© Mar. 2023 28 AB16EJ Plus Maintenance Manual
MAINTENANCE INSTRUCTIONS
4.2 GENERAL MAINTENANCE
INSTRUCTIONS
Safety and Operating Standards
Before adjusting and repairing the machine, the follow-
ing precautions should be taken:
1. Cut off the power source to make the machine un-
able to start, and have the machine marked.
2. All controls should be turned off to avoid accidental
actuation of the operating system.
3. If possible, lower the work platform to the lowest po-
sition; if not possible, ensure that the work platform
will not fall.
4. Before loosening or removing the hydraulic compo-
nents, the hydraulic oil pressure in the hydraulic
lines should be released.
Some maintenance work may require the machine to be
in a state other than those described in 1-4 above, and
such work should be carried out in accordance with the
specific safety measures listed in the Operation Manual
and this manual.
During machine maintenance, personal safety should
always be put first. Always take the weight of the parts
into consideration and never attempt to move heavy
parts without the assistance of mechanical equipment. It
is forbidden to place heavy objects in an unstable posi-
tion. Before lifting any machine parts, ensure the parts
are sufficiently supported.
Cleaning
1. The most important point to extend the service life
of the machine is to avoid dirt or impurities entering
the critical parts of the machine. Protective meas-
ures have been taken for the machine to prevent
such ingress. Protective plates, covers, seals, and
filters are installed to keep the air, fuel and oil supply
clean. However, in order to ensure that protective
measures function properly, they should be main-
tained at the prescribed interval.
2. When air, fuel, or oil lines are disconnected, adja-
cent areas, openings and fittings should be cleaned.
And immediately cover all openings to prevent for-
eign objects from entering.
3. During repair or maintenance, all components
should be cleaned and inspected, and all piping and
openings should be made clear. Cover all parts to
keep them clean. All parts must be clean before in-
stallation. New parts should be stored in containers
before use.
Components Disassembly and
Installation
1. A safe and reasonable plan should be developed for
the installation of machine components based on
this manual and the site conditions.
2. The personnel carrying out the disassembly and in-
stallation should have appropriate ability, and
should be able to use safety protection devices
correctly.
3. Before installation, qualified personnel should in-
spect the ground, all concealed foundations and an-
chors, or there should be reliable documentation
proving that the manufacturer's requirements are
met.
4. The wind speed at the installation site should not be
greater than 8.3m/s (18.6mph).
5. Before installation, check the site conditions such
as power supply, foundation and track to make sure
the installation requirements are met.
6. All components should be inspected prior to installa-
tion to verify they are in good condition.
7. High-strength bolts should be tightened in strict ac-
cordance with the requirements of this manual.
8. Acceptance of machine installed on site shall meet
the following requirements:
1) Relevant inspections and functional tests
should be carried out to confirm that the ma-
chine has been installed correctly, that specific
functional requirements are fulfilled and that all
safety components are operating properly.
2) Static and dynamic load tests should meet the
relevant standards.
3) Before putting the machine into service, the
qualified person shall issue a handover certifi-
cate confirming the integrity of the machine. All
test/inspection results should be recorded and
an inspection report should be prepared (includ-
ing the inspector’s name, title and company and
inspection date).
9. Machine disassembly should also meet the safety
requirements for installation.
10. If mechanical assistance is required when disas-
sembling the machine, reasonable lifting points,
spreaders and lifting equipment should be selected
as required by this manual and site conditions. Use
adjustable lifting devices whenever possible. All
spreaders (chains, slings, etc.) should be parallel to
each other and perpendicular to the tip of the part
being lifted whenever possible.
11. If a component with the assembly angle relative to
the support less than 90° needs to be removed, take
special care since the eye bolt or similar bracket
cannot provide adequate supporting force in such
case.
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