UD Trucks QUESTER Series User manual

OWNER’S MANUAL
QUESTER Series
Keep with vehicle at all times
UD Trucks Corporation

The name Quester means searcher and Quester is truly a truck for searchers of new fresh experiences and business
opportunities.
Truck operators today face challenges of increasing fuel prices, environmental legislation and challenging road
conditions. Ultimately, the real winners are the ones who keep on running. Like a long distance runner: consistently
and reliably, mile after mile, year after year. Quester delivers what transport companies around the globe and drivers
are looking for: an affordable real heavy-duty truck that combines first-class fuel efficiency with reliable durability.
Quester is UD Trucks most cost-efficient truck ever. Not only when you buy it, but also when you drive it.

FOREWORD
Congratulations on your wise decision to be the proud owner of a Quester, enabling you to reach the extra mile. This
truck is delivered to you with confidence which is produced using the latest technology and strict quality control during
production and delivery.
Before driving your truck, please read through the Owner's manual before you drive the truck for the first time. This
will ensure you to familiarise the controls and maintenance procedures, assisting you in the safe operation providing
room for efficient driving of the vehicle. However the safety devices installed in the vehicle and the information
provided does not form a replacement for careful driving with care and common sense, the driver or user is totally
responsible for the safety of self, vehicle and road, failing which UD Trucks cannot be held responsible in any
manner.
It is strongly recommended to use UD Genuine Parts and carry out all the periodic maintenance, service, repair at an
UD Trucks authorised dealer to prolong life of the vehicle and reduce maintenance cost. In order to retain the safety,
reliability and long life of the vehicle UD Trucks recommends you to heed our advice regarding the driving and care
of your vehicle. For all your queries on service, maintenance, use of genuine spares, oils, fluids, procedures, contact
your nearest UD Trucks authorised dealer.
All information, illustration, operations, maintenance, data provided in this manual is based on the latest model
available during the preparation and printing of this manual.As a part of continuous product optimisation, UD Trucks
reserves the right to change, modify, remove or add features in the vehicle and manual. This manual includes
information on all the options available in the truck for all models. Therefore you may find some information not
applicable for your models.
A separate warranty manual is provided along with this manual when purchasing the truck, explaining the warranty
and service details of your vehicle. The Owner’s manual and Warranty manual is an integral part of the vehicle that
forms a basic record of your vehicle which should be maintained and retained in a proper manner with the vehicle at
all times.

In the event of the vehicle being sold, please ensure that this manual is left in the vehicle for the reference of the new
owner.
This Quester is equipped with software systems which record various information about the vehicle (machine/engine)
and this information is transferred from the vehicle to UD Trucks and used by UD Trucks and its authorized dealers
in the product development process and for possible malfunction detection.

TABLE OF CONTENTS
1.INTRODUCTION AND SAFETY.................................... ......1.1
1.1 Introduction......... .......... .......................................... ......1.1
1.2 Vehicle identification.................................................... ......1.6
1.3 Before driving............................................................. ....1.10
1.4 Starting the engine..................................................... ....1.12
1.5 Vehicle speed limit ..................................................... ....1.13
1.6 Parking....................................................................... ....1.16
1.7 When there is a problem............................................ ....1.17
1.8 Cab tilting ................................................................... ....1.18
1.9 Overheating................................................................ ....1.19
1.10 Handling the fuel filter and fuel tank......................... ....1.20
1.11 Handling of the battery............................................. ....1.22
1.12 Other precautions .................................................... ....1.23
1.13 Modification and replacement .................................. ....1.24
1.14 Washing the vehicle................................................. ....1.26
1.15 OBD (On board diagnostics).................................... ....1.27
1.16 Driving trucks with Euro IV/China IV engines........... ....1.30
1.17 Telematics gateway.................................................. ....1.31
2.GETTING IN AND OUT OF THE CAB .. ................... ......2.1
2.1 When getting into the cab........................................... ......2.1
2.2 Doors.......................................................................... ......2.3
2.3 Seats.......................................................................... ......2.5
2.4 Seat belts ................................................................... ....2.11
2.5 Steering wheel adjust................................................. ....2.12
3. EQUIPMENT DESCRIPTION AND OPERATION........ .... 3.1
3.1 Instrumentation........................................................... .....3.1
3.2 Indicators .................................................................... .....3.5
3.3 Display menu............................................................... .....3.9
3.4 Switches...................................................................... ...3.15
3.5 Combination switch..................................................... ...3.22
3.6 Gear shift lever............................................................ ...3.27
3.7 PTO - If equipped........................................................ ...3.29
3.8 Fuel coaching system................................................. ...3.35
3.9 Fifth wheel operation................................................... ...3.38
3.10 Differential lock ......................................................... ...3.43
3.11 Bogie control - If equipped........................................ ...3.46
3.12 Coupling - If equipped............................................... ...3.48
3.13 Others....................................................................... ...3.50
4.ACCESSORIES AND AUDIO ....................................... .....4.1
4.1 Accessories................................................................. .....4.1
4.2 Audio front panel - if equipped.................................... .....4.4
4.3 Audio........................................................................... .....4.5
4.4 Radio........................................................................... .....4.6
4.5 USB player.................................................................. .....4.7
4.6 Setup........................................................................... .....4.8
4.7 Check before requesting service ................................ .....4.9

