SDLG LG946L Manual

WA R N I N G
Operators and maintenance persons should read this manual
carefully and understand these instructions before use to
avoid serious accident. For the convenience of relevant
people using this manual, it should be easily accessable and
kept in readable condition.
Operation & Maintenance Manual
LG946L
WHEEL LOADE
R
SHANDONG LINGONG CONSTRUCTION MACHINERY CO.，LTD

Operation & Maintenance Manual──LG946L Wheel Loader
II
LG946L WHEEL LOADER
Operation & Maintenance Manual
880×1230 mm 16# 7.25pieces
2nd Edition in 2012. 01 1st Print
SHANDONG LINGONG CONSTRUCTION
MACHINERY CO.，LTD
Address: Linyi Economic Development Zone, Shandong, 276023
Tel: [phone]
Fax: [phone]
Website：www.sdlg.cn
Services Tel：[phone] 4006587999 0539-8785800
Services Fax：[phone]

Operation & Maintenance Manual──LG946L Wheel Loader
Table of Contents
PREFACE ............................................................................................................................................................. I
SAFETY INFORMATION .................................................................................................................................III
CHAPTER I SAFETY ..........................................................................................................................................4
1 SAFETY LABEL POSITIONS AND THE CONTENTS ..........................................................................4
2 SAFETY RULES .......................................................................................................................................9
3 SAFETY OPERATION............................................................................................................................11
4. STARTING SAFELY ..............................................................................................................................15
5 SAFETY DRIVING .................................................................................................................................18
6 SAFETY OPERATION............................................................................................................................24
7 SAFETY PARKING.................................................................................................................................28
8 SAFETY EXAMINATION AND REPAIR..............................................................................................29
9 SAFETY TRANSPORTATION ...............................................................................................................40
CHAPTER II INTRODUCTION........................................................................................................................42
1 GENERAL VIEW OF THE MACHINE & COMPONENTS’ NAME ....................................................42
2 GEOMETRICAL DIMENSIONS............................................................................................................43
3 PRODUCT TYPE AND ITS MEANING ................................................................................................45
4 NAMEPLATE ..........................................................................................................................................45
5 USE CONDITIONS.................................................................................................................................46
6 CIRCUMSTANCES REQUIREMENT ...................................................................................................47
7 FEATURES ..............................................................................................................................................47
8 TECHNICAL PERFORMANCE & PARAMETER ................................................................................48
CHAPTER III OPERATION AND APPLICATION...........................................................................................50
1 BE FAMILIAR WITH MACHINE..........................................................................................................50
2 RUN-IN PERIOD OF NEW MACHINE.................................................................................................64
3 OPERATION AND USE OF LOADER...................................................................................................65
CHAPTER ⅣMAINTENANCE .....................................................................................................................90
1 MAINTENANCE GUIDE .......................................................................................................................90
2. DETAILED RULES OF MAINTENANCE............................................................................................92
3 CONTENT OF MAINTENANCE ...........................................................................................................98
CHAPTER V SYSTEM PRICIPLE DIAGRAM ..............................................................................................102
1 TRANMISSION SYSTEM....................................................................................................................102
2 HYDRAULIC SYSTEM........................................................................................................................102
3 BRAKE SYSTEM..................................................................................................................................103
4 ELECTRIC SYSTEM ............................................................................................................................105

Operation & Maintenance Manual──LG946L Wheel Loader
I
PREFACE
Thank you for purchasing the wheel loader produced by Shandong Lingong.
This manual is a guideline for users to operate and maintain this machine properly, and place it
in the bag behind the cab seat or inside the door. All personnel should be ready to read it at times.
If this manual is lost or damaged, please contact with our company or dealers for a new one.
If you sell the machine, be sure to give this manual to the new owners.
Parameters, figures and information included in this manual apply only to basic loaders. For
those derivative products, please consult us or refer to the relative manuals.
When selecting working equipment, please follow the user manual of the working equipment to
assemble and disassemble, replace and use.
In addition, please read carefully the attached technical user manual for the diesel engine and
other functioning parts about operation, use and maintenance.
We are continually striving to improve the quality of our products, to produce more advanced
and a safer engineering machine. We reserve the right, at our sole discretion, to change or modify
our design, but we do not promise to apply the changes to products that are sold. We also reserve
the right to change the data and machine, and the right to maintain it. The design, operation and
user information in this document is subject to change without notice. Customer feedback is very
welcomed. If you would like to comment on any aspect of this manual or our products in general,
please feel free to contact us.
Please give us feed back about the shortcomings immediately upon using our products, so that
we can continue to improve our products to satisfy your requirements.
All rights are reserved. The contents of this publication may not be reproduced in any form, or
communicated to a third party without prior written permission of Shandong Lingong
Construction Machinery Co. Ltd.

