LGMG AR16J User manual

Maintenance Manual
AR16J
Mobile Elevating Work Platform
△
!Warning
Before operation and maintenance, the
drivers and service personnel shall
always read and thoroughly understand
all information in this manual. Failure to
do so may result in, fatal accidents or
personal injury.
This manual must be kept with this
machine at all times..
LINGONG GROUP JINAN HEAVY MACHINERY CO., LTD.

Mobile Elevating Work Platform
Maintenance Manual
880*1230 mm 16 format 8 printed sheets
First edition and printed for the first time in December 2021
Lingong Group Jinan Heavy Machinery Co., Ltd.
Add: 12th Floor, Building 3, Lushangguoaocheng, 9777 Jingshi Road, Lixia District, Jinan,
China
Tel: [phone] Fax: [phone]
Technical service: 86-0531-67605017 Web: www.LGMG.com.cn
Accessories sales: 86-0531-67605016

Maintenance Manual of Elevating Work Platform
II
Contents
Foreword....................................................................................................III
Safety Precautions....................................................................................IV
Chapter 1 Maintenance...............................................................................1
1.1 Compliance and Obedience.............................................................. 3
1.2Check for Batteries............................................................................ 3
1.3Maintenance of worm-Type Slewing Drive......................................... 4
1.4Check Hydraulic Oil Level.................................................................. 5
1.5 Check for the Oil Level in the Reducer.............................................. 5
1.6 Replacement of the Gear Oil of Reducer.......................................... 6
1.7 Check for Engine Oil Level ............................................................... 6
1.8 Replacement of Engine Oil and Filter ............................................... 7
1.9 Check for Fuel Leakage.................................................................... 8
1.10 Vent Fuel Pre-Filter......................................................................... 8
1.11 Replacement of the Fuel filter ....................................................... 10
1.12 Check for Engine Air Filter............................................................ 10
1.13 Cleaning or Replacement of Air Filter.............................................11
1.14 Check for Coolant Liquid Level..................................................... 12
1.15 Filling or Replacement of Engine Coolant..................................... 12
1.16 Check for Engine Belt................................................................... 13
1.17 Regular Maintenance.................................................................... 13
1.18 Engine fault table.......................................................................... 14
1.19 Engine fault codes........................................................................ 16
Chapter 2 Schematic Diagram ..................................................................23

Maintenance Manual of Elevating Work Platform
III
Foreword
Thank you for choosing to use this Mobile Elevating Work Platform from LGMG. This machine is
designed according to AS/NZS1418.10:2011+A1:2017.The information specified in this manual is
intended for the safe and proper operation of this machine for its’ intended purpose.
For maximum performance and utilization of this machine, thoroughly read and understand all the
information in this manual before starting, operating, or performing maintenance on this machine.
Due to continuous product improvements, LGMG reserves the right to make specification changes
without any prior notifications. For any updated information, contact LGMG.
Ensure all preventive maintenance to the machine is performed according to the interval specified in the
maintenance schedule.
Keep this manual with this machine for reference at all times. When the ownership of this machine is
transferred, this manual shall be transferred with this machine. This manual must be replaced
immediately if it is lost, damaged, or becomes illegible.
This manual is copyrighted material. The reproduction or copy of this manual is not allowed without the
written approval of LGMG.
The information, technical specifications and drawings in this manual are the latest available when this
manual is issued. Due to continuous improvement, LGMG reserves the right to change the technical
specifications and machine design without notice. If any specifications and information in the manual are
not consistent with your machine, contact the service department of LGMG
△
!WARNING
Only personnel who have been properly trained and qualified to operate or
maintain this machine can operate, repair and maintain this machine.
Improper operation, maintenance, and repair are dangerous and can cause
personal injury and death.
Before any operation or maintenance, the operator shall thoroughly read this
manual. Do not operate, perform any maintenance or make any repairs on this
machine before reading and understanding this manual.
The user shall load the platform strictly according to the load rating of the
platform. Do not overload the platform or make any modifications to the platform
without permission from LGMG.
The operation regulations and preventions in this manual are only applicable for
the specified use of this machine.

