AB18EJ&18HJ Maintenance Manual 5-1 © Oct 2020
5 MAINTENANCE PROCEDURES
This section provides specific procedures for scheduled
maintenance inspection.
UNSAFE OPERATION HAZARD
Improper maintenance may result in
death, severe injury or machine
damage.
HIGH PRESSURE HAZARD
Before releasing or removing the
hydraulic components, release the
hydraulic oil pressure in the
hydraulic circuit, particularly with the
counterweight valve.
Observe the following rules：
• Maintenance inspections shall be completed only by
a person trained and qualified on the maintenance
of this machine.
• Routine maintenance inspection contains the
inspection items to be performed daily for normal
machine operation. The service technician must
perform the routine maintenance inspection and
complete the report in details.
• Scheduled maintenance inspection shall be
completed quarterly, half-yearly, and annually. The
service technician must perform the scheduled
maintenance inspection and complete the report in
details.
• Timely tag and remove from service a damaged or
malfunctioning machine.
• Repair any machine damage or malfunction before
operating machine.
• Keep all inspection records for at least 10 years or
until the machine has been removed from service or
as required by the machine owner/company/keeper.
• Machines that have been out of service for a period
longer than 3 months must complete the quarterly
inspection.
• The replacement parts used in the maintenance
should be identical or equivalent to the original
parts.
• Unless otherwise specified, perform the
maintenance procedures according the following
terms and conditions:
– Park the machine on flat, level and solid ground.
– Place the machine in non-operating position.
– Turn the key switch on ground controller to OFF
position and remove the key to prevent
unauthorized use of the machine.
– Pull out the red emergency stop buttons on
ground and platform controls to OFF position to
avoid unintended start-up of the operating
system.
– Turn off the main power switch.
– Disconnect all DC power supply.
– Lock all wheels to prevent movement of the
machine.
CONDUCTING A PRE-
DELIVERY INSPECTION
When the machine owner/company changes, in
addition to conducting a pre-delivery inspection, the
corresponding inspection shall be carried out according
to the maintenance schedule requirement and repair &
inspection report. When conducting a pre-delivery
inspection, comply with the following requirements:
1. It is the responsibility of the machine owner/
company to perform a pre-delivery inspection.
2. Follow this procedure each time before delivery.
Performing a pre-delivery inspection could reveal
potential problems with the machine before you
begin putting the machine into service.
3. Never use a damaged or malfunctioning machine.
Tag the machine and do not use it.
4. Only professionally trained, qualified personnel may
repair the machine and must follow the procedures
as stated in operation manual and maintenance
manual.
5. A competent operator must conduct daily
maintenance on this machine as stated in operation
manual and maintenance manual.
Before delivering the machine, complete the following
record using these instructions:
1. Prepare the machine before delivery, which
includes performing a pre-delivery inspection,
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