Operation & Maintenance Manual──LG946L Wheel Loader
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△
! WA R N I N G
zThe wrong operation, maintenance and repair could result in injury or death.
zAn operator should read this manual carefully before operation or maintenance.
Never attempt to operate, maintain or repair the machine before reading and
understanding this manual.
zThe operation specifications and precautions given in the manual only apply to
intended uses of the machine. If the machine is used for any unintended purpose that
is not specifically prohibited, ensure the safety of yourself and others before using.
zAny operation and actions which are in conflict with the description in this manual
are prohibited.

Operation & Maintenance Manual──LG946L Wheel Loader
III
SAFETY INFORMATION
Operators should know and obey the safety criteria described in national and local laws. If there
is no such national or local criteria, please follow the rules described in this manual.
Most accidents are caused by the failure to follow fundamental safety regulations for the
operation and maintenance of machines. To avoid accidents, please read, understand and follow
all precautions and warnings in this manual about the machine before performing any operation
or maintenance.
Safety precautions are specified in SAFETY of Chapter I.
Safety information described in this manual cannot include safety precautions for every
circumstance that might involve a potential hazard in operation and maintenance. Therefore, if
procedures or actions which are not recommended in this manual are used, the safety of the
operator and machine must be confirmed. Otherwise, consult us or the dealers.
The safety precautions for operation and maintenance in this manual only apply to those
conditions specified by the machine. If the uses of the machine are not specified in the manual,
users should assume full responsibility for their actions. We will not bear any safety
responsibility for the operators or machine.
In any case, you should not engage in prohibited operations as described in this manual.
The following signs are used for identification of safety information in this manual:
△! DANGER── This word is used in safety messages and on safety labels where there
is a high possibility of serious injury or death if the hazard is not avoided. These safety
messages or labels usually describe precautions that must be taken to avoid the hazard.
Failure to avoid this hazard may also result in serious damage to the machine.
△! WA R N I N G ── This word is used in safety messages and on safety labels where
there is a potentially dangerous situation. Failure to avoid this hazard may also result in
serious injury or death. Failure to avoid this hazard may also result in serious damage to the
machine.
△! NOTICE── This word is used in safety messages and on safety labels for the
hazards that could result in minor or moderate injury if the hazard is not avoided. This word
is used for precautions that must be taken in order to avoid actions which could shorten the
life of the machine.

Operation & Maintenance Manual──LG946L Wheel Loader
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CHAPTER I SAFETY
△
!WARNING
Read and follow all safety precautions. Failure to do so may
result in serious injury or death.
1 SAFETY LABEL POSITIONS AND THE CONTENTS
1.1 Safety Label and Its Position
The positions of safety labels of this machine are shown in the figure 1-1 and figure 1-2. Please
read carefully and follow the contents of all the safety labels. Please maintain the labels; when a
label becomes lost, broken or unclear, immediately repair or replace the label. If any component
attached with safety labels is replaced, please make sure the new component has the same safety
label.
When cleaning the safety labels, please use cloth, soap and water. Do not use chemical and gas
cleansers.
Figure 1-1 Figure of safety label position

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1.2 The Contents of Safety Label
1. Notice for operation 2. Notice for driving
3. Warning for starting
Located above the start button
4. Limit position of lift arm 5. Danger of lift arm 6. Start lifting
Located on the right front glass
inside the operator cab
Located on the left front glass
inside the operator cab
maintains
Sitting allowed only in cab.
s
loading.
;
while in operation
Located on the lifting position
of front and rear frames
(Lock the lift arm cylinder before
entering dangerous areas.)
Located on both sides of lift arms
Located on both sides of
lift arm

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7. Notice for Hydraulic oil tank 8.Antifreezefluid
9. Notice for the door of operator cab 10. Notice for high temperature
11. Notice for fuel oil tank 12. Notice for hot water
Located on the hydraulic oil tank. Located on the left side of operator cab
door and inlet port of water tank of engine
hoo
d
Located on outside of operator cab door Located on vent-pipe of engine hood
Located on the fuel oil tank
(Pay attention to the steam or hot water ejection)
Located on the cover of engine water tank.

