LGMG MT86H User manual
OperationandMaintenanceManual
MT86H
Off‐HighwayDumpTruck
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.
LINGONGGROUPJINANHEAVYMACHINERYCO.,LTD
MT86HOff‐HighwayDumpTruckOperationandMaintenanceManual
880*1230mmsextodecimo8printedsheet
3rdeditionandprintedforthefirsttimeinMay2018
LINGONGGROUPJINANHEAVYMACHINERYCO.,LTD
Add:F12,Building3LushangGuoaoPlaza,9777JingshiRoad,LixiaDistrict,Jinan,Shandong,
250000,China
Tel:86‐0531‐81663345Technicalservice:86‐0531‐81666372
Fax:86‐0531‐81666853 Accessorysales:86‐0531‐67605016
Web:www.lgmg.com.cn
MT86HOperationandMaintenanceManual
I
Contents
Foreword ....................................................................................................................IV
Chapter I Safety...........................................................................................................1
1.1 Basic precautions...............................................................................................3
1.2 Operation precautions........................................................................................4
1.3 Other precautions ..............................................................................................5
1.4 Notices&signs and their pasting positions........................................................6
Chapter II Product Introduction ............................................................................. 11
2.1 Outline and component name..........................................................................13
2.2 Outline dimension ...........................................................................................13
2.3 Application ......................................................................................................14
2.4 Work Environment Requirement.....................................................................14
2.5 Vehicle parameters...........................................................................................14
Chapter III Operation...............................................................................................17
3.1 Door operation.................................................................................................19
3.2 Cab interior device ..........................................................................................21
3.3 Cab exterior devices........................................................................................31
3.4 Cab suspension................................................................................................34
3.5 Cab tilting........................................................................................................35
3.6 Preparation before driving...............................................................................37
3.7 Start-up and gearshift ......................................................................................46
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3.8 Operation at low temperature environment.....................................................49
3.9 Wheel replacement and tire pressure ..............................................................51
3.10 Running-in of new vehicle............................................................................53
Chapter IV Operation and Maintenance of Main Assemblies...........................55
4.1 Operation and maintenance of engine.............................................................57
4.2 Operation and maintenance of intake system..................................................60
4.3 Operation and maintenance of clutch control system.....................................63
4.4 Operation and maintenance of transmission...................................................74
4.5 Operation and maintenance of front axle........................................................82
4.6 Operation and maintenance of suspension system..........................................92
4.7 Operation and maintenance of steering system.............................................103
4.8 Operation and maintenance of brake system ................................................ 111
4.9 Operation and maintenance of A/C...............................................................125
Chapter V Maintenance..........................................................................................135
5.1 Mileage for routine inspection & maintenance interval................................137
5.2 Details on mandatory maintenance of MT86 mining off-highway off-highway
dump truck...........................................................................................................137
5.3 Key points of maintenance............................................................................139
Chapter VI Annex....................................................................................................153
6.1 List of bulbs...................................................................................................154
6.2 List of quick-wear parts of electrical system ................................................154
6.3 Schematic diagram of brake..........................................................................155
MT86HOperationandMaintenanceManual
III
6.4 Principle of hydraulic system........................................................................156
6.5 Schematic diagram of electrical system........................................................157
MT86HOperationandMaintenanceManual
IV
Foreword
Thanks for choosing mining dump trucks manufactured by Lingong Group Jinan Heavy
Machinery CO., LTD., Ltd. This manual describes the mechanism, driving and operating,
maintenance and adjustment, technical parameters and service/adjustment data of the MT86H series
mining dump trucks.
Maximizing the profits from your Off-Highway 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 MT 86H 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.
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., Ltd. Reproduction or reprinting without written permission by LGMG is prohibited.
MT86HOperationandMaintenanceManual
V
△
!
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.
MT86HOperationandMaintenanceManual
VI
SafetyAttentions
Operatorsshouldunderstandandfollowprevailingnationalandlocalsafetyregulations.Incaseof
norelevantnationalorlocalregulation,safetyattentionsinthismanualwillbeapplicable.
Mostaccidentsarecausedbyfailureoffollowingregulationsonmachineoperationand
maintenance.Toavoidaccident,pleaseread,understandandfollowallwarningrequirementand
notesinthemanualandonthemachinebeforeoperationandmaintenance.
