Disassembly and Assembly
To avoid back injury, use a hoist when lifting
components which weigh 50 lb. (23 kg) or more. Make
sure all chains, hooks, slings, etc., are In good condition
and are in the correct capacity. Be sure hooks are
positioned correctly. Lifting eyes are not to be side
loaded during a lifting operation.
10. To avoid burns, be alert for hot parts on machines
which have Just been stopped and hot fluids In lines,
tubes and compartments.
11. Be careful when removing cover plates. Gradually
back off the last two bolts or nuts located at opposite
ends of the cover or device and pry cover loose to relieve
any spring or other pressure, before removing them
12. Be careful when removing filler caps, breathers and
plugs on the machines. Hold a rag over the cap or plug
to prevent being sprayed or splashed by liquids under
pressure. The danger is even greater if the machine has
just been stopped because fluids can be hot.
13. Use only the recommended tools which are listed for
a specific procedure. Be sure the tools are In good
condition and that you fully understand how to use them
before performing any service work. Failure to use the
listed tools can cause damage to components or serious
personal injury or death.
14. Reinstall all fasteners with same part number. Do
not use a lesser quality fastener if replacements are
15. Repairs which require welding should be performed
only with the benefit of the appropriate reference
information and by personnel adequately trained and
knowledgeable in welding procedures. Make reference
to "Techniques of Structural Repair Course" form
number JEG03719. Determine type of metal being
welded and select correct welding procedure and
electrodes, rods or wire to provide a weld metal strength
equivalent at least to that of parent metal.
16. Do not damage wiring during removal operations.
Reinstall the wiring so it is not damaged nor will it be
damaged in operation by contacting sharp corners, or by
rubbing against some object or hot surface. Do not
connect wiring to a line containing fluid.
17. Be sure all protective devices including guards and
shields are properly installed and functioning correctly
before starting a repair If a guard or shield must be
removed to perform the repair work, use extra caution.
18. Always use lift arm supports to keep bucket arms
raised and bucket tilted down when maintenance or
repair work is performed which requires the bucket in the
19. Loose or damaged fuel, lubricant and hydraulic lines,
tubes and hoses can cause fires. Do not bend or strike
high pressure lines or install ones which have been bent
or damaged. Inspect lines, tubes and hoses carefully.
Do not check for leaks with your hands. Pin hole (very
small) leaks can result in a high velocity oil stream that
will be Invisible close to the hose. This oil can penetrate
the skin and cause personal injury. Use cardboard or
paper to locate pin hole leaks.
20. Tighten connections to the correct torque. Make
sure that all heat shields, clamps and guards are
installed correctly to avoid excessive heat, vibration or
rubbing against other parts during operation. Shields
that protect against oil spray onto hot exhaust
components in event of a line, tube or seal failure must
be installed correctly.