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13. Notice for hanging 14. Alarming notice for 15. Alarming notice for
touching the machine. security distance.
16. Keep touch with three points 17.Air Storage Tank to drain
Located on the right and left platform frames. Located on the Air Storage Tank’s body
18. Air Storage Tank to drain 19. Battery explosion-ban of any fires
Located on the Air Storage Tank’s body Located on the cell box
Located on hanging part
of the front and rear
b
racket.
Located on the both
sides of hood of engine.
When all the parts are
stopped ,the machine
can be touched.
Located on the both
sides of hood of engine.

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20.Pilot single handle control （if assembly）21. Notice for adding antifreeze fluid
Located on right control box Located on cover of water tank of engine hood
22. installs position of fire extinguisher
Located on rear left crutch of operator cab

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2 SAFETY RULES
2.1 Safety Rules
zOnly trained and authorized people can be
permitted to operate and maintain the machine.
zFollow all safety rules, precautions and instructions
when the machine is in operation or being
maintained.
zNever operate machine when you are less than
fully alert. Don’t operate machine if you feel sick,
or feel sleepy after taking drugs or drinking alcohol
when your judgment may be disturbed.
zWhen working with another operator or with a
person on worksite traffic duty, be sure that all
people understand all hand signals that are to be
used.
zFollow all the safety rules.
2.2 Safety Devices
zBe sure all guards and covers are in their proper positions, and repair them when damaged.
zUse the safety devices properly, such as parking brake switch and safety belt (if assembled).
zNever remove any safety devices. Always keep them in good operating condition.
zImproper use of safety devices could result in serious body injury are even death.
zIn the circumstance with the risk of hurt caused by falling objects, user should purchase the

Operation & Maintenance Manual──LG946L Wheel Loader
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machine with falling object protective structures.
2.3 Protective Items
zWear protective items, such as helmet made of hard
materials, safety glasses, shoes, mask reflector
profective vest, earplugs, heavy gloves when the
machine is in operation or being maintained.
zMake sure to wear a helmet made of hard materials,
safety glasses and heavy gloves if there are scattered
metal chips or other minute particles in the operation,
particularly when cleaning the filter elements of the
air cleaner with compressed air, and be sure that
there is no one near the machine.
zNever wear loose clothing, jewelry and loose long
hair. They can be caught by control levers (or control
handles) or moving parts, which may cause serious injury and even death.
zAvoid wearing oily clothes because they are flammable.
zCompressed air may hurt the body. When using compressed air, be sure to wear a mask,
safety cloth and shoes. The pressure of compressed air should be lower than 0.3MPa.
zAll the protective items should be routinely examined for proper function before use.
2.4 Unauthorized Modification
zAny modification without the companies authorization may result in serious personal
danger.
zPlease consult Shandong Lingong Construction Machinery Co. Ltd or the sellers before
making modifications.
zThe company assumes no responsibility for any injury or damage caused by unauthorized
modifications.

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3 SAFETY OPERATION
3.1 Be Familiar with Machine
zStudy the operation manual for the machine. Learn
the structure of the machine, operation and
maintenance. Be familiar with the positions and
functions of the buttons, operation handles, meters
and warning devices.
zKnow all the rules in operation; understand the
gestures of signaling staff.
zIf there is any oil near the operating positions that
can cause slippage, clean it immediately.
zCheck all the safety items, for example, the safety
protective devices should be at the safe status. Make
sure the tires are not worn and the tire pressure is
normal. Routinely check for oil leaks, water leaks,
air leaks, deformation, loose fittings and abnormal
sounds or accidents may occur. Check the safety
devices routinely.
3.2 When Leaving Operator’s Seat
zAlways keep brake valve manual control lever (or
the parking brake switch) in the lock position.
zLevel the working equipment completely to the
ground and put the gear control lever and working
equipment control handle in the neutral position,
then stop the engine and turn off the starting switch.
Set the stop block on the front and rear wheels if
necessary.

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zMake sure the loader is locked and put the key in a safe place.
3.3 Mounting and Dismounting
zCheck the handrails and pedals, and if there is oil,
lubricant or dirt clean them first to prevent slippage.
Repair the broken items and fasten the loose nuts.
zNever jump on or off the machine. Never get on or off
a moving machine.
zWhen getting on or off the machine, face the machine and use the
handrails and pedals to ensure that you can support yourself. Keep at
least three-point contact (two hands/one foot or two feet/one hand) with
the handrails and pedals to ensure body stability.
zNever hold any control levers when getting on or off the machine.
zIf this machine’s cab assembled tow doors on the left and right , in
order to prevent to mistake operation ,please insure to make the door
on the control lever side as urgent exit and please don’t get on or off the machine from
it.
zNever get into the operator cab from the ladder at the back of machine or get off from the
wheel at the side of operator cab.
zNever hold any tools or other items when climbing up and down the loader; lift the tools
needed to the operation flat roof by rope.
3.4 Fire Prevention
The following fluids are flammable and must be kept away from high heat and fire engine:
lubricant for loader engine, hydraulic oil for hydraulic system, hydraulic pressure shafting oil
and gear oil for transmission system, brake fluid and antifreeze fluid for heat elimination system.
Observe the following:
zKeep fire away from flammable fluids.
zAdd refueling and lubricating oil in well-ventilated
areas. Stop the engine and no smoking while
refueling.

