LGMG SR2669D Use and care manual

LGMG North America Inc.
Operation and Safety Manual
SR2669D/SR3369D/SR4069D/SR3390D/
SR4390D/SR5390D
Rough Terrain
Mobile Elevating Work Platform
ANSI
△
!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.

This page left blank intentionally

LGMG North America Inc. Operation and Safety Manual
I
Contents
Contents.......................................................................................................I
Chapter 1 Safety.........................................................................................1
1.1Danger............................................................................................... 3
1.2 No Operation Except Following Cases ............................................. 3
1.3 Classification of Hazards .................................................................. 3
1.4 Intended Purpose ............................................................................. 3
1.5 Safety Sign Maintenance.................................................................. 3
1.6 Risk of Electric Shock....................................................................... 4
1.7 Safety of Work Area.......................................................................... 4
1.8 Crushing Hazards............................................................................. 5
1.9 Hazards When Operating on a Slope ............................................... 5
1.10 Falling Hazards............................................................................... 6
1.11 Crash Hazards................................................................................ 6
1.12 Hazard of Component Damage ...................................................... 7
1.13 Hazard of Explosion and Fire.......................................................... 7
1.14 Machine Damage Hazards ............................................................. 7
1.15 Personal Injury Hazards.................................................................. 7
1.16 Battery Safety................................................................................. 7
1.17 Tilting Hazard.................................................................................. 8
1.18 Ground Information......................................................................... 8
Chapter 2 Machine Nomenclature.............................................................11
Chapter 3 Decals and Warning Labels......................................................15
Chapter 4 Specifications ...........................................................................25
Chapter 5 Control Station..........................................................................73
5.1 Ground Control Station................................................................... 75
5.2 Platform Control Station.................................................................. 81
5.3 Basic Operation.............................................................................. 84
Chapter 6 Pre-Operation Check................................................................95
6.1 No Operation Except Following Cases ........................................... 97
6.2 Basic Principles .............................................................................. 97
6.3 Check Before Operation ................................................................. 97
Chapter 7 Workplace Check......................................................................99
7.1 No Operation Is Allowed Unless.................................................... 101
7.2 Basic Principles ............................................................................ 101
7.3 Workplace Inspection.................................................................... 101
Chapter 8 Functional Test .......................................................................103
8.1 No Operation Is Allowed Unless.................................................... 105

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II
8.2 Basic Principles ............................................................................ 105
8.3 Functional Test.............................................................................. 105
8.4 Test on the Ground Control Station............................................... 105
8.5 Platform Control Station Test ........................................................ 106
8.6 Tilt Sensor Operation Test............................................................. 107
8.7 Upper Limit Switch and Outriggers (If Equipped) Test................... 107
Chapter 9 Operation Instructions.............................................................109
9.1 No Operation Is Allowed Unless.....................................................111
9.2 Basic Principles .............................................................................111
9.3 Emergency Stop............................................................................111
9.4 Engine Startup...............................................................................111
9.5 Operation from Ground..................................................................112
9.6 Operation from Platform.................................................................112
9.7 Drive on Slope...............................................................................113
9.8 Platform Extension and Retraction.................................................113
9.9 Emergency Descent ......................................................................113
9.10 Using Platform Control Station to Operate on the Ground ...........114
9.11 Outrigger Operation .....................................................................114
9.12 Safety Arm Use............................................................................114
9.13 Auxiliary Descent (If Equipped)....................................................114
9.14 Fall Protection..............................................................................114
9.15 DPF Regeneration (If Equipped)..................................................114
9.16 Low Temperature Start Kit (If Equipped) ......................................116
9.17 After Each Use.............................................................................116
Chapter 10 Transportation and Lifting Instructions ..................................117
10.1 Compliance..................................................................................119
10.2 Freewheel Configuration for Trailers............................................119
10.3 Securing on Trucks or Trailers During Transportation ..................119
10.4 Ensuring Transportation Safety....................................................119
10.5 Lifting Guidance.......................................................................... 120

