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UD Trucks QUESTER Series Owner's Manual

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

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Summary of Contents for UD Trucks QUESTER Series

  • Page 1 OWNER’S MANUAL QUESTER Series Keep with vehicle at all times UD Trucks Corporation...
  • Page 2 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.
  • Page 3 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.
  • Page 4 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.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS 1.INTRODUCTION AND SAFETY..........1.1 3. EQUIPMENT DESCRIPTION AND OPERATION .... 3.1 1.1 Introduction ..............1.1 3.1 Instrumentation ..............3.1 1.2 Vehicle identification ............1.6 3.2 Indicators ................. 3.5 1.3 Before driving ..............1.10 3.3 Display menu...............

  • Page 6: Table Of Contents

    5. AIRCONDITIONING ............5.1 8.17 Washing the vehicle ............ 8.63 8.18 Handling of exhaust ............. 8.65 5.1 Ventilation ................ 5.1 8.19 Fifth wheel ..............8.68 5.2 Air conditioner ..............5.3 8.20 Vehicle storage ............8.70 6.DAILY INSPECTION .............
  • Page 7 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...
  • Page 8 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.

  • Page 9: Introduction And Safety

    1.INTRODUCTION AND SAFETY 1.INTRODUCTION AND SAFETY 1.1 Introduction This manual provides detailed explanations for working with QUESTER series vehicles as below TRACTOR 4 X 2 6 X 2 6 X 4 RIGID 6 X 4 8 X 4 ENGINE GH11E...
  • Page 10 1.INTRODUCTION AND SAFETY Abbreviations Anti-lock Brake System Power train Operating Condition Air Condition Power Take Off After treatment Control Module Resume European Agreement Concerning the International Carriage Right Hand Drive of Dangerous Goods by Road Cruise Control Revolutions Per Minute Electronic Control Unit Road Speed Limit EMEA...
  • Page 11 1.INTRODUCTION AND SAFETY For safe operation NOTE CAUTION The operation and points that require caution during handling of the vehicle The fuel injection unit should Petrol (gasoline) and alcohol for a trouble-free and worry-free use not be adjusted to compensate should never be mixed with of the vehicle has been listed here.
  • Page 12 UD Trucks it is not UD Trucks policy to use, authorised dealer after use, even if it test or evaluate these additives. has not been completely discharged.
  • Page 13 1.INTRODUCTION AND SAFETY Warning triangle Roof hatch -If equipped The truck has warning triangle stored To open the roof hatch, push up the in glove compartment box in high latch handles. It can be opened from roof cab’s and in the head console one side (front or rear) or both sides for standard cab’s.

  • Page 14: Vehicle Identification

    1.INTRODUCTION AND SAFETY 1.2 Vehicle identification Vehicle identification plate VIN Location VIN Plate SEA and EMEA Vehicle identification plate is located V I N n u m b e r i s p u n c h e d o n t h e 1: Type approval no.
  • Page 15 1.INTRODUCTION AND SAFETY VIN Plate Rigid - China VIN Plate Tractor - China VIN Plate Rigid - GCC 1: Vehicle model 1: Vehicle model 1: Vehicle manufacturer 2: VIN number 2: VIN number 2: Year month 3: Technical maximum weight 3: Engine maximum net power 3: GVW 4: Maximum technical axle load...
  • Page 16 1.INTRODUCTION AND SAFETY VIN Plate Tractor - GCC Engine identification Transmission gearbox identifica- tion plate location 1: Vehicle manufacturer 2: Year month 3: GVW 4: GAW 5: This vehicle applicable to all Gulf/Saudi 6 Speed transmission gearbox 6: Vehicle standards in effect up to the date of 7: VIN 8: Category...
  • Page 17 1.INTRODUCTION AND SAFETY Axle identification plate location Battery plate location Solo axle Tandem axle, Hub reduction 150 Ah Tandem axle 165 Ah and 180 Ah...

  • Page 18: Before Driving

    1.INTRODUCTION AND SAFETY 1.3 Before driving Getting in and out of the seat Seat position and steering wheel Do not place items on the instru- position ment cluster or the dashboard. When opening the door WARNING WARNING DANGER Do not adjust the seat or the Do not drive with loose items O p e n i n g t h e d o o r w i t h o u t steering while driving.
  • Page 19 1.INTRODUCTION AND SAFETY Wearing and adjusting the seat belt Accelerator pedal and brake pedal Do not carry dangerous goods Always wear the seat belt before WARNING driving and the user should also wear the seat belt. D o n o t c a r r y c o n t a i n e r s c o n t a i n i n g d a n g e r o u s WARNING...

  • Page 20: Starting The Engine

    1.INTRODUCTION AND SAFETY 1.4 Starting the engine Be cautious of exhaust gas Starting precautions NOTE • When starting the vehicle, make sure that the area is free from obstacles around the vehicle. • There are areas that cannot be c h e c k e d u s i n g t h e v e h i c l e mirrors.

  • Page 21: Vehicle Speed Limit

    Stop the 3. 90 km/hour vehicle immediately in a safe l o c a t i o n a n d c o n t a c t t h e 4. Without speed limiter nearest UD Trucks authorised dealer. 1-13...
  • Page 22 1.INTRODUCTION AND SAFETY Cruise control - If equipped Auxiliary brake Parking brake lever operation WARNING CAUTION WARNING Using cruise control does not Avoid having auxiliary brake D o n o t o p e r a t e t h e p a r k i n g a l l o w t h e d r i v e r t o s h i f t t h e c o n t i n u o u s l y a p p l i e d...
  • Page 23 1.INTRODUCTION AND SAFETY Do not use the bed while driving Air conditioner operation WARNING DANGER If the bed is used while driving, D o n o t s w i t c h o n t h e a i r t h e p e r s o n c o u l d b e t h r o w n conditioning system and sleep around during a collision or...

  • Page 24: Parking

    1.INTRODUCTION AND SAFETY 1.6 Parking When parking CAUTION Avoid parking the vehicle under trees to avoid bird droppings f a l l i n g o n t h e v e h i c l e , b i r d droppings are acidic and will cause the paint to wear out.

  • Page 25: When There Is A Problem

    . e n g i n e i s O F F. U s e o n l y t o w Contact the nearest UD Trucks truck to tow the vehicle.

  • Page 26: Cab Tilting

    1.INTRODUCTION AND SAFETY 1.8 Cab tilting Safety Check the following when tilting the • there is sufficient space in front WARNING o f t h e c a b a n d f r e e f r o m obstacles.

  • Page 27: Overheating

    1.INTRODUCTION AND SAFETY 1.9 Overheating When the vehicle overheats Handling the radiator cap Oil inspection and changes WARNING WARNING Do not fill coolant, when the D o n o t i n s p e c t , s u p p l y, o r engine is hot, to avoid burns change engine, transmission, from steam and hot coolant.

  • Page 28: Handling The Fuel Filter And Fuel Tank

    1.INTRODUCTION AND SAFETY 1.10 Handling the fuel filter and fuel tank When replacing the fuel filter Water draining of fuel filter Amount of fuel Try to fill fuel early in order to always WARNING keep the tank full. This prevents condensation from getting into the E n s u r e t h a t f u e l f i l t e r i s f u e l t a n k a n d t h e v e h i c l e f r o m...
  • Page 29 If eliminate static electricity. there is a fuel leak, contact nearest • Only 1 person should perform the UD Trucks authorised dealer for fueling. assistance. 1-21...

  • Page 30: Handling Of The Battery

    1.INTRODUCTION AND SAFETY 1.11 Handling of the battery When charging the battery Battery terminals In cold climates CAUTION CAUTION L o o s e o r c o r r o d e d b a t t e r y Leaving the battery discharged terminals will make it difficult to will make it easier for the battery...

  • Page 31: Other Precautions

    1.INTRODUCTION AND SAFETY 1.12 Other precautions Drive belt tension inspection When closing the windows WARNING Make sure that no body parts a r e e x t e n d e d o u t s i d e t h e w i n d o w w h i l e o p e r a t i n g t h e switch.

