Non-certified engine serial dataplate, applies to current
Desirable (Or Equivalent) Service Tools
non-certified engines. Certified engine serial dataplate
applies to engines conforming to the Federal (U.S.A )
Clean Air Act. Engine serial dataplate may not be
changed without consent and approval of Cummins
Fan Hub Wrench
Engine Company, Inc.
Crankshaft Flange Puller
Fan Hub Wrench
DRAIN WATER AND OIL
Injector Removal Tool
Drain complete system of lubricating oil, fuel and water.
Main Bearing Cap Puller
Bleed compressed air system, if used.
Liner Puller Bridge
Liner Puller Assembly
Note: Engines used as Duel Diesels will be equipped
Standard Tools - Obtain Locally
with two sets of fuel lines and additional fuel control
valves so four cylinders can be used for compressor
Hoist (Power or Chain)
pumping. Fig. 0-2
Glass Bead Cleaner
UNIT REMOVAL AND CLEANING
Before disassembly of an engine or any unit used on the
engine, inspection of the over-all condition should be
made. This will furnish a great deal of information
concerning necessary repair.
Inspection of each unit and tagging of electrical wires
and components, bearing shell positions and other parts
identification will help insure correct assembly.
Remove units and parts from cylinder block in a
convenient order by removing mounting hardware, such
as clamps, brackets, capscrews, washers, drive belts,
etc. Mark or
Fig. 0-2, (N11830). Typical fuel line and valve plumbing -