5. AIRCONDITIONING ..................................................... .....5.1
5.1 Ventilation................................................................... .....5.1
5.2 Air conditioner............................................................. .....5.3
6.DAILY INSPECTION ..................................................... .....6.1
6.1 Areas to inspect.......................................................... .....6.1
6.2 Inspection instructions ................................................ .....6.2
7.CORRECT DRIVING OPERATION............................... .....7.1
7.1 Correct driving operation............................................. .....7.1
7.2 Operation precautions................................................. .....7.3
7.3 Driving under special conditions................................. ...7.16
8.INSPECTION AND MAINTENANCE............................. .....8.1
8.1 Inspection and maintenance....................................... .....8.1
8.2 Air cleaner................................................................... .....8.4
8.3 Engine oil filter ............................................................ .....8.9
8.4 Fuel filter..................................................................... ...8.10
8.5 Air bleeding of fuel system.......................................... ...8.16
8.6 Battery......................................................................... ...8.17
8.7 Tyres........................................................................... ...8.18
8.8 Jack up........................................................................ ...8.27
8.9 Lights and fuses.......................................................... ...8.30
8.10 Mirror......................................................................... ...8.39
8.11 Coolant...................................................................... ...8.40
8.12 Brake......................................................................... ...8.43
8.13 Tools......................................................................... ...8.49
8.14 Oils............................................................................ ...8.50
8.15 Coupling.................................................................... ...8.59
8.16 Wiper blade............................................................... ...8.62
8.17 Washing the vehicle ................................................. ... 8.63
8.18 Handling of exhaust.................................................. ... 8.65
8.19 Fifth wheel................................................................ ... 8.68
8.20 Vehicle storage......................................................... ... 8.70
8.21 Greasing.........................................................................8.71
9.MAINTENANCE SCHEDULE....................................... ..... 9.1
9.1 Overview..................................................................... ..... 9.1
10.EMERGENCY PROCEDURES................................... ... 10.1
10.1 When there is problem ............................................. ... 10.1
10.2 Jump start................................................................. ... 10.5
11.SERVICE DATA.......................................................... ... 11.1
11.1 Maintenance standard.............................................. ... 11.1

When reading the manual
In this manual, read carefully those sections which have signs.
“DANGER”, “WARNING”, “CAUTION” and “NOTE”. These signs are particularly important.
The Owner's Manual contains information you need to operate and maintain your truck to the highest possible
standards. Follow the instructions and advice in this manual, Some of the equipment described in this manual is
optional and may not be included in your vehicle. If you have any questions, please consult your nearest UD Trucks
authorised dealer. The specifications and illustrations in this binder are not binding and UD Trucks reserve the right to
change them at any point of time without prior information.
DANGER Indicates a potentially dangerous situation that, unless avoided, will lead to death or serious
personal injury.
WARNING Indicates a potentially dangerous situation that, unless avoided, may lead to fatal injury, seri-
ous personal injury or damage to the product.
CAUTION Indicates a potentially dangerous situation that unless avoided may lead to minor or moderate
personal injury or damage to the product.
NOTE Indicates a situation, use or circumstance that should be emphasised.
×This symbol indicates a practice which is not recommended and should not be carried out.

The safety instructions provided in this manual are only a few of the vast and it unlimited in reality, hence it is the sole
responsibility of the user to check all possibilities on safety before handling the vehicle, driving, performing a
maintenance operation or service procedure. However the safety information provided in this manual does not form a
replacement for careful driving and operation with caution and common sense, the user is totally responsible for the
safety of self, vehicle and road, failing which UD Trucks cannot be held responsible in any manner.
This manual covers the feature for both LHD and RHD models. To enhance the understanding of the user, both LHD
and RHD illustrations are shown in a single topic. The illustration in the left side corresponds to the LHD vehicle and
right side corresponds to the RHD vehicle, until and otherwise mentioned.
LHD Vehicle RHD Vehicle
Topics common to both LHD and RHD are made available as a single illustration.
The illustrations shown in this manual are not contractual and may not reflect actual situation. If need of clarification
please consult your nearest UD Trucks authorised dealer.