LGMG North America Inc. Operation and Safety Manual
III
Foreword
Thank you for choosing to use this Mobile Elevating Work Platform from LGMG North America. This
machine is designed according to A92.20-2021.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 North America reserves the right to make specification
changes without any prior notifications. For any updated information, contact LGMG North America.
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 North America.
The information, technical specifications and drawings in this manual are the latest available when this
manual is issued. Due to continuous improvement, LGMG North America 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, please contact the service department of LGMG North
America.
△
! 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 North America.
The operation regulations and preventions in this manual are only applicable for the
specified use of this machine.

LGMG North America Inc. Operation and Safety Manual
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 North America.
The operation & maintenance prevention measures listed in this manual are only applicable to the
specified uses of this machine. LGMG North America 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.

LGMG North America Inc. Operation and Safety Manual
1
Chapter 1 Safety

LGMG North America Inc. Operation and Safety Manual
2

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3
1.1Danger
Failure to disobey the instructions and safety
rules in this manual may cause death or serious
injuries.
1.2 No Operation Except
Following Cases
You have understood and practiced the rules for
safe operation of the vehicle in this manual.
1) Avoid dangerous situations. Know and
understand the safety rules before
proceeding with the next step.
2) Always perform a pre-operation inspection.
3) Always perform a pre-use functional test.
4) Check the workplace.
5) Use the vehicle only for its intended
purpose.
6) Read, understand, and follow the
manufacturer's instructions and safety rules
- safe operation manuals and vehicle
labels.
7) Read, understand and follow user safety
rules and work site regulations.
8) Read, understand and follow all applicable
government laws and regulations.
9) You have received the training on safe
operation of the vehicle.
1.3 Classification of Hazards
△
!NOTICE
Classification of hazards
The meanings of symbols, color codes
and characters of LGMG North
America’s products are as follows:
Security warning symbol: Are used for
warning of potential personal injuries.
Observe all safety instructions below
these signs, to avoid situations
causing potential personal injury and
death.
Red: Signifies dangerous situations. If
not avoided, will result in personal
death or severe injury.
Orange: Signifies dangerous
situations. If not avoided, may result in
personal death or severe injury.
Yellow: Signifies dangerous situations.
If not avoided, may result in minor or
intermediate personal injury.
Blue: Signifies dangerous situations. If
not avoided, property loss or damage
can occur.
1.4 Intended Purpose
The use of the machine is only limited to lift staff,
tools and materials to the high work place.
△
!CAUTION: It is forbidden to carry
loads.
1.5 Safety Sign Maintenance
1) The operators should always keep in mind
their safety when replacing any missing or
damaged safety signs.
2) The safety decal should be cleaned with
mild soap and water.
3) Do not use solvent-based cleaners as they

LGMG North America Inc. Operation and Safety Manual
4
may damage the material of the safety
label.
1.6 Risk of Electric Shock
1) This machine is not insulated and is not
provided with electrical shock protection
when it comes into contact with or near
electrical wire.
2) This machine should be kept an adequate
safety distance from power line and
electrical equipment according to
applicable government laws and
regulations and the following table.
Voltage
Required safety
distance
0V-50 KV
3.05m/10ft
50 KV-200 KV
4.60m/15ft
200 KV-350 KV
6.10m/20ft
350 KV-500 KV
7.62m/25ft
500 KV-750 KV
10.67m/35ft
750 KV-1,000 KV
13.72m/45ft
3) The effects of strong winds or gusts on the
movement of the platform, the swinging and
slackening of the wires should be
considered.
4) If the machine comes into contact with live
wires, keep away from the vehicle. No one
is allowed to touch or operate the vehicle
on the ground or platform before cutting off
the power supply.
5) Do not operate the machine when there is
lightning or storms.
6) Do not use the machine as a ground wire
during welding.
1.7 Safety of Work Area
1) The platform can only be raised on a solid
and flat level ground.
2) The speed shall not exceed 1.1 km/h
/0.628mph (SR90D)/ 0.5Km/h/0.28mph
(SR69D) when the platform is raised.
3) The tilt alarm cannot be regarded as level
indicator. When the machine is seriously
inclined, the tilt alarm of the chassis and
platform will ring.
4) If tilt alarm sounds, lower the platform and
move the machine to solid level ground. If
the tilt alarm rings when the platform is
raised, the platform shall be lowered very
carefully.
5) Do not operate the machine in strong winds
or gusts. The surface area of the platform
or load cannot be increased. Increasing the
area exposed to the wind will reduce the
stability of the machine.
6) If the machine is used outdoors, do not
elevate the platform when wind speed is
above 12.5 m/s. If wind speed exceeds the
limit after elevating the platform,
immediately lower the platform and stop all
machine operation.
7) In the elevated state of the platform, the
machine cannot run on uneven terrain, an
unstable surface, or in other dangerous
situations, or near these areas.
8) In the stowed state, the machine must run
very carefully and reduce its speed when it
runs on uneven terrain, unstable or smooth
surface with stones, or near holes, or a
steep slope.