Maintenance Manual of Elevating Work Platform
IV
Safety Precautions
The operator of this machine shall understand and follow the existing safety regulations of state and
local governments. If these are unavailable, the safety instructions in this manual shall be followed.
To help prevent accidents, read and understand all warnings and precautions in this manual before
operation or performing maintenance.
The safety measures are specified in Chapter 1 Safety.
It is impossible to foresee every possible hazard and the safety instructions in this manual may not cover
all safety prevention measures. Always ensure the safety of all personnel and protect the machine
against any damage. If unable to confirm the safety of some operations, contact LGMG.
The operation & maintenance prevention measures listed in this manual are only applicable to the
specified uses of this machine. LGMG assumes no responsibility if this machine is used beyond the
range of this manual. The user and the operator shall be responsible for the safety of such operations.
Do not perform any operation forbidden in this manual in any situation.
The following signal words are applicable for identifying the level of safety information in this manual.
△
! Danger:
An imminent situation, that if not avoided, will result in severe injuries or death. This
is also applicable to situations that will cause serious machine damage, if not
avoided.
△
! Warning:
A potentially dangerous situation, that if not avoided, may result in severe injuries or
death. This is also applicable to situations that may cause serious machine damage,
if not avoided.
△
! Notice:
A situation, that if not avoided, may result in minor or intermediate injury. This is also
applicable to situations that may cause machine damage or shorten machine service
life..

Maintenance Manual of Elevating Work Platform
1
Chapter 1 Maintenance

Maintenance Manual of Elevating Work Platform
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Maintenance Manual of Elevating Work Platform
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1.1 Compliance and
Obedience
1) The operator is only allowed to perform
routine maintenance items as specified in
this manual.
2) Carry out periodic maintenance and check
by trained maintenance technicians as
required by the manufacturer.
Maintenance Symbols
The following symbols are used in this manual
to help convey relevant meanings in the
instructions. When one or more symbols are
shown at the first part of the maintenance
program, the meanings expressed are as
follows.
It indicates a tool required to carry out this
procedure.
It indicates a new part required to carry out this
procedure.
It indicates that the engine must be in a cooling
state before carrying out this procedure.
1.2Check for Batteries
A sound battery condition is critical to good
engine performance and safe operation.
Improper electrolyte levels or damaged cables
or wires may cause damage to engine
components and bring hazardous conditions.
△
!Danger: Explosion Danger!
Electric Shock Danger! Burn Danger!
Keep away from fire, remove all rings,
watches and other jewelry. If necessary,
wear goggles, protective gloves and
protective clothing. Avoid contacting
overflowed electrolyte, and neutralize
any overflowed electrolyte with sodium
bicarbonate solution.
It is crucial for machine performance and
security-related operations to keep the battery
in proper condition. Improper voltage or
damaged cables and wires may cause damage
to components and danger. Inspect the battery
every 8 hours or daily.
Ensure the battery hold down hardware is
secure.
Inspect the battery cables for corrosion.
Inspect for fluid leaks, and whether or not
the battery is dry and clean.
Inspect the color of the battery hydrometer
(if applicable):
Hydrometer
Color
Meaning and Handling
Method
White
Lack of battery fluid,
please shut down the
machine, and stop using
Black
Lack of electricity
Green
Measure the voltage of
each battery, and voltage
lower than 11V indicates
damage to battery; and
voltage between 12.4V
and 12.7V indicates that
the battery is in good