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zTighten all fuel and oil tank caps firmly.
zPut the above flammable liquids in containers with relevant tags and put in a separate,
proper place for storage. Do not allow unauthorized people to use.
zElectric welding and flame cutting is not allowed for the tubes containing flammable fluid.
Clean the tubes with nonflammable fluid before electric welding and flame cutting.
zClean thoroughly the flammable materials such as sawdust, leaves and paper which collect
in the engine and brake clip, and clean the flammable oil, lubricating oil and other
substances on the machine.
zWhile operating, pay attention when the outlet of the muffler is close to flammable materials
such as withered grass and old papers.
zWhen parking the loader, carefully select the environment; especially select the places where
there are no flammable materials near the parts with a high temperature such as the muffler.
zCheck whether there is the leakage of fuel, lubricating oil, or hydraulic oil. If so, repair or
replace the broken items. Clean the repaired items
before use.
zIf there is explosive air generated near the storage
battery, be sure there is no flame or fire nearby.
Repair, maintain and use the storage battery as
referenced in users manual.
zDo not use flame or fire (match or lighter) to check
in a dark place.
zThe fire extinguisher should be ready for use at all
times and the user must be knowledgable about its use and function. Check and maintain it
as referenced in users manual.
zNever operate machine near flame or fire.
zDo not short circuit.
3.5 Precautions When Operating at High Temperature
zJust after turning off the engine, the coolant, engine oil and hydraulic oil are at high
temperature and still under high pressure. The attempt to remove the cap, drain the oil or
water, or replace filters may lead to serious burns.
Always wait for the temperature to go down, and
follow the specified procedures when performing
these operations.
zStop the engine, wait for the water to become cool,
and then loosen the cap slowly to relieve the inner

Operation & Maintenance Manual──LG946L Wheel Loader
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pressure before removing the cap of radiator.
3.6 Road Driving
zPay attention to the stability of the front and rear of the machine during operation, since
work equipment may block vision at the front while the load is concentrated on the back
wheels.
zBe sure there is no fog, soot, sand or dust cloud that may block vision.
zExamine the working area and the road condition.
Check whether there are holes, blockages, slosh or
ice.
zUnderstand the objective of the operation; be sure
to understand the meaning of the flags, signals, and
labels before the operation begins.
3.7 Prevent Crushing or Cutting Body Parts
zDo not put your hand, arm or other parts of your
body into movable parts of equipment. If the
working equipment is in operation, the clearance
will change and this may lead to serious damage or
personal injury when standing too close. The
engine must be turned off and the working
equipment must be locked if people have to work
between the moving components.
zMake sure the supporter and the accessories are
correctly set when some one works under the
machine. Do not use the hydraulic tank as support.
The accessories may go down and result in an
accident when the control system moves or the
hydraulic tubes leaks.
zNever do any adjustments when the machine is
operating or the engine is working unless there is
an outstanding reason, such as an emergency.
zStay far away from any rotating and moving parts.
zMake sure there is no sundry on the vane of engine. Vane could shoot off or cut off the