LGMG North America Inc. Operation and Safety Manual
5
9) Do not drive in high-speed descending any
slope.
10) Do not use the platform control station to
release the platform when the platform is
tilted, stuck, or its normal operation is
obstructed by other nearby obstacles.
Before using the ground control station to
release the platform, all personnel must exit
the platform.
11) Do not use the platform to push or pull
anything outside the platform.
12) Do not use the machine as a crane.
13) Do not place, fasten and fix or suspend
loads on any component of the machine.
14) Do not place ladders or scaffolds within the
platform or against any component of the
machine.
15) Do not attach platforms to adjacent
buildings.
16) Do not change or disable limit switch.
17) Do not tie platforms to adjacent
components.
18) Do not place loads outside the platform
guardrail.
19) Do not change or damage any component
that may affect the safety and stability of
the machine.
20) Do not replace key parts that affect
machine stability with parts of different
weights or specifications.
21) Do not change or modify the aerial work
platform or install additional equipment for
placing tools or other materials on platforms,
pedals or guardrails, which will increase
platform weight and surface area or load.
22) Do not push machines or other objects with
the platform.
23) Tools and materials, evenly distributed and
able to be safely moved by the operator in
the platform, can be carried in the platform
only.
24) Do not use the machine on a movable
surface or vehicle.
25) Keep all tires in good condition and
appropriately tighten the lug nuts.
26) Ambient temperature for machine operation
is -20℃-40℃.
27) The allowable fluctuation of machine power
supply voltage is ±10%.
1.8 Crushing Hazards
1) Do not place arms, hands, or fingers in any
position where there is a hazard of potential
crushing by the machine’s scissors.
2) Do not place your hands in a position
where you may get pinched when folding
the guardrail.
3) Grasp the platform guardrail all the time
when removing the pins fixed on the
guardrail. Do not let the platform guard rail
fall off.
4) When the machine is being driven from the
ground using the controller, use good
judgment and carefully plan the travel path.
Keep a safe distance between the operator,
machine and any fixed objects, walls, or
buildings.
1.9 Hazards When Operating
on a Slope
Do not drive the machine on a slope that
exceeds the slope and side slope rating of the
machine. The rated value of slope is applicable
to a stowed machine.
SR2669D(With outrigger)/SR3369D/SR4069D:

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Maximum rated
value of slope in
folding position.
35% (19.3゜)
Maximum rated
value of side slope in
folding state.
35% (19.3゜)
SR2669D(Without outrigger)/SR3390D/
SR4390D/SR5390D:
Maximum rated
value of slope in
folding position.
40% (22゜)
Maximum rated
value of side slope in
folding state.
40% (22゜)
△
!NOTICE: Rated value of slope is
limited by the ground conditions and
traction.
1.10 Falling Hazards
1) All workers in the platform must use
approved safety harnesses and attach the
lanyard to the provided anchor points in the
platform. Each anchor point is limited to
one lanyard.
2) Do not climb on or sit on the guard rail of
the platform. Firmly stand on the platform
floor at all times.
3) Do not climb down the platform scissors
when the machine is elevated.
4) Keep the platform floor free from debris.
5) Shut the platform door before operation.
6) Do not operate the machine if the guard rail
is not correctly installed.
7) Do not enter or exit the platform unless the
machine is in the stowed position.
1.11 Crash Hazards
1) Pay attention to any items or obstacles
within the machine’s sight line and in any
blind spots when starting or running the
machine.
2) Pay attention to the position of the
extending platform when moving the
machine.
3) Check the workstation to avoid any
overhead barriers or other possible hazards
in the work site.
4) Pay attention to any crushing hazards
when holding the guard rail of the platform.
5) The operator must follow the
manufacturer’s service rules for personal
protection equipment, the service rules for
the workstation, and the laws and
regulations made by the local government.
6) Observe and follow the traveling arrow and
the turning direction arrows on the platform
controller and the platform’s label and
nameplate.
7) Do not operate the machine on the line of
any crane or movable overhead machine,
unless the crane controller is locked and/or
the potential bump prevention measure is
taken.
8) Dangerous driving or careless operation
when running the machine is strictly
prohibited.
9) The platform can be lowered only when
there are no personnel or barriers below
the platform.

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7
10) Limit travel speed according to ground
conditions, traffic, road grade, personnel
position, or any other possible bump
factors.
11) It is recommended the operator wear a
qualified safety helmet when operating the
machine.
1.12 Hazard of Component
Damage
1) Do not use any battery or charger greater
than 12 V to start up the engine.
2) Do not use the machine as a ground for
welding.
3) Do not use the machine in a place where
there may be a magnetic field.
1.13 Hazard of Explosion and
Fire
1) Do not use the machine in a hazardous
place where there may be inflammable or
explosive gas or particles.
2) Do not start the engine if liquefied
petroleum gas (LPG), gasoline, diesel or
other explosive substances are smelled or
perceived.
3) Do not refuel the machine when the engine
is running.
4) Refuel the machine or charge the battery
only in open and well-ventilated places far
away from sparks, open flames, burning
cigarettes, etc.
1.14 Machine Damage
Hazards
1) Do not use a damaged or malfunctioning
machine.
2) Make a complete operational and function
check before each shift. Attach a tag on a
damaged or malfunctioning machine
immediately and stop all operation.
3) Be sure to perform all maintenance and
operation according to the instructions in
this manual.
4) Be sure to keep all labels and decals at the
appropriate locations. Replace any that are
not legible.
5) Be sure to keep this manual in the manual
box of the platform.
1.15 Personal Injury Hazards
1) Do not operate the machine if it is leaking
hydraulic oil. Leaking hydraulic oil under
pressure can pierce or burn skin.
2) Always operate the machine in a
well-ventilated place to avoid poisoning of
carbon monoxide.
3) Severe injury may result if any component
below the cover is touched by mistake.
Only trained technicians can perform
maintenance to the components under the
cover. The operator shall only perform
maintenance before the pre-operation
inspection. Be sure to keep all
compartments closed and locked during
operation of the machine.
4) It is prohibited to touch the heated heaters.
5) It is forbidden to carry out maintenance
work when the equipment is electrically
charged or the hydraulic system is under
pressure.
1.16 Battery Safety
Combustion Hazards
1) The battery contains acid. Wear protective
clothing and safety goggles when
performing maintenance on the battery.
2) Take measures to prevent acid from
overflowing out of the battery or being
touched. Neutralize the overflowed acid
material from the battery with soda and
water.
Explosion Hazard
1) Keep the battery away from any sparks or
open flames. The battery can release an

