These general suggestions should be helpful in
apply when access covers or inspection plates are
following the instructions in this manual. In analyzing
a system malfunction, use a systematic procedure to
locate and correct the problem.
Clean and inspect all parts. Be sure all passages
and holes are open. Cover all parts to keep them
Determine the problem.
clean. Be sure parts are clean when they are
installed. Leave new parts in their containers until
List possible causes.
ready for assembly.
Clean the rust preventive compound from all
machined surfaces of new parts before installing
Conduct checks in a logical order to determine
REMOVAL AND INSTALLATION.
Consider the remaining service life of
components against the cost of parts and labor
When performing maintenance, do not attempt to
necessary to replace them.
manually lift heavy parts when hoisting equipment
should be used. Never locate or leave heavy parts in
Make the necessary repair.
an unstable position. When raising a portion of a
crane or a complete crane, ensure the crane is
Recheck to ensure that nothing has been
blocked securely and the weight is supported by
blocks rather than by lifting equipment.
Functionally test the failed part in its system.
When using hoisting equipment, follow the hoist
manufacturer's recommendations and use lifting
devices that will allow you to achieve the proper
balance of the assemblies being lifted and to ensure
Your safety and that of others is always
the number one consideration when
Unless otherwise specified, all removals requiring
working around machines. Safety is a
hoisting equipment should be accomplished using an
matter of thoroughly understanding the job
adjustable lifting attachment. All supporting members
to be done and the application of good
(chains and cables) should be parallel to each other
common sense. It is not just a matter of
and as near perpendicular as possible to the top of
do's and don'ts. Stay clear of all moving
the object being lifted.
The capacity of an eyebolt diminishes as
An important item in preserving the long life of the
the angle between the object becomes
machine is keeping dirt out of working parts.
less than 90 degrees.
Enclosed compartments, seals, and filters have been
brackets should never be bent and should
provided to keep the supply of air, fuel, and lubricants
only have stress in tension.
clean. It is important that these enclosures be
Some removals require the use of lifting fixtures to
obtain proper balance.
The weights of some
Whenever hydraulic, fuel, lubricating oil lines, or air
components are given in their respective sections of
lines are disconnected, clean the adjacent area as
well as the point of disconnect. As soon as the
disconnection is made, cap, plug or tape each line or
opening to prevent entry of foreign material. The
same recommendations for cleaning and covering