DetailsofsafetymeasuresareexplainedinChapterI"Safety".
Sinceitisunabletopredictallpossibledangers,therefore,safetyexplanationinthemanualandon
themachinemaynotincludeallsafetyprecautions.Incaseofusingstepsandoperationinthis
manual,itshouldbeguaranteedthatboththeoperatorandothersaresafeandtheoperation
wouldnotdamagethemachine.Iftheoperationsafetyisuncertain,pleaseconsultthecompany
ordealers.
Precautionarymeasuresonoperationandmaintenanceinthemanualareonlyapplicabletousing
themachineasspecifiedpurposes.Ifthemachineisusedbeyondtherangelistedinthemanual,
ourcompanywillbearnoliabilities.Allsafetyliabilitiesofsuchoperationshouldbebornebythe
userandoperator.
Operationprohibitedinthemanualshouldnotbeexecutedinanycircumstance.
Cautionsignalsbelowareusedtoindentifysafetyinformationinthemanual.
△
! 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.
MT86HOperationandMaintenanceManual
1
ChapterISafety
MT86HOperationandMaintenanceManual
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MT86HOperationandMaintenanceManual
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Fig. 1-1
Fig. 1-2
Fig. 1-3
1.1 Basic precautions
The off-highway 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 described in 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 danger
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
MT86HOperationandMaintenanceManual
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Fig. 1-4
Fig. 1-5
Fig. 1-6
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 for fear 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 off-highway dump truck
directly, and please get 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 is applied;
●The transmission is set to NEUTRAL position;
●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 on a slope, pay attention to the
change of the truck’s center of gravity.
MT86HOperationandMaintenanceManual
5
Fig. 1-7
Fig. 1-8
Fig. 1-9
△
! When driving the truck under full
load on a slope:
● Do not brake the truck abruptly when
driving downhill;
● Never disengage the clutch or coast
the truck at neutral gear when driving
downhill;
● Do not make a sharp turn.
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 the
Company may lead to an accident, and users
shall contact with the Marketing Dept. of the
Company in advance. The Company assumes no
liability for the casualties and damages incurred
therefrom.
2) When lifting the cargo body to repair the
components beneath, the stay bar of the cargo
body should be set to a safe position for support,
and restored once the repair is finished.
3) Always inspect the tyre from the side and never
stay before or behind the rotating tyre.
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4) Repair and replacement of tyre shall be done
by the specialized personnel as it is highly risky.
5) Be careful when doing welding around the tyre,
to avoid accidents due to tyre explosion.
6) When welding the truck for repair, always turn
off its master power switch. Do not perform
electric welding or flame cutting to the pipeline
containing flammable liquid. Make sure to clean
with non-inflammable liquid before such
operations.
7) Always lower the cargo body to the subframe
before leaving the truck unattended, and check
that the lifting control lever is in the center, the
parking brake is applied and the transmission
control lever is set to the NEUTRAL position, and
then shut down the engine.
1.4 Notices&signs and their pasting
positions
1) Engine repair Caution: beneath the cab
instrument panel.
MT86HOperationandMaintenanceManual
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2) Hydraulic oil mark: at hydraulic oil tank.
3) Fuel tank filling notice and sign: at fuel tank.
4) Lifting notice & sign: at the underpart of the
hydro-cylinder support.
5) “No treading” sign: on battery box and fuel
tank.
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6) “High temperature” sign: near the muffler.
7) “Working safety” signs: at front end and in the
middle of the cargo body.
8) Buffer tank operation Caution: beside the
buffer tank.
9) Air reservoir Caution: at the external wall of the
air reservoir.
10) Travelling Caution: at the left upper corner of
front windshield. （LHD）
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11) Travelling Caution:（1）：at the front part
windshield.
12) Travelling Caution:（2）：at the front part
windshield.
13) hydro-cylinder notice：at the right front side of
the seat in cab.
14) Parking brake handle valve notice：at the left
front part of the Parking brake handle valve.
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MT86HOperationandMaintenanceManual
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ChapterIIProductIntroduction
MT86HOperationandMaintenanceManual
12
Table of contents
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