LGMG MT86 User manual

Operation and Maintenance Manual
MT86
Off-Highway Dump Truck
△
!WARNING
Before operation and maintenance, the
drivers and service personnel shall always
read and get understanding of the manual.
Otherwise, fatal accident may occur. This
manual shall be kept properly for future
reference by the personnel concerned.
LINGONG GROUP JINAN HEAVY MACHINERY CO., LTD

MT86 Off-Highway Dump Truck Operation and Maintenance Manual
880*1230 mm sextodecimo 8 printed sheet
2st edition and printed for the first time in April 2018
LINGONG GROUP JINAN HEAVY MACHINERY CO., LTD
Add: F12,Building 3 LushangGuoao Plaza, 9777 Jingshi Road,Lixia District,Jinan, Shandong,
250000,China
Tel: [phone] Technical service: 86-0531-81666372
Fax: [phone] Accessory sales: 86-0531-67605016
Web: www.lgmg.com.cn

MT86 Operation and Maintenance Manual
I
Contents
Contents.....................................................................................................................................................................I
Foreword ...................................................................................................................................................................I
Safety Attentions...................................................................................................................................................II
Chapter I Safety....................................................................................................................................................... 1
1.1 Basic precautions................................................................................................................................................. 3
1.2 Operation precautions.......................................................................................................................................... 3
1.3 Other precautions................................................................................................................................................. 4
1.4 Notices&signs and their pasting positions........................................................................................................... 5
Chapter II Product Introduction............................................................................................................................ 9
2.1 Outline and component name.............................................................................................................................11
2.2 Outline dimension...............................................................................................................................................11
2.3 Application......................................................................................................................................................... 12
2.4 Work Environment Requirement....................................................................................................................... 12
2.5 Vehicle parameters............................................................................................................................................. 13
Chapter III Operation........................................................................................................................................... 17
3.1 Door operation................................................................................................................................................... 19
3.2 Cab interior device............................................................................................................................................. 20
3.3 Cab exterior devices .......................................................................................................................................... 30
3.4 Cab suspension.................................................................................................................................................. 31
3.5 Cab tilting.......................................................................................................................................................... 31
3.6 Preparation before driving................................................................................................................................. 33
3.7 Start-up and gearshift......................................................................................................................................... 39
3.8 Operation at low temperature environment....................................................................................................... 41
3.9 Wheel replacement and tire pressure................................................................................................................. 43
3.10 Running-in of new vehicle............................................................................................................................... 43
Chapter IV Operation and Maintenance of Main Assemblies ....................................................................... 45

MT86 Operation and Maintenance Manual
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4.1 Operation and maintenance of engine ....................................................................................................... 47
4.2 Operation and maintenance of intake system ............................................................................................ 51
4.3Transmission use and maintenance............................................................................................................. 54
4.4 Operation and maintenance of front axle................................................................................................... 78
4.6 Operation and maintenance of suspension system..................................................................................... 85
4.7 Operation and maintenance of steering system ....................................................................................... 102
4.8 Operation and maintenance of brake system............................................................................................110
4.9 Operation and maintenance ofA/C.......................................................................................................... 123
Chapter V Maintenance...................................................................................................................................... 133
5.1 Mileage for routine inspection & maintenance interval........................................................................... 135
5.2 Details on mandatory maintenance of MT86 mining dump truck........................................................... 135
5.3 Key points of maintenance ...................................................................................................................... 136
5.4 Lubrication of chassis.............................................................................................................................. 148
Chapter VI Annex ............................................................................................................................................... 151
6.1 Schematic diagram of brake .................................................................................................................... 153
6.2Hydraulic system schematic diagram....................................................................................................... 154
6.3 Engine Diagnostic Code.......................................................................................................................... 155

MT86 Operation and Maintenance Manual
I
Foreword
Thanks for choosing Off-Highway Dump Truck manufactured by Lingong Group Jinan Heavy
Machinery Co., Ltd.This manual describes the mechanism, driving and operating, maintenance and
adjustment, technical parameters and service/adjustment data of the MT86 series Off-Highway Dump
Truck.
Maximizing the profits from your dump truck is our common goal, which is to a large extent dependent on
your familiarity with the truck and a careful and thorough maintenance. We sincerely hope that you can
read through the manual prior to the first start, operation as well as maintenance and service of the truck
and get full understanding of the operations and maintenances described herein.
All the pictures and descriptions covered herein are correct at time of publication; but the structures and
performances of our products are constantly improved and perfected; therefore, please understand that
the related design, operation and maintenance instructions are subject to change at any time without
prior notice. For the latest information on the dump truck or in case of any doubts about this manual,
please consult LGMG.
This manual is applicable for MT86 series Off-Highway Dump Truck (standard configuration). Users
shall be in strict accordance with the mileage or time interval in the maintenance schedule to do
maintenance to the assembly and the dump truck.
For operation, service and maintenance of the engine, see details in Operation and Maintenance
Instructions of Engine and User Service Guide.
For operation, service and maintenance of the hydraulic lifting system, see details in Operation and
Maintenance Guidelines of Hydraulic Lifting System.
The manual should be always put in the cab or other specified places to be convenient for reading from
time to time. The manual is a part of the dump truck and thus shall be handed over together when
transferring the ownership or the right of the truck. If the manual is lost, damaged or hard to be
recognized, please replace it in time.
The copyright of this manual is reserved by Lingong Group Jinan Heavy Machinery Co., Ltd.
Reproduction or reprinting without written permission by LGMG is prohibited.
△
!WARNING
Only the specially trained personnel with corresponding qualifications are allowed to operate and
maintain the truck.
Incorrect operation, maintenance and repair are dangerous, and may lead to personal injury.
Before operation, maintenance or repair, the operator shall carefully read this manual.
Loading should be done in strict accordance with the rated loading capacity, and any consequences
due to overloading or unauthorized modification shall be the responsibility of the users.
The operating procedures and precautions referred to herein are only applicable to the stipulated
operation of the machine. For any operations out of the specification but not prohibited, always
make sure that this operation will not hurt you or other people.

