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6
Prepare Parts for Assembly
Prepare Parts for Assembly
Hazard Alert Messages
Read and observe all hazard alert messages in this publication.
DANGER
Solvent cleaners can be flammable and poisonous, and cause
serious personal injury or death. Examples of solvent cleaners
are carbon tetrachloride, and emulsion-type and petroleum-base
cleaners. Read the manufacturer's instructions before using a
solvent cleaner, then carefully follow the instructions. Also follow
the procedures below.
• Wear eye protection.
• Wear clothing that protects the skin.
• Work in a well-ventilated area.
• NEVER use gasoline or solvents containing gasoline. Gasoline
can explode.
• Hot solution tanks or alkaline solutions must be used correctly.
Read the manufacturer's instructions before using hot
solution tanks and alkaline solutions. Then carefully follow the
instructions.
WARNING
The use of compressed air for cleaning and drying parts is
unlawful in some areas of Canada and should not be used where
prohibited. Personal injury and damage to parts can result.
WARNING
To prevent eye injury, always wear eye protection when
performing vehicle maintenance or service.
Clean Parts
Ground and Polished Parts
CAUTION
NEVER use hot solution tanks or water and alkaline solutions to
clean ground or polished parts. Damage to parts can result.
• NEVER clean ground or polished parts in a hot solution tank,
water, steam, or alkaline solution to avoid damaging the
surfaces.
• Use a cleaning solvent to clean ground or polished parts or
surfaces. NEVER USE GASOLINE.
• Use a knife, if required, to remove gasket material from parts. Be
careful not to damage the ground or polished surfaces.
MM-0170 / Revised 03-23
Page 28
Clean Rough Parts
• Clean rough parts with the same method as cleaning ground and
polished parts.
• Use a cleaning solvent or a hot solution tank with a weak alkaline
solution to clean parts with a rough finish.
• Leave the parts in the hot solution tank until they are completely
cleaned and heated. When the parts are clean, remove them
from the tank.
• Wash the parts with water until the alkaline solution is
completely removed.
Clean Axle Assemblies
Close or cover all openings, including breather, oil drain,
and speed sensor, before steam cleaning. Steam can cause
component damage.
• Before steam cleaning the axle, close or put a cover over all
openings in the case.
• Steam clean the outside of the axle assembly to remove heavy
amounts of dirt.
• Remove any remaining silicone sealant from the axle housing
using a suitable scraper or wire wheel.
Dry Parts
Dry bearings with clean paper or rags. NEVER use compressed
air, which can cause abrasive particles to contaminate the
bearings. Damage to the components and reduced lining life can
result. Using compressed air can also cause the rollers to be
forced out of their cage and propelled into the air, causing injury.
• Immediately after cleaning, use clean paper, cloth rags, or
compressed air to dry the parts. Do not use compressed air to
dry bearings.
Prevent Corrosion
NOTE: Parts must be clean and dry before lubricating them.
• Apply a light oil to cleaned and dried parts that are not damaged
and are to be immediately assembled. Do not apply oil to the
brake linings or the brake drums.
• If the parts are being stored after cleaning, apply a corrosion-
preventive material to all machined surfaces. Store the parts in a
special paper or other material that prevents corrosion.
Copyright Meritor, Inc., 2023
CAUTION
WARNING
Printed in USA
(16579)
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