LGMG North America Inc. Operation and Safety Manual
8
explosive gas.
2) Do not touch the battery terminal or the
cables with any tool that may cause a
spark.
Electric Shock/Burn Hazard
Avoid contacting electrical terminals.
1.17 Tilting Hazard
1) The outrigger can only be lowered on the
firm, stable ground. Be careful to avoid
steep slopes, holes, unstable or smooth
slopes and other potential hazards.
2) Be sure to lower the outrigger at the
steering end first, when the automatic
leveling function is not used and a single
outrigger is lowered.
3) Raise the platform only when the machine
is level. Do not set the machine to be
elevated when it is impossible to make the
machine level by outrigger only.
4) Raise the platform only when all four
outriggers are fully lowered and in contact
with the ground and the machine is level.
5) Do not adjust outriggers when the platform
is elevated. Do not drive the vehicle when
outriggers are lowered.
1.18 Ground Information
△
! WARNING: Rollover and personal
injury will be caused under severe
working conditions and complex and
unsafe ground conditions, and stable
ground conditions and good working
conditions can ensure the normal
operation of the machine; therefore
before operation, verify that the
ground in the working area is safe and
strong enough to support the machine.
△
! DANGER: Rollover and personal
injury may occur under the following
conditions:
On steep slopes or in caves;
When there are protrusions,
obstacles or debris on the ground;
On the inclined surface;
On the unstable or smooth surface;
Near the mining area where the soil
foundation is soft soil;
On saturated soil or frozen soil;
On suspended floor;
On kerbs and road edges;
On surface support that is not
strong enough to withstand the full
load of the machine;
Under other possible unsafe
situations.
The ground load bearing information of
the machine is shown in the table below:
Model
Tire contact
pressure
(KPa/psi)
Ground
pressure of
tire (KPa/psi)
Ground
pressure of
outrigger
(KPa/psi)
SR2669D
(With
outrigger)
540.11/78.34
8.83/1.28
7.23/1.05
SR3369D
524.48/76.07
8.71/1.26
7.13/1.03
SR4069D
575.46/83.46
9.91/1.44
8.12/1.18
SR3390D
887.25/128.68
9.21/1.34
7.59/1.1
SR4390D
887.59/128.73
9.55/1.39
7.87/1.14
SR5390D
888.18/128.82
10.14/1.47
8.35/1.24
△
! CAUTION: The ground load
bearing information given herein is for
reference only, and does not consider
the optional devices of the machine.
Before using the machine, always
verify that the ground of the working
area is safe and strong enough to
support the machine.
Tire specification:

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9
Model
Drive wheel
load-6km/h
（Kg/lbs）
Maximum static
load
（Kg/lbs）
SR2669D
2060/4542
3000/6614
SR3369D
2060/4542
3000/6614
SR4069D
2060/4542
3000/6614
SR3390D
4135/9116
4650/10251
SR4390D
4135/9116
4650/10251
SR5390D
4135/9116
4650/10251

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11
Chapter 2 Machine Nomenclature

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13
SR2669D/SR3369D/SR4069D
No.
Name
No.
Name
1
Platform Extension Locking
Handle
9
Steering Wheel
2
Platform Guard Rails
10
Hydraulic Oil Tank
3
Extension Platform
11
Fuel Tank
4
Document Box
12
Non-Steering Wheel
5
Platform Control Station
13
Outrigger(If Equipped)
6
Lanyard Anchorage Points
14
Ladder
7
Platform Entrance Door
15
Scissor Stack Arm
8
Ground Control Station
16
Engine Side
17
LPG Tank( If Equipped)

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14
SR3390D/SR4390D/SR5390D
No.
Name
No.
Name
1
Platform Extension Locking
Handle
9
Steering Wheel
2
Platform Guard Rails
10
Hydraulic Oil Tank
3
Extension Platform
11
Fuel Tank
4
Document Box
12
Non-Steering Wheel
5
Platform Control Station
13
Outrigger Foot Pad(If Equipped)
6
Lanyard Anchorage Points
14
Outrigger Bracket(If Equipped)
7
Platform Entrance Door
15
Scissor Stack Arm
8
Ground Control Station