MT86 Operation and Maintenance Manual
II
Safety Attentions
Operators should understand and follow prevailing national and local safety regulations. In case of no
relevant national or local regulation, safety attentions in this manual will be applicable.
Most accidents are caused by failure of following regulations on machine operation and maintenance. To
avoid accident, please read, understand and follow all warning requirement and notes in the manual and
on the machine before operation and maintenance.
Details of safety measures are explained in Chapter I "Safety".
Since it is unable to predict all possible dangers, therefore, safety explanation in the manual and on the
machine may not include all safety precautions. In case of using steps and operation in this manual, it
should be guaranteed that both the operator and others are safe and the operation would not damage
the machine. If the operation safety is uncertain, please consult the company or dealers.
Precautionary measures on operation and maintenance in the manual are only applicable to using the
machine as specified purposes. If the machine is used beyond the range listed in the manual, our
company will bear no liabilities. All safety liabilities of such operation should be borne by the user and
operator.
Operation prohibited in the manual should not be executed in any circumstance.
Caution signals below are used to indentify safety information in the manual.
△
! DANGER - If the situation classified as “DANGER”is not avoided, serious
injury or casualties is likely to occur. This word can also be used when the machine
may be seriously damaged if the possible hazard is not avoided.
△
! WARNING - If the situation to be warned is not avoided, serious injury or
casualties may occur. This word can also be used when the machine may be seriously
damaged if the potential hazard is not avoided.
△
! CAUTION –If the situation to be noticed is not avoided, minor or moderate
injury may occur. This word is also used when the machine may be damaged or the
service life shortened if the potential hazard is not avoided.

MT86 Operation and Maintenance Manual
1
Chapter I Safety

MT86 Operation and Maintenance Manual
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MT86 Operation and Maintenance Manual
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Fig.1-1
Fig.1-2
Fig.1-3
1.1 Basic precautions
The dump truck described here is a kind of mining
engineering machinery, which has quite different structure
and working properties compared to ordinary vehicles;
therefore, the safety precautions and operation instructions
involved herein this manual shall be followed prior to the
operation.
1) While working together with other operators or site traffic
commander, make sure that all personnel concerned
understand the hand signals.
2) Always do inspection before or after the operation, so as
to eliminate the potential dangers such as leakage of oil,
water and air, bolt looseness, unusual noise or other hazards
that could cause faults and serious accidents.
3) Never enter or stretch your hands between the moving
components, and avoid any rotating and moving parts. Do
not enter between the cargo body and the frame when the
cargo body is lowering.
4) Always park the truck on a level ground; if you have to
park the truck on a slope, wedge it with cushion blocks. In
this case, please stop the truck with foot brake, set the
transmission control lever to NEUTRAL or REVERSE
position, apply the hand brake, lower down the cargo body,
shut down the engine and remove the key.
5) Do not place the inflammables and explosives near the hot
parts like turbocharger, exhaust pipe, muffler and radiator in
case of fire or other accidents. Before touching the above
parts, make sure that those parts are cooled down to avoid
scald.
1.2 Operation precautions
1) Do not jump up/off the dump truck directly, and please get

MT86 Operation and Maintenance Manual
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Fig.1-4
Fig.1-5
Fig.1-6
Fig.1-7
on/off the truck by the ladder or grip only.
Getting on/off the running truck is prohibited.
2) During normal running, such dangerous driving behaviors
as sudden braking, fast travelling, sharp turning at a high
speed or driving in a zigzag are not allowed.
3) Before starting the truck, always inspect if the followings
have been done:
●The parking brake handle is applied;
●The transmission is set to NEUTRALposition;
●The PTO is disengaged.
4) When the truck is working, the operator shall sit in
driver’s seat to do all operations. Operating or driving in
other places than the driver’s seat is prohibited.
5) When driving downhill or uphill, pay attention to the
change of the truck’s center of gravity.
When driving downhill or uphill with full load:
●Do not make abrupt braking downhill;
●Never disengage the clutch or coast downhill;
●Do not make a sharp turning.
6) When the truck starts running, the cargo body is tiltable;
thus irrelevant personnel wandering around the truck is
dangerous and shall be prohibited.
1.3 Other precautions
1) Unauthorized modification is not allowed. Any
modification without permission from LGMG may lead to an
accident, and users shall contact with the Marketing Dept. of
LGMG previously. LGMG assumes no liability for the
casualties and damages incurred therefrom.
2) When lifting the cargo body to service the components