TM 5-2420-230-24-2
Complete Engine - General Information
B3.9 and B5.9 Series Engines
Page 0-2
Section 0 - Complete Engine - Group 00
Complete Engine - General Informa-
tion
The procedures required to replace an engine will vary with
different engine models, type of equipment, optional equip-
ment, and shop facilities. Use the following procedures as
a guide.
NOTE: All replacement steps will not apply to all equip-
ment. Complete only the steps that apply to the equipment
involved. Use the equipment manufacturer's recommen-
dations and precautions for removal of chassis parts to gain
access to the engine.
Engine Removal (000-001)
Place a tag on all hoses, lines, linkage, and electrical con-
nections as they are removed to identify their locations.
WARNING
Batteries can emit explosive gases. To avoid personal
injury, always ventilate the compartment before servic-
ing the batteries. To avoid arcing, remove the negative
(-) battery cable first, and attach the negative (-) battery
cable last.
WARNING
Coolant is toxic. If not reused, dispose of in accordance
with local environmental regulations.
Disconnect the battery cables.
Drain the engine coolant. Refer to Procedure 008-018.
WARNING
Some state and federal agencies have determined that
used engine oil can be carcinogenic and cause repro-
ductive toxicity. Avoid inhalation of vapors, ingestion,
or prolonged contact with used engine oil.
Drain the lubricating oil. Refer to Procedure 007-025.
Disconnect the starter cable, engine ground straps, cab- or
chassis-to-engine hoses, tubing, electrical wires, and hy-
draulic lines.
L-666