1.INTRODUCTION AND SAFETY
1-1
1.INTRODUCTION AND SAFETY
1.1 Introduction
This manual provides detailed explanations for working with QUESTER series vehicles as below
Please read through and understand the Owner's manual before you drive the truck for the first time.
TRACTOR 4 X 2 6 X 2 6 X 4
RIGID 6 X 4 8 X 4
ENGINE GH11E

1.INTRODUCTION AND SAFETY
1-2
Abbreviations
ABS Anti-lock Brake System POC Power train Operating Condition
AC Air Condition PTO Power Take Off
ACM After treatment Control Module RES Resume
ADR European Agreement Concerning the International Carriage
of Dangerous Goods by Road RHD Right Hand Drive
CC Cruise Control RPM Revolutions Per Minute
ECU Electronic Control Unit RSL Road Speed Limit
EMEA Europe, Middle East and Africa SEA South East Asia
EMS Engine Management System SI International System of Units
EOL End Of Line TGW Telematics Gateway
FRS Function Requirement Specification VIN Vehicle Identification Number
GAW Gross Axle Weight
GCC Gulf Cooperation Council
GH11E 11 liter Engine
GVW Gross Vehicle Weight
HMI Human Machine Interface
HVAC Heating, Ventilating and Air Conditioning
IC Instrument Cluster
IECU Integrated Electronic Control Unit
ISO International Standardization Organization.
LHD Left Hand Drive
MIL Malfunction Indicator Lamp
NA Not Applicable
NOx NOx is a generic term for mono-nitrogen oxides NO and
NO2 (nitric oxide and nitrogen dioxide).
OBD On Board Diagnostics
PCB Program Control Board

1.INTRODUCTION AND SAFETY
1-3
For safe operation
The operation and points that require
caution during handling of the vehicle
for a trouble-free and worry-free use
of the vehicle has been listed here.
Read the informations before using
the vehicle.
Weights and measures
This manual uses SI units with their
respective metric system equivalents
in braces.
Fuel
The composition of fuel plays a vital
role in the function, service life and
emission of the engine. In order to
achieve specified levels of
performance with regard to power,
fuel economy and to fulfil emission
legislations. Use fuel that meets all
the legal requirements and also the
national and international standards.
These standards are the minimum
requirements for commercial fuel and
are frequently prepared in
consultation with the oil companies
and the automotive industry.
Examples are:
• GB 19147-2013
• EN590 (with nationally adapted
cold requirements)
• JIS KK 2204
These fuels perform better exhaust
emissions than standard fuels and
can therefore be recommended.
Water and particles
Make sure that water particles do not
enter the fuel tank and get mixed
with the fuel, entry of water particles
will corrode the fuel injection unit.
Water facilitates the growth of
bacteria and mould in the tank,
which will filter blockage. In cold
weather, water dispersed in the fuel
can freeze and block the fuel supply.
Check the fuel tank cap, fuel level
sensor mounting area for proper
sealing.
CAUTION
Pay attention to the different
labels on the vehicle for safety.
CAUTION
Use fuel that fulfil legal
requirements and national and
international standards. Failure
to comply will lead to damage
the engine and cause excessive
exhaust emission.
CAUTION
Petrol (gasoline) and alcohol
should never be mixed with
diesel fuel.
NOTE
The fuel injection unit should
not be adjusted to compensate
for any loss of power.

1.INTRODUCTION AND SAFETY
1-4
Diesel boosters
Many manufacturers of commercially
available additives (so called diesel
boosters) promise reduced fuel
consumption and improved lubricity,
although they do not have any
demonstrable effect whatsoever on
either fuel consumption or lubricity.
UD Trucks does not accept any
responsibility for warranty claims if
these additives have been used and
it is not UD Trucks policy to use,
test or evaluate these additives.
Fire extinguisher
The instructions for handling the fire
extinguisher (if equipped) are
described on the equipment itself.
The driver or user has to familiarise
the instructions for handling the fire
extinguisher to use it properly in an
emergency situation. Fire
extinguisher is located between the
passenger seat and the door on the
floor. The fire extinguisher must be
refilled immediately at an UD Trucks
authorised dealer after use, even if it
has not been completely discharged.
NOTE
It is not permissible to add any
kind of diesel boosters to the
fuel.
NOTE
Periodically check that the
pressure gauge needle is in the
green range. The vehicle owner
is responsible for maintaining
the fire extinguisher. To ensure
that it is always ready for use,
the vehicle owner must follow
the manufacturer’s instructions
printed on the fire extinguisher.