Operation & Maintenance Manual──LG946L Wheel Loader
15
sundry, tools inside.
zDo not try to check or maintain a working engine because it is dangerous.
3.8 Notice of Attachment
zPlease read the user manual for all of the attachments and the contents in the manual that
refers to an attachment when the attachment is being assembled and used.
zDo not use attachments that are not sold by Shandong Lingong Construction Machinery Co.
Ltd or the sellers specified by Shandong Lingong Construction Machinery Co. Ltd. Using
unauthorized attachments may cause safety problems and go against the normal operation of
the machine, which can influence the service life of the machine.
zShandong Lingong Construction Machinery Co. Ltd assumes no responsibility for any injury,
accident, or destruction of the machine induced by using unauthorized attachments.
3.9 Notes when using FOPS&ROPS cab(Falling Object Protective
Structuresabd and Roll Over Protection Structure)（Optioal）
Installing FOPS&ROPS is to protect the workmen in order to prevent the falling objects and the
roll over of the machine. ROPS can not only bear the load when the machine rolls over, but also
aborb the impact energy.Notice when using it:
zIf something is falling or the machine is damaged by the roll over,its strength will be
impaired,which will not meet the requirement of abnormal protective functions.In case that
this circumstance happens,contact with the dealers authorized by SDLG for the repair
method.
zEven though ROPS is installed，the effective protection can be ensured only if the operators
wear the seat belts. Wear the safety belt when operating the machine.Even though there is no
abnormity，replace the seat belt every 3 years.
zIt is prohibited to drill,weld in ROPS，in order to avoid damaging or lowing the strength of
ROPS.
4. STARTING SAFELY
4.1 Before Starting Engine
4.1.1 Safety Operation at Working Area
zBefore starting operations, thoroughly inspect the area for any unusual conditions that could

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be dangerous.
zExamine the condition of the ground and the quality of the soil in the work area, and
determine the proper method of operation. Before starting work, the ground should be
planed and pressed firmly. If there is a lot of sand and dust, sprinkle with water first.
zWhen working on public roads, there should be a trained person managing the traffic. Erect
the barricades and use the sign of DON’T ENTER to ensure safety of passing traffic and
pedestrians.
zIn the places where objects are buried such as water pipes, gas pipes, or high-voltage cables,
contact the responsible companies to confirm the position of the buried objects and take care
not to damage them during operations.
zWhen working in water, swampland or passing a sand bank, check the ground conditions,
speed and depth of the water. Be sure not to exceed the permitted water depth. After working,
check and clean the positions where lubricant is needed. Please refer to CHAPTER II–6
CIRCUMSTANCES REQUIREMENT for the depth of water for passage.
zBe sure there are good ventilation conditions when working in a closed environment.
4.1.2 Check before Starting the Engine
zCheck the machine carefully before starting work. Report to the manager if there is any
abnormal condition. Operate only after the abnormal conditions are resolved.
zTo avoid fire, check whether there are any flammable materials such as wood chips, leaves
and paper which have accumulated on the engine.
zCheck whether there is leakage of oil, or water, loose nuts, abnormal sounds, broken or lost
parts.
zCheck the cab floor, rearview mirror, control lever (or control handle), pedal and handrails
for oil, grease, snow or dirt, and clean.
zCheck the level of coolant, fuel and make sure the level of engine oil in the pan is normal.
Please refer to CHAPTER III – 3.6 Supply of Oils, to check whether the air filter is
blocked.
zAdjust the operator’s seat to the proper position for operation. Please refer to CHAPTER
III – 1.2.9 Seat Adjustment,to check whether the safety belt and the fixed equipment
(if assembled) are broken. The safety belt must be replaced with a new one
every three years.
zCheck the gauges for damage, and make sure the control lever (or control handle) is in the
braking position.

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zClean the dirt on the cab window and all the lamps to ensure better visibility.
zAdjust the rear-view mirror and keep the surface clean to ensure the best view from the
operator’s seat. Replace with a new one if the mirror has been damaged.
zDon’t leave any tool or part around the operator’s seat. They may fall because of the
vibration during moving and working, which could break the control lever (or control handle)
or switch, or move the control lever (or control handle) which could start the working
equipment and cause an accident.
zCheck whether the floodlight and signal light is normal and repair if not.
zCheck whether the front and rear frames is unlocked.
zClean oil from the handrail and the pedal and the silt and sand from the shoes to avoid
slippage, which may affect the operations.
zCheck whether the tires are worn or broken, the bolts and nuts are loose. Especially pay
attention to the loose hub nut and repair or replace for any abnormal situations.
4.1.3 When Starting the Engine
zBefore boarding on the machine, check the machine
again to see whether there are people or blockages on
or under or near the machine. If there are unrelated
people in the working area, ask them to leave. Do not
begin work until they leave.
zDon’t start the machine if there is the tag of “NO
OPERATION” on the control handle of the working
equipment or shift control handle.
z
zSit with the safety belt locked into place (if assembled).
zKnow the meanings for all the warnings on the equipment,
meters, and control equipment on the panel.
zBe sure the brake valve manual control handle (or the parking brake switch) is at the braking
position and all the control equipment are in the neutral position.
zSound the horn for warning.
zStart the engine. Please refer to CHAPTER III – 3.2.2 Starting of Engine.
zOnly start the engine in the cab. Do not start the engine by short circuit. It may destroy the