  • Page 32: Modification And Replacement

    Contact the nearest UD Trucks When performing electrical welding, authorised dealer for advice before the electric current of the welding installing any accessories.
  • Page 33 1.INTRODUCTION AND SAFETY Do not perform self wiring Replacement of fuses Replacement of lights WARNING n o t p e r f o r m a n y a u t h o r i s e d w i r i n g o r i n s t a l l electrical devices.

  • Page 34: Washing The Vehicle

    1.INTRODUCTION AND SAFETY 1.14 Washing the vehicle When washing the vehicle W h e n w a s h i n g t h e v e h i c l e ' s undercarriage, do not directly apply steam or water from a high pressure washer on the steering shaft joint, front axle drag link and tie rod dust covers.

  • Page 35: Obd (On Board Diagnostics)

    The monitoring system will inform Conditions the user through warning lamps UD Trucks uses SCR technology The NOx control monitoring system and fault messages. ( S e l e c t i v e C a t a l y t i c R e d u c t i o n ) i s a c t i v e u n d e r t h e f o l l o w i n g •...
  • Page 36 1.INTRODUCTION AND SAFETY Non-erasable fault codes (with the engine running) after the Fuel occurrence of the fault, for example The new fault codes for NOx once Sulphur-free fuel (<10 ppm) must be at the next red light. As soon as the the fault code is reported (becomes u s e d i n o r d e r t o e n s u r e t h a t t h e reason for the power reduction has...
  • Page 37 UD Trucks for refilling in UD Trucks with Euro IV/China IV engines. AdBlue can also be sold...
  • Page 38 MIL symbol. If the system AdBlue or interfere with the illumination. Contact UD Trucks detects that the fault persists then exhaust cleaning system. authorised dealer for assistance. the engine's output is reduced by 40% of maximum output.

  • Page 39: Telematics Gateway

    1.INTRODUCTION AND SAFETY 1.17 Telematics gateway Telematics gateway (if equipped) is GSM-communication a n o n - b o a r d u n i t u s e d f o r d a t a Te l e m a t i c s g a t e w a y h a s logging and communication between...
  • Page 40 THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY...

  • Page 41: Getting In And Out Of The Cab

    2.GETTING IN AND OUT OF THE CAB 2.GETTING IN AND OUT OF THE CAB 2.1 When getting into the cab 2. Hold the lower handles, climb 4. Hold upper handle climb the 3rd the1st step. step. WARNING • Ensure care when getting in and out of the cab, to avoid slip or fall.
  • Page 42 2.GETTING IN AND OUT OF THE CAB 6. Position comfortable When getting out driver ’s seat and release the When getting out, use the reverse grasp from the front upper handle. process followed while getting in. 7. Close the door.

  • Page 43: Doors

    2.GETTING IN AND OUT OF THE CAB 2.2 Doors Opening and closing the doors • When opening the door from the • When opening the door from out- inside, pull the handle inner and WARNING side, press the push button while push the door outwards.
  • Page 44 2.GETTING IN AND OUT OF THE CAB Locking and unlocking door. Locking and unlocking door from Insert the ignition key and turn it The door can be locked from inside outside towards the rear to lock the door and by pus hing t he lock knob t o lock To unlock the door from the out side turning it towards the front will unlock position.

  • Page 45: Seats

    2.GETTING IN AND OUT OF THE CAB 2.3 Seats Driver’s seat Mechanical suspension driver seat Backrest adjustment DANGER Do not adjust the seat while driving. NOTE Adjust the driver ’s seat to a position where all the switches 1: Backrest adjustment When the backrest recliner handle is and pedals can be operated 2: Seat tilt and height adjustment...
  • Page 46 2.GETTING IN AND OUT OF THE CAB Seat tilt and height adjustment Suspension height adjustment Longitudinal seat adjustment W h e n t h e f r o n t h a n d l e i s l i f t e d When the height adjuster is turned When the slide rail handle is pulled upwards, the seat cushion can be...
  • Page 47 2.GETTING IN AND OUT OF THE CAB Air suspension driver seat Backrest adjustment Seat tilt and height adjustment 1: Backrest adjustment When the backrest recliner handle is W h e n t h e f r o n t h a n d l e i s l i f t e d 2: Seat tilt and height adjustment 3: Suspension height adjustment r o t a t e d u p w a r d s , i t u n l o c k s t h e...
  • Page 48 2.GETTING IN AND OUT OF THE CAB Suspension height adjustment Longitudinal seat adjustment When the height adjuster is lifted When the slide rail handle is pulled upwards it inflates the air spring and upwards the tracks are unlocked, w h e n i t i s p u s h e d d o w n w a r d s i t a l l o w i n g t h e s e a t t o b e m o v e d deflates the air spring.
  • Page 49 2.GETTING IN AND OUT OF THE CAB Passenger seat Backrest adjustment Full fold down adjustment CAUTION D o n o t s i t o r s t a n d o n t h e p a s s e n g e r s e a t i n f o l d e d condition.
  • Page 50 2.GETTING IN AND OUT OF THE CAB Centre seat - If equipped DANGER Center seat should not be used when vehicle is moving. Center seating position designated f o r u s e o n l y w h e n t h e v e h i c l e i s stationary.

  • Page 51: Seat Belts

    Pull the belt out slowly. retracted position. • Replace the seat belt if it is damaged or found defective at UD Trucks authorised dealer. 2-11...

  • Page 52: Steering Wheel Adjust

    2.GETTING IN AND OUT OF THE CAB 2.5 Steering wheel adjust Adjustment method 3. The telescopic adjustment allows the steering wheel to be moved up or down. DANGER Do not adjust the steering wheel while driving it could lead to accident.

  • Page 53: Equipment Description And Operation

    3. EQUIPMENT DESCRIPTION AND OPERATION 3. EQUIPMENT DESCRIPTION AND OPERATION 3.1 Instrumentation Instrument panel and controls 1. Air outlet 2. Storage box 3. Radio 4. Control panel climate unit 5. Steering wheel 6. Horn 7. Accelerator pedal 8. Brake pedal 9.
  • Page 54 3. EQUIPMENT DESCRIPTION AND OPERATION Instrument cluster (IC) Left turn indicator - tractor/rigid The IC provides information to the user by using gauges, telltale lamps and a display. Left turn indicator trailer Check - Medium severity Dipped beam Stop - High severity Parking brake applied Info - Low severity Rear Fog lamp...
  • Page 55 3. EQUIPMENT DESCRIPTION AND OPERATION Instrument gauge Tachometer Speedometer The following gauges are included in CAUTION the instrument. • Tachometer Red zone indicates a range of • Speedometer critical engine speed. Always • Coolant temperature gauge keep the indicator below this •...
  • Page 56 3. EQUIPMENT DESCRIPTION AND OPERATION Coolant temperature gauge Fuel level gauge The purpose of the engine coolant The gauge shows the approximate temperature gauge is to display the amount of fuel in the tank. The meter engine coolant temperature. Engine functions when the starter key is in coolant temperature gauge has a the driving position.

  • Page 57: Indicators

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.2 Indicators The following telltale indicators are found in the instrument cluster Telltale Telltale Sl No. Description Sl No. Description Indicator Indicator Left turn light indicator - Tractor/Rigid Parking brake applied (Green) (Red) Left turn light indicator - Trailer INFO - Low severity (Green) (White)
  • Page 58 3. EQUIPMENT DESCRIPTION AND OPERATION Telltale Telltale Sl No. Description Sl No. Description Indicator Indicator Engine coolant level low Cab tilt (Red) (Red) Engine fault Engine oil pressure low (Yellow) (Red) Fog lamp front High beam (Green) (Blue) Engine pre-heat Front and rear position lamp (Yellow) (Green)
  • Page 59 3. EQUIPMENT DESCRIPTION AND OPERATION Telltale Telltale Sl No. Description Sl No. Description Indicator Indicator Fuel level low Engine coolant temperature high (Yellow) (Red) Gear shift lever in low range Brake air pressure high/low (Green) (Red) Differential lock between wheels engaged ABS fault on Trailer (Red) (Yellow)
  • Page 60 3. EQUIPMENT DESCRIPTION AND OPERATION Instrument, display The layout of the display Control and warning lamps If something occurs which demands The instrument has warning lamps t h e d r i v e r ’s a t t e n t i o n , a v e h i c l e and control lamps, to indicate status message is shown in the display.