1.INTRODUCTION AND SAFETY
1-5
Warning triangle
The truck has warning triangle stored
in glove compartment box in high
roof cab’s and in the head console
for standard cab’s.
Roof hatch -If equipped
To open the roof hatch, push up the
latch handles. It can be opened from
one side (front or rear) or both sides
of the hatch at the same time. To
close it, just pull it back to its original
position.

1.INTRODUCTION AND SAFETY
1-6
1.2 Vehicle identification
Vehicle identification plate
Vehicle identification plate is located
just above the first step on the right
hand side of the truck, open the door
to view the vehicle identification
plate.
VIN Location
VIN number is punched on the
chassis frame front, on right hand
side.
VIN Plate SEA and EMEA
1: Type approval no. for SEA market and
chassis no. for EMEA market
2: VIN number
3: Technical maximum weight
4: Maximum technical axle load

1.INTRODUCTION AND SAFETY
1-7
VIN Plate Rigid - China
1: Vehicle model
2: VIN number
3: Technical maximum weight
4: Maximum technical axle load
5: Length width height
6:Year month
7: Technical maximum weight
8: Engine model
9: Engine rated power
VIN Plate Tractor - China
1: Vehicle model
2: VIN number
3: Engine maximum net power
4: The total mass
5: Maximum allowable takeoff weight
6: Year month
7: Maximum design load
8: Curb weight
9: Engine model
10: Engine rated power
VIN Plate Rigid - GCC
1: Vehicle manufacturer
2: Year month
3: GVW
4: GAW
5: This vehicle applicable to all Gulf/Saudi
6: Vehicle standards in effect up to the
date of
7: VIN
8: Category
9; Part number
10: Rear
11: Front

1.INTRODUCTION AND SAFETY
1-8
VIN Plate Tractor - GCC
1: Vehicle manufacturer
2: Year month
3: GVW
4: GAW
5: This vehicle applicable to all Gulf/Saudi
6: Vehicle standards in effect up to the
date of
7: VIN
8: Category
9; Part number
10: Rear
11: Front
Engine identification
1. Decal engine identification
2. Chassis no. and serial no.
3. Engine system data
4. Engine serial number
5. Engine block casting data
6. Manufacturing date
Transmission gearbox identifica-
tion plate location
6 Speed transmission gearbox
9 and 12 Speed transmission gearbox

1.INTRODUCTION AND SAFETY
1-9
Axle identification plate location
Solo axle
Tandem axle
Tandem axle, Hub reduction
Battery plate location
150 Ah
165 Ah and 180 Ah

1.INTRODUCTION AND SAFETY
1-10
1.3 Before driving
Getting in and out of the seat
When opening the door
Before opening the doors, check
both the front and sides of the
vehicle, open the door ensuring after
it is safe.
Seat position and steering wheel
position
Adjust the seat and steering wheel to
the correct driving position only when
the vehicle is stopped.
Do not hang accessories from the
windshield or other areas.
Do not place items on the instru-
ment cluster or the dashboard.
DANGER
Opening the door without
required care and caution is
dangerous and it could lead to
an accident.
WARNING
Do not adjust the seat or the
steering while driving. Failure
to comply can lead to
accidents.
WARNING
Do not hang accessories or
decorations from the
windshield or attach seals and
films to it. Doing so can block
the driver’s vision.
WARNING
Do not drive with loose items
placed on the instrument
cluster or the dashboard. These
tend to fall while driving and
distract the driver’s attention
can lead to an accident.

1.INTRODUCTION AND SAFETY
1-11
Wearing and adjusting the seat belt
Always wear the seat belt before
driving and the user should also
wear the seat belt.
Accelerator pedal and brake pedal Do not carry dangerous goods
Before starting the engine
Before starting the engine, shift the
transmission to the neutral position
and make sure that the parking
brake is applied.
WARNING
Do not fasten or remove the
seat belt while driving, it is very
dangerous.
WARNING
Do not place loose objects
such as tools, cans, bottles,
mats, etc on the cabin floor.
They can roll underneath the
pedals and prevent their
effective operation could lead
to accidents.
WARNING
Do not carry containers
containing dangerous
explosive, flammable goods in
the vehicle cab. This is
dangerous and could cause
serious fire hazards.

1.INTRODUCTION AND SAFETY
1-12
1.4 Starting the engine
Be cautious of exhaust gas Starting precautions
WARNING
Do not idle the vehicles in a
closed shed or under poor
ventilation, leading to inhalation
of harmful exhaust gases.
NOTE
• When starting the vehicle,
make sure that the area is free
from obstacles around the
vehicle.
• There are areas that cannot be
checked using the vehicle
mirrors. When stopping or
starting the vehicle be
conscious of the area around
the vehicle and ensure it is
safe.