Maintenance Manual of Elevating Work Platform
4
state
Color and description of hydrometer color
If the battery hydrometer’s color is green,
and voltage is more than 12V, but cannot drive
the starter, further check the battery circuits by
personnel with machine maintenance training
and certified to perform such work.
△
!Caution: If charging the battery
with an external power supply, only
use a charger accepted by LGMG.
Periodic maintenance
1) Maintenance items every quarter, every
year and every two years must be
performed by personnel with machine
maintenance training and certified to
perform such work.
2) A machine not used for a time exceeding
three months must not be put into use
again until a quarterly inspection and
maintenance have been performed.
Battery hydrometer
1.3Maintenance of
worm-Type Slewing Drive
There are three positions to be lubricated on the
worm-type slewing drive assembly, i.e.,
lubrication of the roller path (Position I),
lubrication of the engaging position (Position II)
between the worm and the slewing bearing, and
lubrication of the tapered roller bearing (Position
III). The specific lubrication positions are shown
as below:
Figure 1-1
Figure 1-2
1.3.1Maintenance before Delivery
△
!Notice: It refers to the lubrication
of the LGMG platform for working
at heights before delivery.
1) Position 1: Lubrication of the roller path:
The roller path is full and does not need to
be lubricated again.
2) Position 2: Lubrication of the engaging
position between the worm and the slewing
bearing
3) Quantity: It is required to inject 650g of
lubricating grease.
4) Lubrication method: Continuously inject
lubricating grease into the injection port of
lubricating grease while rotating the slewing
reducer
5) Model of the lubricating grease: 3#
lubricating grease
Position 1
Position 3
Position 2
Position 3
Hydrometer

Maintenance Manual of Elevating Work Platform
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6) Position 3: Lubrication of the tapered roller
bearing: the tapered roller bearing is full
and does not need to be lubricated again.
1.3.2 Market Maintenance
1) Position I: Lubrication of the roller path:
2) Quantity: Proper amount (18g is
recommended)
3) Lubricating frequency: Lubricate every year
or every 1,000 h, whichever occurs first.
4) Lubrication method: Continuously inject
lubricating grease into the injection port of
lubricating grease while rotating the slewing
reducer
5) Model of the lubricating grease: 3#
lubricating grease
1) Position II: Lubrication of the engaging
position between the worm and the slewing
bearing
2) Quantity: Proper amount (It is suggested to
inject a total of 400g of lubricating grease)
3) Lubricating frequency: Lubricate every
three months or every 150 h, whichever
occurs first.
4) Lubricating method: Continuously inject
lubricating grease into the injection port of
lubricating grease while rotating the slewing
reducer
5) Model of the lubricating grease: 3#
lubricating grease
1) Position III: Lubrication of the tapered roller
bearing:
2) Quantity: Proper amount (5g is
recommended at each position, and a total
of 10g for the two positions)
3) Lubricating frequency: Lubricate every year
or every 1,000 h, whichever occurs first.
4) Lubricating method: Direct lubrication
5) Model of the lubricating grease: 3#
lubricating grease
1.4Check Hydraulic Oil Level
Check it every 8 hours or every day.
Maintaining the hydraulic fluid at the proper oil
level is essential for the vehicle operation. If the
hydraulic oil is at an appropriate oil level, the
hydraulic components may be damaged.
Through daily inspections, the inspector can
determine changes in the hydraulic oil level
which can indicate problems with the hydraulic
system.
1) Make sure the boom is in the telescoped
position and then visually check the
hydraulic tank.
Result: The hydraulic oil is above the middle
scale of the level gauge and below the
maximum scale of the level gauge.
2) The hydraulic oil should be filled as needed.
No over-filling will be allowed. Hydraulic oil
Specification
Use
temperature
Oil type
Remark
The lowest
temperature＞
-25℃
L-HV32 Low
temperature
hydraulic oil
Chevron
-40℃＜The
lowest
temperature≤
-25℃
L-HS32 Ultra
low
temperature
hydraulic oil
The lowest
temperature≤
-40℃
10# Aviation
hydraulic oil
1.5 Check for the Oil Level in
the Reducer
Check this step every 250 hours or a quarter.
The incorrect oil level in the reducer shall lead to
the reduction of equipment performance and
continuous use will result in damage to
components.
1) Drive the equipment rotating until a plug is
at the highest point.
2) Remove the other plug and check the oil
level.
Result: The oil level shall be the same as the