  • Page 61: Display Menu

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.3 Display menu Display control interaction The display menu is controlled by two sorts of events. Driver action events: The user can control the display with the push buttons listed below. • Escape button (1) •...
  • Page 62 3. EQUIPMENT DESCRIPTION AND OPERATION Driving menu The driving menu has the following choices in the following order. Note: The above diagram describes the different menus Full menu or non-driving menu 3-10...
  • Page 63 3. EQUIPMENT DESCRIPTION AND OPERATION When the vehicle is stationary the full or non-driving menu can be accessed. Note: The above diagram describes the different menus. The ** in the figure above indicates that this shall be visible when set by EOL parameters. 3-11...
  • Page 64 3. EQUIPMENT DESCRIPTION AND OPERATION Driving Menu Adblue gauge It shall display only the gauges with menu counter, It shall not dis- Outdoor temperature play which gauge it is. For E.g. Gauge (1) Gauges Engine Oil Pressure Engine Oil Level Engine Hours Average fuel It shall display only the gauges with menu counter, It shall not dis-...
  • Page 65 3. EQUIPMENT DESCRIPTION AND OPERATION Below mentioned is the full menu or non-driving menu structure which also include driving menu. Full menu or Non-driving menu Telltale Indicator test Gauge test Self-test Display test Sound test Part Number IECU Diagnostics Parameter setting IECU Read Fault/Clear Faults IECU...
  • Page 66 3. EQUIPMENT DESCRIPTION AND OPERATION Full menu or Non-driving menu Workshop PW Driver PW Workshop: ENTER OLD PASSWORD ENTER NEW PASSWORD Password Change PW (after entering pass- Driver: ENTER OLD PASSWORD word) ENTER NEW PASSWORD Note: Default password for user is 1234, user can change the password after.

  • Page 67: Switches

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.4 Switches Switch position Description Switch position Description DRIVER ID for TGW Beacon light Horn selector Interior light (Only for high roof cab) Head lamp leveller Front fog lamp Engine PTO Rear fog lamp Transmission PTO Switch cover Bodybuilder -1 Differential lock (Interaxles)
  • Page 68 3. EQUIPMENT DESCRIPTION AND OPERATION 1.Driver ID for TGW - if equipped 3. Head lamp leveller switch 4. Engine PTO 2. Horn selector H e a d l a m p l e v e l i n g i s d o n e b y 5.
  • Page 69 3. EQUIPMENT DESCRIPTION AND OPERATION 6. ADR Switch - if equipped 7. Diff lock Interaxles and rear wheel 9. Working lamp 7. Diff lock Interaxles switch 8. Bogie lift/Bogie press switch 10. Beacon light switch - if equipped 3-17...
  • Page 70 3. EQUIPMENT DESCRIPTION AND OPERATION 11. Interior Light Switch 13. Rear fog lamp 15. 16. 17. Bodybuilder switch 12. Front fog lamp 14. and 18 Switch cover 3-18...
  • Page 71 3. EQUIPMENT DESCRIPTION AND OPERATION Mirror heating switch - if equipped The exterior rear view mirror heater is used to remove/ melt the frost on the rear view mirrors during cold/ snowy condition. Mirror heating push button is provided on the driver side window door control panel.
  • Page 72 3. EQUIPMENT DESCRIPTION AND OPERATION Fuse and relays Fuse and relay centre decal is placed inside the dashboard on passenger side of the cab 3-20...
  • Page 73 3. EQUIPMENT DESCRIPTION AND OPERATION 3-21...

  • Page 74: Combination Switch

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.5 Combination switch F o l l o w i n g a r e t y p e s combination switch. With cruise control and auxiliary brake 2 position With cruise control and auxiliary brake 3 position Without cruise control and auxiliary brake 2 position...
  • Page 75 3. EQUIPMENT DESCRIPTION AND OPERATION Washer function Wiper momentary active Hazard indicator 1. OFF Washer can be controlled through To a c t i v a t e h a z a r d i n d i c a t o r t h e 2.
  • Page 76 3. EQUIPMENT DESCRIPTION AND OPERATION Light control Flash to pass Direction indicator F l a s h ( t o p a s s ) l i g h t c a n b e Combination switch Light switch Combination position controlled by moving the combination Turn signal...
  • Page 77 3. EQUIPMENT DESCRIPTION AND OPERATION r e l e a s e d . I f t h e u s e r m o v e s t h e Cruise control operation Cruise control should be activated combination switch to the 2 and 4 after all the above said conditions position, the combination switch does are satisfied.
  • Page 78 Cruise control speed cannot be set above the defined maximum speed. Check with UD Trucks a u t h o r i s e d d e a l e r f o r t h e maximum speed limit.

  • Page 79: Gearshift Lever

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.6 Gearshift lever 6 Speed 9 Speed 12 Speed The 6 speed manual transmission The 9 speed manual transmission T h e s p e e d t r a n s m i s s i o n comprises of six forward gears and comprises of 8 forward gears, an comprises of split-range gears.
  • Page 80 3. EQUIPMENT DESCRIPTION AND OPERATION Range selection operation instruc- Range change preventive function. Overdrive gearbox- STO2009 and tions STO2012 - If equipped This safety feature prevents range R a n g e c h a n g e s a r e i n i t i a t e d a t c h a n g e f r o m h i g h t o l o w.

  • Page 81: Pto - If Equipped

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.7 PTO - if equipped PTO (Power Take Off) Engine mounted PTO NOTE Activate engine PTO The truck can be equipped with two types of PTO's, engine mounted PTO is disengaged when the 1. Apply the parking brake. PTO and gearbox or transmission engine is switched OFF.
  • Page 82 3. EQUIPMENT DESCRIPTION AND OPERATION Deactivate engine PTO Transmission PTO • Switch OFF the engine PTO Activate transmission PTO switch. 12 Speed NOTE Abrupt range switch with shift could result in disengaged gear rotation. If the gear rotation is disengaged, return to neutral 1.
  • Page 83 3. EQUIPMENT DESCRIPTION AND OPERATION Deactivate transmission PTO NOTE NOTE 12 speed 1. Press down the clutch pedal. Make sure parking brake is Make sure that gearshift lever 2. Shift gearshift lever to neutral. applied and the gearshift lever low indicator goes OFF and PTO 3.
  • Page 84 3. EQUIPMENT DESCRIPTION AND OPERATION Activate transmission PTO 2. Press clutch pedal and shift the 4. Switch ON the Transmission 9 speed g e a r s h i f t l e v e r t o n e u t r a l l o w PTO switch on the dashboard.
  • Page 85 3. EQUIPMENT DESCRIPTION AND OPERATION Deactivate transmission PTO NOTE NOTE 9 speed 1. Press down the clutch pedal Warning buzzer (alarm) sounds Tr a n s m i s s i o n P T O unless the parking brake is disengaged when the reverse 2.
  • Page 86 3. EQUIPMENT DESCRIPTION AND OPERATION Engine RPM control using combi- T h e R P M c o n t r o l t h r o u g h nation switch during PTO opera- c o m b i n a t i o n s w i t c h w i l l tion...

  • Page 87: Fuel Coaching System

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.8 Fuel coaching system Description The fuel coaching system guides the driver to operate in the best possible operating region of the engine. This is done to guide the driver through symbols displayed in the instrument cluster. The system will also help the driver to keep track of the driving behavior and driver’s performance over a defined period of time or trips logged, which the vehicle owner can extract later and analyze.
  • Page 88 3. EQUIPMENT DESCRIPTION AND OPERATION Fuel coaching data The engine is designed to allow the NOTE driver to stay within the sweet spot Fuel coaching data (1) is displayed d u r i n g m o s t n o r m a l o p e r a t i n g on the driver information display.
  • Page 89 3. EQUIPMENT DESCRIPTION AND OPERATION Sweet spot data logging 3-37...

  • Page 90: Fifth Wheel Operation

    T h e f i f t h w h e e l o p e r a t i o n i s Fifth wheel must be cleaned and applicable only for the truck tractor, lubricated. Quester series tractor can have any Tilt the ramps in downward condition. of the below two fifth wheels Make sure that the locks are open. If •...
  • Page 91 3. EQUIPMENT DESCRIPTION AND OPERATION Coupling procedure 1 . B r i n g t h e t r a c t o r c l o s e t o t h e Trailer should contact fifth wheel trailer. 100-150 mm behind the fifth wheel bracket pin.
  • Page 92 3. EQUIPMENT DESCRIPTION AND OPERATION There should be no gap (1) between Visually inspect the air connections the trailer and fifth wheel. and ensure that they are working WARNING fine and free from compressed air The coupling procedure is not leaks.
  • Page 93 3. EQUIPMENT DESCRIPTION AND OPERATION Check the clearance between the T h e s e m i t r a i l e r a n d t h e t r a c t o r Unlock the fifth wheel with release locking mechanism and the king pin vehicle must be on the same flat handle as follows.
  • Page 94 3. EQUIPMENT DESCRIPTION AND OPERATION 5. Hook handle notch unlock pin Disconnect the air hoses and the electric socket by returning them to their holders (using safety equipment which is suitable for this operation) release the tractor brake and slowly drive away from semitrailer.

  • Page 95: Differential Lock

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.10 Differential lock Information 2. Without applying differential lock 3. While driving slippery w h i l e d r i v i n g o n a s l i p p e r y surface deactivate the differential s u r f a c e t h e w h e e l o n t h e lock only when both wheels are...
  • Page 96 3. EQUIPMENT DESCRIPTION AND OPERATION Always unlock the differential lock as Differential lock interaxle switch Differential lock interaxle and rear soon as the vehicle emerges from wheels switch (only for RTH2611) s l i p p e r y s u r f a c e c o n d i t i o n s a n d CAUTION T h e d i f f e r e n t i a l...
  • Page 97 Stop the vehicle 1. Stop the vehicle. and contact nearest UD Trucks 2. Check that none of the wheels are a u t h o r i s e d d e a l e r f o r skidding.

  • Page 98: Bogie Control - If Equipped

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.11 Bogie control - if equipped Bogie control Different conditions can be achieved Normal condition b y p r e s s i n g t h e b o g i e l i f t s w i t c h Bogie lift assembly makes it possible Bogie lift switch in OFF condition.
  • Page 99 3. EQUIPMENT DESCRIPTION AND OPERATION Bogie press condition Bogie lift condition When the vehicle is fully loaded When the vehicle is in unladen or ( r a t e d l o a d ) a n d m o v i n g o n t h e partially laden condition (less than g r a d i e n t o r o n a s l i p p e r y r o a d the rated capacity of drive axle),...

  • Page 100: Coupling - If Equipped

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.12 Coupling - if equipped Hitching 4. Disengage brake on front axle of turntable drawbar trailer. WARNING NOTE 5. Slowly reverse tractor. After each hitching procedure, T h e r e l e v a n t n a t i o n a l When hitching a trailer it is essential to check that the...
  • Page 101 3. EQUIPMENT DESCRIPTION AND OPERATION Do not drive the tractor with the lock Closing the coupling manually control pin in extended condition. Move the tractor approximately 1 m WARNING and check again if the coupling is secured. Ensure care to avoid injury. 1.

  • Page 102: Others

    3. EQUIPMENT DESCRIPTION AND OPERATION 3.13 Others Horn Sun visor To sound the horn, push the center Sun visors are located on the interior pad area of the steering wheel. just above the windshield designed with a hinged flap that is adjustable to help shade the driver ’s and co- d r i v e r ’...
  • Page 103 3. EQUIPMENT DESCRIPTION AND OPERATION Engine protection The actions that can be taken by the system when engine protection is E n g i n e p r o t e c t i o n c o n t r o l s t h e activated are: functions used to protect the engine •...
  • Page 104 3. EQUIPMENT DESCRIPTION AND OPERATION Front panel opening 1. Pull the knob towards driver seat Front panel closing to release the front panel lock. 1. Lower the front panel slowly. The following items can be inspected by opening the front panel. •...

  • Page 105: Accessories And Audio

    4.ACCESSORIES AND AUDIO 4.ACCESSORIES AND AUDIO 4.1 Accessories Storage box 1. Storage box 2. Card holder 3. Door pocket 4. Ash box 5. Cup holder...
  • Page 106 4.ACCESSORIES AND AUDIO Head console (CAB-SLP) Card holder This can be used to hold toll tickets, WARNING c a r d s a s t e l e p h o n e c a r d s a n d Do not overload or place heavy highway card.
  • Page 107 4.ACCESSORIES AND AUDIO Door pocket Power outlet Ash box Door pockets are located in the right There is power outlet provided on Open the lid of the ash box to use it. and left doors. Place road maps, the dashboard for mobile charging Always close the lid after use.

  • Page 108: Audio Front Panel - If Equipped

    4.ACCESSORIES AND AUDIO 4.2 Audio front panel - if equipped PWR: Press: Mute/Power on 6. 5: Preset button 5 (tuner) 11.:BAND: Press: FM/AM player mode Press and hold (more than 2 sec): Power off D▼: Select next folder AST: Press and hold: Auto store ROTARY Volume switch 2.

  • Page 109: Audio

    4.ACCESSORIES AND AUDIO 4.3 Audio ON/OFF Press the power button to switch ON o r p r e s s a n d h o l d p o w e r b u t t o n ( m o r e t h a n 2 s e c o n d s ) t o s w i t c h OFF.

  • Page 110: Radio

    4.ACCESSORIES AND AUDIO 4.4 Radio Waveband A f t e r a b o u t 8 s e c o n d s w i t h o u t NOTE operation, system will return to auto Press BAND to select the desired searching mode.

  • Page 111: Usb Player

    4.ACCESSORIES AND AUDIO 4.5 USB player USB player Link external USB memory device Previous / next track Press ► or ◄ to select the next/ U S B m e m o r y d e v i c e c a n b e If the external USB memory device connected to the standard mini USB is linked correctly with the mini USB...

  • Page 112: Setup

    4.ACCESSORIES AND AUDIO 4.6 Setup Press ► or ◄ button to select one Modify the initial settings on the unit Press SET button for more than 2 according to the preference of the o f t h e o p t i o n s t h a t h a s t o b e seconds to leave the SETUP menu.

  • Page 113: Check Before Requesting Service

    4.ACCESSORIES AND AUDIO 4.7 Check before requesting service Sometimes if the user suspects that the radio is not working well, check the operating/installation instructions as per the following list to identify an apparent malfunction that can easily be rectified before calling for service. SYMPTOMS POSSIBLE CAUSE / REMEDY GENERAL...
  • Page 114 THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY...

  • Page 115: Airconditioning

    5. AIRCONDITIONING 5. AIRCONDITIONING 5.1 Ventilation Door window/Power window - If Opening and closing the window equipped driver side - If equipped The power window switch provided T h e d r i v e r ’s s i d e p o w e r w i n d o w o n t h e d r i v e r s i d e c o n s i s t s o f switch is used to open or close the c o n t r o l s t o o p e n a n d c l o s e t h e...
  • Page 116 5. AIRCONDITIONING Opening and closing of window- Opening and closing the passen- Manual ger’s side window The window opening/closing levers The passenger’s side power window are provided on inside of each door. s w i t c h ( 1 ) i s p r o v i d e d i n s i d e t h e p a s s e n g e r ’s d o o r s .

  • Page 117: Air Conditioner

    5. AIRCONDITIONING 5.2 Air conditioner Air vent 1. Air blowing to wind shield 2. Air blowing to upper body CAUTION 3. Air blowing to foot rest Do not switch ON the blower when the engine is switched OFF, it could drain the battery.
  • Page 118 5. AIRCONDITIONING Manual Air-Conditioner DANGER D o n o t s w i t c h o n t h e a i r conditioning system and sleep or stay for a prolonged time in t h e v e h i c l e w i t h w i n d o w s closed.
  • Page 119 5. AIRCONDITIONING Mechanical controlled HVAC-RHD 1. Temperature control knob 2. Fresh/recirculation switch 3. Blower knob Mechanical controlled HVAC-LHD 4. Cooler ON/OFF switch 5. Mode knob...
  • Page 120 5. AIRCONDITIONING Mechanical controlled only heater unit-RHD 1. Temperature control knob 2. Fresh/recirculation switch Mechanical controlled only heater unit-LHD 3. Blower knob 4. Mode knob...
  • Page 121 5. AIRCONDITIONING Mechanical controlled only AC unit-RHD/LHD 1. Mode knob 2. Fresh/recirculation switch 3. Blower knob 4. AC on Mode knob...
  • Page 122 1. Mode knob 2. Fresh/recirculation switch 3. Blower knob If the AC is not functioning properly contact nearest UD Trucks authorised dealer. NOTE Use Freon HFC134a to help protect the environment. Only use the specified refrigerant to charge the cooling system.

  • Page 123: Daily Inspection

    • The inspection items shown in bold are items that are conducted appropriately based on the vehicle's mileage, driving conditions, and other factors. • In addition, when trouble occurs, have the vehicle inspected and repaired at UD Trucks authorised dealer. 1.Have all the problems from the previous day been completely repaired? •...

  • Page 124: Inspection Instructions

    6.DAILY INSPECTION 6.2 Inspection instructions Tyre inflation pressure, cracks, damage and abnormal wearing For setting the correct tyre pressure R e f e r t y r e m a n u f a c t u r e r ' s DANGER recommendation Driving without the correct air...
  • Page 125 MAX and MIN mark of found, the vehicle should be placed Always check the engine oil the dipstick. out of service until the item can be level when the engine is cooled. repaired by UD Trucks authorised dealer.
  • Page 126 • If a large amount of water is drained out, there could be a problem with the air dryer, so have it inspected at UD Trucks authorised dealer immediately.
  • Page 127 6.DAILY INSPECTION Parking brake lever tension Windshield washer level and spray performance WARNING Do not use coolant as washer f l u i d . D o i n g s o c a n g r e a t l y impair windshield visibility and can cause an accident.
  • Page 128 6.DAILY INSPECTION Wind-shield washer fluid Engine starting performance and NOTE • Always windshield abnormal sounds washer fluid. The wind-shield • Do not replace the washer fluid Check if the engine starts quickly washer fluid is mixed with water w i t h s o a p w a t e r o r a n y and runs smoothly.
  • Page 129 6.DAILY INSPECTION Engine performance when run- Air charging performance Engine ning at low speed and when accel- Standard speed Air pressure time erating (Idling) Under 12 0→ 804 kPa With the engine warmed up, check if 600 rpm min. {0→ 8.04 bar} it continues to run smoothly while •...
  • Page 130 6.DAILY INSPECTION Brake valve operation Light operation • Turn on each light switch and WARNING check to see if the light glows or flashes. The turn indicators are Keep the area around the pedals normal if they flash 60 to 120 clean.

  • Page 131: Correct Driving Operation

    30 seconds. If the engine fails to WARNING start after three cranks, contact Do not place loose objects such UD Trucks authorised dealer for as tools, cans, bottles, mats, etc assistance. on the cabin floor. They can roll u n d e r n e a t h t h e p e d a l s a n d prevent their effective operation could lead to accidents.
  • Page 132 A C C position, move the vehicle to the nearest place free from traffic, switch on the hazard lamp and contact the nearest UD Trucks authorised dealer to address this issue. 1. LOCK 2.

  • Page 133: Operation Precautions

    7.CORRECT DRIVING OPERATION 7.2 Operation precautions Handling a new vehicle Precautions while driving slip. This will not only result in • The service life and performance wear out of tyres, but could cause of a truck depend largely on how it them to lose their grip on slippery WARNING is handled during the initial break-...
  • Page 134 7.CORRECT DRIVING OPERATION Engine overrun When traveling downhill or shifting Operating precaution engine rpm down CAUTION DANGER Overrun is when the engine is Do not engage the auxiliary running at a speed that exceeds brake when the road is slippery the engine’s maximum rpm.
  • Page 135 7.CORRECT DRIVING OPERATION auxiliary brake to maintain a safe speed at all times. Shifting down CAUTION to avoid overrunning the engine When driving the vehicle after will also increase the braking w a s h i n g o r w h i l e d r i v i n g force of the auxiliary brake.
  • Page 136 7.CORRECT DRIVING OPERATION Brake pedal operation method • Follow the directions below to smoothly stop the vehicle. • Press the pedal about 1/3 to 1/2 the way 25 to 35 meters in front of the planned stopping place. • At about 5 to 6 meters in front of the planned stopping place, gradually allow the pedal to return (about 1/3 to 1/2 of the initial pressed amount).
  • Page 137 7.CORRECT DRIVING OPERATION WARNING WARNING The brakes will stop working • Keeping the pedal pressed when the compressed air in the will stop the vehicle in a short b r a k e s y s t e m i s b e l o w t h e d i s t a n c e , b u t t h i s w i l l b e operating pressure.
  • Page 138 7.CORRECT DRIVING OPERATION Precautions when driving ABS The ABS is a device that improves taking the road and tyre condi- vehicles safety by appropriately controlling tions into consideration. wheel slip during braking to utilize • The ABS is designed to prevent the friction between the tyres and the the wheels from slipping when WARNING...
  • Page 139 • With the semi-trailer brake acti- • For any questions, please consult vated, reverse the truck carefully an authorised UD Trucks autho- until coupling has occurred. Their use on descents, particularly rised dealer in advance. • Before moving the coupled vehi-...
  • Page 140 7.CORRECT DRIVING OPERATION Gearshift lever operation Clutch operation instructions and NOTE precautions • Do not drive the vehicle when the CAUTION Make sure gearshift lever low clutch disc is worn out or when indicator is illuminated when Do not apply excessive load to the clutch is having problems.
  • Page 141 7.CORRECT DRIVING OPERATION Steering wheel operation precau- Inter-vehicular distance tions WARNING CAUTION P l e a s e o b e y a l l l o c a l t r a f f i c rules and regulations. Do not hold the steering wheel There is a tendency to ignore the turned all the way for more than...
  • Page 142 7.CORRECT DRIVING OPERATION When handling freight, do not overload the vehicle WARNING WARNING Fasten down sheets and ropes. Do not over load the vehicle. The heat from the silencer or Over-loading will negatively exhaust pipe could cause sheets affect steering and braking, or ropes to catch fire while which could lead to an accident.
  • Page 143 7.CORRECT DRIVING OPERATION Correct loading method Incorrect loading method Ensure that the freight load is distributed equally and not unbal- anced to any one side. When loading long objects, keep them from extending outside the body as much as possible, use a rack and support the load evenly.
  • Page 144 7.CORRECT DRIVING OPERATION Cargo loading Driving techniques for improving Inertial driving improves fuel econ- fuel efficiency WARNING F u e l i s n o t c o n s u m e d w h e n t h e Drive at an economic speed auxiliary brake is being used.
  • Page 145 7.CORRECT DRIVING OPERATION Reduce the start-off and stopping Do not drive with the air cleaner frequency clogged. Start-off acceleration requires energy Driving with the air filter clogged to get the stationary vehicle moving, increases the air intake resistance so the engine is at nearly a full load and decreases power, decreasing and much fuel is consumed.

  • Page 146: Driving Under Special Conditions

    7.CORRECT DRIVING OPERATION 7.3 Driving under special conditions Driving on poor roads Driving through snow Tyre chain mounting • When driving through snowy or Drive in a low gear and maintain on icy roads, attach tyre chains WARNING c o n s t a n t s p e e d w h e n d r i v i n g o n and drive at a low speed.
  • Page 147 Fuel leaks could cause a fire. If suitable tyre chains to the rear there is a fuel leak, contact the wheels. nearest UD Trucks authorised • There are various types of tyre dealer for assistance. chains. Please consult nearest UD Trucks authorised dealer for advice when purchasing •...
  • Page 148 THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY...

  • Page 149: Inspection And Maintenance

    Always keep open the front parts that cannot be serviced by the panel before tilting the cab to user, contact the nearest UD Trucks avoid damage to the vehicle. authorised dealer. When performing inspections and 1. Park the vehicle on a level service, pay attention to the following surface.
  • Page 150 8.INSPECTION AND MAINTENANCE 9. Turn the selector valve clock wise. WARNING •The vehicle should be on a flat surface, when the cab is tilted. • M a k e s u r e t h a t t h e r e i s sufficient space while tilting the cab.
  • Page 151 8.INSPECTION AND MAINTENANCE 10.Use the wrench supplied along Cab lowering For construction vehicle the tilt knob with the extension bar and pump is located inside the bumper. 1. Turn selector valve until the cab is fully tilted. anticlockwise direction. 2. Use the wrench supplied along with the extension bar supplied and pump until the cab is tilted back to its lowered position.

  • Page 152: Air Cleaner

    8.INSPECTION AND MAINTENANCE 8.2 Air cleaner Inspection and replacement Evacuator valve Inspection and maintenance of air cleaner T h e a i r c l e a n e r f i l t e r i s o f maintenance free type and cleaning Inspection and replacement proce- is not necessary.
  • Page 153 8.INSPECTION AND MAINTENANCE 2. Unlock the air cleaner cover 5. Clean the evacuator valve. Make clips and remove the cover. s u r e t h a t i t i s n o t b r o k e n o r CAUTION damaged.
  • Page 154 8.INSPECTION AND MAINTENANCE A i r c l e a n e r : S e c o n d a r y f i l t e r 3. Remove the air cleaner primary NOTE replacement filter. 1. Tilt the cab. Refer “Cab tilting” Make sure that the arrow mark in Chapter 8.
  • Page 155 8.INSPECTION AND MAINTENANCE 4. Remove secondary filter. 6. Install the primary air cleaner H a n d l i n g p r e c a u t i o n s f o r a i r filter. cleaner •...
  • Page 156 8.INSPECTION AND MAINTENANCE • Make sure that the cover and the Air conditioner belt tension To inspect the compressor belt ten- air cleaner filter are installed in an sion accurate manner. If not correctly DANGER Push down the belt between the installed, suction of dust into the pulleys with a constant force.

  • Page 157: Engine Oil Filter

    8.INSPECTION AND MAINTENANCE 8.3 Engine oil filter Oil filter replacement-GH11E 2. Tighten drain plug. Tightening torque: CAUTION T h e v e h i c l e i s e q u i p p e d w i t h a 12.8 - 22.6 Nm (1.3 - 2.3 kgfm).

  • Page 158: Fuel Filter

    UD Trucks authorised dealer f o r i n s p e c t i o n a n d maintenance.
  • Page 159 8.INSPECTION AND MAINTENANCE Replacement procedure and period 3. Loosen the fuel tank cap to in contact with the housing sur- release any pressure within the face. tank. DANGER 7. Tighten the filter by additional half 4. Remove the filter using a filter or three-quarter turn.
  • Page 160 8.INSPECTION AND MAINTENANCE 10. Remove the pre-fuel filter using a 13. Attach a new seal, lubricate the NOTE filter wrench. seal and then install the plastic reservoir. Deposits on the level sensor do not affect the function of the w a t e r s e p a r a t o r, i t i s n o t required to replace the water separator.
  • Page 161 8.INSPECTION AND MAINTENANCE 14. Apply fuel to the pre-fuel filter top 16. Connect the harness connector. 18. Run the engine in idle condition seal. Fill plastic reservoir/pre-fuel for 3-5 minutes to remove air in filter with clean diesel fuel and the fuel system.
  • Page 162 8.INSPECTION AND MAINTENANCE Water draining of fuel filter 2. Apply the parking brake. 3. Turn OFF the engine. CAUTION When water gathers in the pre-fuel 4. Remove the cover and noise f i l t e r, a w a r n i n g m e s s a g e a n d Do not continue to drive the absorbing materials attached on comments is displayed to warn the...
  • Page 163 8.INSPECTION AND MAINTENANCE 10. The warning status icon will dis- appear after the vehicle has started to run for some time after the draining operation. NOTE Once the draining operation is selected, it cannot be selected again for next 6 minutes. 8.

  • Page 164: Air Bleeding Of Fuel System

    1. Priming pump If found stop the engine and 2. Pre-fuel filter 2. Apply the parking brake. contact the nearest UD Trucks 3. Turn OFF the engine. 7. Start the engine. Let the engine authorised dealer since fuel 4. Tilt the cab.

  • Page 165: Battery

    As batteries contain corrosive, toxic battery contains sulphuric acid acid, UD Trucks do not recommend w h i c h c o u l d c a u s e s e r i o u s that they be handled by driver. Doing burns.

  • Page 166: Tyres

    8.INSPECTION AND MAINTENANCE 8.7 Tyres Rotation of tyre positions Ty r e r o t a t i o n f o r n e w t y r e s o f same size and tread Ty r e s a t e a c h w h e e l a r e w o r n depending on road conditions, cargo, brake and steering operation, If the s p a r e t y r e i s n o t u s e d f o r a l o n g...
  • Page 167 8.INSPECTION AND MAINTENANCE Rotation pattern for vehicles equipped with Steer (RIB) pattern on front axle and drive (LUG) pattern on Rear axles 8-19...
  • Page 168 8.INSPECTION AND MAINTENANCE Recommended tyre rotation for trailers - “wheel carriage”. 8-20...
  • Page 169 8.INSPECTION AND MAINTENANCE Precaution for tyre position rota- • Replenish new tyres in pairs and tion install them on the front wheels first. D o n o t i n s t a l l t y r e s w i t h t h e difference of outer diameters beyond •...
  • Page 170 (hub wheel), peel off the paint of replaced. Contact the nearest the contact surface (flat area). Clean UD Trucks authorised dealer. the surface with a wire brush and install tyres. •...
  • Page 171 8.INSPECTION AND MAINTENANCE Check loosening of wheel nuts, Removal of tyre Rear wheel Inspection procedures • Loosen the nuts with a wheel nut wrench. Loosen the nuts to the degree that they can be turned by CAUTION hand. When the hub, disc wheel and •...
  • Page 172 UD Trucks convex side of the disc wheel facing authorised dealer before use.
  • Page 173 8.INSPECTION AND MAINTENANCE • After lifting, fix the tyre by tighten- Wheel end assembly ing with the crank handle. Apply a WARNING F r o n t w h e e l b e a r i n g u s e s o i l a s force of more than 294 Nm {30 lubricant.
  • Page 174 8.INSPECTION AND MAINTENANCE Hub cap O-ring-front hubs DANGER The hubcap O-ring helps prevent moisture from entering the hub. A Mismatched or incorrect thread c r a c k e d o r t o r n O - r i n g w i l l a l l o w fasteners can result in thread moisture to pass through internal s t r i p p i n g a n d / o r a s s e m b l y...
  • Page 175 8.INSPECTION AND MAINTENANCE 8.8 Jack up Jack up points Rear wheel Jack up procedures Front wheel • Placing the jack under the axle. WARNING • Placing the jack under the front • Do not start the engine while axle. the vehicle is jacked up. The j a c k w i l l d i s l o c a t e d u e t o engine vibration.
  • Page 176 8.INSPECTION AND MAINTENANCE If jack-up is performed on the road CAUTION due to flat tyre, select a safe location where traffic is not disturbed. Alert • While the vehicle is jacked up, subsequent vehicles by using the do not leave passengers in the hazard light or the stop indicator.
  • Page 177 • If the tyre size or brand needs to be changed, contact the nearest UD Trucks authorised dealer. • To lower the jack, turn the release valve gradually to the left for opening with the jack handle.

  • Page 178: Lights And Fuses

    8.INSPECTION AND MAINTENANCE 8.9 Lights and fuses When changing a light bulb, turn Head light replacement procedure OFF the ignition switch and other 1. Apply parking brake. lig h t sw i tches . Use a bulb of t he specified capacity only.
  • Page 179 8.INSPECTION AND MAINTENANCE 6. Press the clip out and release the Indicator lamp replacement 6. Remove the bulb and replace with bulb. new bulb. 1. Apply parking brake. 2. Turn OFF the ignition switch. 3. Turn OFF the main switch. 4.
  • Page 180 8.INSPECTION AND MAINTENANCE Parking lamp replacement 6. Remove the bulb and replace with a new bulb. 1. Apply parking brake. 2. Turn OFF the ignition switch. 3. Turn OFF the main switch. 4. Disconnect the electrical connec- tor. 5. Unlock the bulb and remove. 6.
  • Page 181 8.INSPECTION AND MAINTENANCE Front end outline marker lamp 6. Replace with a new bulb and lock replacement 7. Install the holder back in place. 1. Apply parking brake. 2. Turn OFF the ignition switch. Marker lamp side replacement 3. Turn OFF the main switch. 4.
  • Page 182 8.INSPECTION AND MAINTENANCE Cab living room lamp replacement 6. Install the bulb. 1. Apply parking brake. 7. Install the cover back in place. 2. Turn OFF the ignition switch. 3. Turn OFF the main switch. Cab reading lamp replacement 4. Remove cover by pulling it at the 1.
  • Page 183 8.INSPECTION AND MAINTENANCE Tail lamp replacement 1. Apply parking brake. 2. Turn OFF the ignition switch. 3. Turn OFF the main switch. 4. Disconnect the connector. 5. Remove the glass and doom by Install the bulb. removing screws. 7. Install the covers back in place. Cab rear lamp replacement 1.
  • Page 184 8.INSPECTION AND MAINTENANCE 6. Remove the bulbs. Fog lamp replacement 6. Disconnect the electrical wire 1. Apply parking brake. 2. Turn OFF the ignition switch. 3. Turn OFF the main switch. 4. Remove electrical connector. 7. Unlock the clip 7. Install the bulb. 8.
  • Page 185 8.INSPECTION AND MAINTENANCE 8. Replace the bulb Blown fuse The fuse box is located on the lower portion of main dash and consists of mini-type fuses. Also, they are stored in the fusible link box that is located in front of the muffler installed on the right side of the chassis.
  • Page 186 If the replaced fuse immediately fails again, the electrical system n e e d s t o b e c h e c k e d a t t h e nearest UD Trucks authorised dealer. • Install a new fuse with the same current rating as that specified for the circuit.

  • Page 187: Mirror

    8.INSPECTION AND MAINTENANCE 8.10 Mirror Image on mirror Mirror arm drive position • Make sure the side and rear of the T h e l e f t / r i g h t m i r r o r a r m s h a v e vehicle can be seen in the main alignment marks for checking the mirror.

  • Page 188: Coolant

    . F o r UD Trucks authorised dealer. until the indicator falls to the replacement or cleaning, ask the suitable level.
  • Page 189 8.INSPECTION AND MAINTENANCE Coolant replenishment Checking and cleaning of radiator Clean charge air cooler body 1. Stop the engine. To maintain cooling system efficiency The charge air cooler is installed in a n d k e e p t h e e n g i n e f r o m front of the radiator which is used to...
  • Page 190 8.INSPECTION AND MAINTENANCE Cooling fan and fan shroud NOTE DANGER C h e c k t h e c o o l i n g f a n a n d f a n • Do not use water to clean the shroud for proper installation, cracks Do not modify the crankshaft or inside of the charge air cooler...

  • Page 191: Brake

    Insufficient braking or pulling to one side is dangerous. In this case, contact the nearest NOTE UD Trucks authorised dealer. Be aware of the ambient traffic conditions when driving to test the brakes. 8-43...
  • Page 192 If dam- loose. Contact the nearest age is found, contact the nearest UD Trucks authorised dealer and UD Trucks authorised dealer and have the vehicle inspected. have the vehicle inspected.
  • Page 193 If the vehicle fails to stay, head. This may greatly lower the contact UD Trucks authorised dealer braking performance. Air actuated type NOTE Be aware of the ambient traffic conditions during the test drive for the brake.
  • Page 194 Treatment for emission and exter- clutch pedal. If the play exceeds fuel nal noise 4-6mm check and service at the nearest UD Trucks authorised • White: Combustion of engine oil. Automobile emission and noise are dealer. If the temperature is low and the...
  • Page 195 8.INSPECTION AND MAINTENANCE Air cleaner Inspection procedures Other If the air cleaner filter is clogged, C h e c k f o r a n y d a m a g e t o t h e Failure of parts related to emission r e s u l t s i n b l a c k s m o k e f r o m t h e silencer main unit, the nozzle (dosing not only exceeds the regulation value...
  • Page 196 8.INSPECTION AND MAINTENANCE basis to prevent the function from Silencer and exhaust pipe Air dryer being degraded due to damage, • Damage or corrosion to the deformation or corrosion CAUTION silencer and exhaust pipe may degrade the silencing function. NOTE Failing to replace the air dryer Check it on a regular basis.

  • Page 197: Tools

    8.INSPECTION AND MAINTENANCE 8.13 Tools General tools required for the daily check and service are placed in the vehicle. Tool bag Extension bar Towing brace Socket wrench Decal hand tool applications 8-49...

  • Page 198: Service Data

    8.INSPECTION AND MAINTENANCE 8.14 Oils Engine oil recommendations UD lubricants are prepared for the • Perform the work in a location f u l l p e r f o r m a n c e o f t h e v e h i c l e . where an oil disposal unit is avail- Always use UD lubricants for regular able.
  • Page 199 8.INSPECTION AND MAINTENANCE To check the engine oil level CAUTION 1 . P a r k t h e v e h i c l e o n a l e v e l surface. • Do not drive the vehicle with the engine oil level below the 2.
  • Page 200 8.INSPECTION AND MAINTENANCE Changing the engine oil 4. When the complete oil has been drained from the oil pan, replace the drain plug in the drain hole WARNING and tighten the drain plug. Use a To avoid serious injury from hot new washer each time the drain engine and engine oil, change plug is removed.
  • Page 201 8.INSPECTION AND MAINTENANCE Replacement of transmission oil. 3. Refill the oil through the filler plug hole, until oil overflows the NOTE level plug hole. CAUTION The drain plug contains a magnet. Using non UD lubricants can Remove any metal filings from the result in severe consequential plug before installing it.
  • Page 202 8.INSPECTION AND MAINTENANCE 5. Reinsert filler plug NOTE tighten. CAUTION For PTO oil change it is not only Oil is deteriorated with increase enough to drain oil from main in the temperature, which in turn transmission but also from PTO c a u s e s f a i l u r e t h e...
  • Page 203 8.INSPECTION AND MAINTENANCE Replacement of differential gear Replacement procedure WARNING 1. To drain, remove the drain plug. Clean the magnet in the drain plug Check or replace the differential CAUTION which collects accumulated iron gear oil after the rear axle is sediments in the oil.
  • Page 204 8.INSPECTION AND MAINTENANCE Replenishment of power steering Oil filter cartridge Replace the oil filter cartridge every t i m e t h e p o w e r s t e e r i n g o i l i s WARNING replaced.
  • Page 205 8.INSPECTION AND MAINTENANCE Check and replacement of clutch Checking clutch fluid level marks on the reservoir. If it is fluid lower than the LOW mark, add UD clutch fluid till the HIGH mark. DANGER CAUTION • Check or replace the clutch It is strongly recommended to fluid after the engine is cooled use UD lubricants in order to...
  • Page 206 8.INSPECTION AND MAINTENANCE Precautions for handling clutch Lubrication fluid CAUTION • Since the clutch fluid has a strong • If the clutch fluid level is low, it NOTE characteristic of moisture absorp- is necessary to check if there is tion, it must be carefully handled. a n y l e a k a g e i n t h e c l u t c h L u b r i c a t i n g s e r v i c e i s v e r y While the clutch fluid is checked,...

  • Page 207: Coupling

    8.INSPECTION AND MAINTENANCE 8.15 Coupling Care Inspection NOTE WARNING Close coupling before cleaning There is risk of accident if the with high-pressure washers. coupling play is not corrected. • After cleaning, re lubricate cou- Longitudinal play pling pin and support ring with recommended grease.
  • Page 208 8.INSPECTION AND MAINTENANCE Vertical play Coupling pin Lower bush Check wear for internal diameter of the lower bush, maximum admissible internal diameter of lower bush is 31.5 mm.for C-RO400G and 35.9 mm for C-RO50 Passage below pin must be free. P l e a s e v i s i t n e a r e s t U D Tr u c k s authorised dealer for replacement.
  • Page 209 . • If not, contact nearest UD Trucks Ensure care to avoid accidents. authorised dealer for assistance.

  • Page 210: Wiper Blade

    8.INSPECTION AND MAINTENANCE 8.16 Wiper blade Replacement procedure 4 Press and pull the lock. 5 Replace the wiper blade and lock it. 1 Apply the parking brake. NOTE Make sure that the blades are locked in position. 1. Parking brake released NOTE 2.
  • Page 211 8.INSPECTION AND MAINTENANCE 8.17 Washing the vehicle Vehicle washing precautions Precautions while washing around Removing mud or snow • When washing the vehicle, pre- the silencer vent the entry of water into the When washing around the silencer, Use only a soft cloth or a washing electrical components.
  • Page 212 8.INSPECTION AND MAINTENANCE Precautions while washing the Precautions cleaning vehicle lights When performing a high pressure undercarriage wash Follow the instructions below when When washing the undercarriage, do clean the vehicle lights Follow the instructions below when not apply the steam or water directly clean the vehicle lights f r o m a p r e s s u r e w a s h e r o n t h e steering shaft joint, sector shaft joint,...

  • Page 213: Handling Of Exhaust

    8.INSPECTION AND MAINTENANCE 8.18 Handling of exhaust (applicable for Euro IV/China IV or equivalent standard) the ignition is turned OFF. Therefore, Do not kick or strike the silencer. NOTE wait for at least 120 seconds before disconnecting the battery cable or CAUTION Not applicable for Euro III/China electrical system connectors when...
  • Page 214 Ensure the AdBlue tank is full always. U s e o n l y u r e a w a t e r s o l u t i o n (AdBlue) specified by UD Trucks that satisfies the ISO22241-1. 8-66...
  • Page 215 8.INSPECTION AND MAINTENANCE Removing the filler cap NOTE WARNING • When the cap is locked, the cap rotates freely and cannot be • Turn the key until the cap is Handle Adblue with proper care, opened. Insert the AdBlue tank locked.

  • Page 216: Fifth Wheel

    8.19 Fifth wheel Inspection and lubrication 20 tonne 28 tonne WARNING All maintenance must be per- formed by a UD Trucks autho- rised dealer only. maintenance must be performed while the tractor is uncoupled from the trailer. Failure to follow...
  • Page 217 8.INSPECTION AND MAINTENANCE 1. Bracket contact surface Inspection and lubrication • Tighten the loose bolts and fasteners • Replace missing damaged parts. CAUTION To adjust the fifth wheel contact nearest UD Trucks authorised dealer. 8-69...

  • Page 218: Vehicle Storage

    8.INSPECTION AND MAINTENANCE 8.20 Vehicle storage • Inflate the tyres based on the • Clean and remove the rust in pressure provided by the tyre the body, if required paint the manufacturer. spot again. CAUTION • Release parking brake Maintenance of vehicle during chock the wheels.

  • Page 219: Greasing

    8.INSPECTION AND MAINTENANCE 8.21 Greasing Greasing should be performed periodically. Wipe all dust and dirt from the grease nipples with a cloth, and then apply grease. After greasing, wipe off any excess grease. 1. Spring pin 2. Spring pin and Shackle pins 8-71...
  • Page 220 8.INSPECTION AND MAINTENANCE 6*2 and 6*4 1. Spring pin 2. Spring pin and Shackle pins 8-72...
  • Page 221 8.INSPECTION AND MAINTENANCE 1. Spring pin 2. Spring pin and Shackle pins 8-73...
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  • Page 223: Overview

    The oil change at first service, 1. Transmission oil 2. Rear axle oil For complete information on the lubrication points, oils and fluids, service intervals and service contract, please contact your UD Trucks authorised dealer.
  • Page 224 9.MAINTENANCE SCHEDULE Torque tightening intervals First Torque tightening intervals Items Kilometers x 1000 Remarks Months SUSPENSION FRONT U-bolt and nut SUSPENSION REAR U-bolt and nut U-bolt on rear axle suspension bracket...
  • Page 225 9.MAINTENANCE SCHEDULE Grease lubrication For complete lubrication points and intervals refer to maintenance programme provided with the purchase of the truck or contact your nearest UD Trucks authorised dealer.
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  • Page 227: Emergency Procedures

    10.EMERGENCY PROCEDURES 10.EMERGENCY PROCEDURES 10.1 When there is problem Precautions for failure • Place the warning indications • If it cannot be repaired, contact s i g n s a r o u n d t h e v e h i c l e t o t h e n e a r e s t Tr u c k s...
  • Page 228 H a v e i t i n s p e c t e d b y t h e CAUTION w i l l l e a d t o t r a n s m i s s i o n nearest UD Trucks authorised failure. The release nut is secured on dealer.
  • Page 229 10.EMERGENCY PROCEDURES Method to use tow brace 1. Remove the cap. 3. Install tow brace with tow pin. Towing precautions Do’s • Always chock the wheels, before releasing parking brake. • Disconnect propeller shaft before towing. • Always use tow hook and tow rod for towing the truck.
  • Page 230 10.EMERGENCY PROCEDURES If flat tyre or burst tyre occurs while driving DANGER Do not drive with a flat tyre, the flat tyre will overheat and result in an accident. Replace the tyre immediately. • Hold the steering wheel securely and press the brake slowly to decrease the speed gradually.

  • Page 231: Jump Start

    10.EMERGENCY PROCEDURES 10.2 Jump start Precautions for jump start • Connect the negative end of another jumper cable (black) to NOTE the negative (–) terminal of the WARNING good battery and the other end If the battery is frozen or ice is •...
  • Page 232 10.EMERGENCY PROCEDURES • If the auxiliary batteries are in another vehicle, switch OFF the e n g i n e o f t h a t v e h i c l e a n d ensure that the two vehicles are not in contact with each other •...

  • Page 233: Maintenance Standard

    11.SERVICE DATA 11.SERVICE DATA 11.1 Maintenance standard For more information on the items below contact your UD Trucks authorised dealer. Item Maintenance standard Remarks Toe-in 1 mm at axle free condition Wheel alignment Camber 0° 42’ Caster 3° 30’ 49° X 34.5°...
  • Page 234 11.SERVICE DATA Recommended lubricants Lubricant Grade/Standard UD lubricants VDS-3 UD Engine Oil Mega Multi 3 SAE 15W-40 Engine oil VDS-4 UD Engine Oil Mega Multi 4 SAE 15W-40 Gear oil Transmission API GL-4 UD Genuine Gear Oil GL-4 80W-90 Single reduction Axle oil API GL-5 UD Genuine Rear Axle Oil GL-5 85W-140...
  • Page 235 11.SERVICE DATA Capacities (approximately) Engine total oil volume inclu- Oil volume between dipstick Title Engine sive approximate volume for Remarks Max - Min (liters) oil filter (liters) Engine oil GH11E 37.5 Title Engine Capacity (liters) Remarks Only a guide line as this varies Engine coolant GH11E 49.5...
  • Page 236 11.SERVICE DATA Gearbox Stan- Gearbox with oil Gear box with Gear box with PTO and Variant Title dard oil volume cooler oil volume PTO oil volume oil cooler oil volume (Model) (liters) (liters) (liters) (liters) ST1306 11.5 11.6 12.5 12.6 (F6S13T) 6 Speed ST1006...
  • Page 237 11.SERVICE DATA Recommended SAE viscosity number Use oil with the right viscosity value that suits the climatic condition of the area being operated. Engine oil Gearbox oil. 11-5...
  • Page 238 11.SERVICE DATA Axle oil. Grease quality Requirements for lubricating grease are as follows. • High grade wheel bearing grease should be used. • The grease should be mineral oil based. • The grease should be lithium or lithium complex type. •...
  • Page 239 11.SERVICE DATA Diesel fuel Fuel composition plays an important role in engine function, service life and emission pattern. In order to achieve specified performance in terms of power output and fuel economy, and to meet the emission requirements that the authorities set, you must only use fuels that fulfil legal requirements and national and international standards.
  • Page 240 11.SERVICE DATA Fifth wheel Variant. Fifth wheel Model No. D-value King pin size Max vertical load Fifth wheel height “H” FW20-150 150 kN 50 mm 20 tonne 150 mm KPSIZE50 FW20-185 150 kN 50 mm 20 tonne 185 mm FW28-150 190 kN 90 mm 28 tonne...
  • Page 241 11.SERVICE DATA Engine specification GH11E - D11A 370 EU3 GH11E- D11A390 EU3 GH11E - D11A420 EU3 Designation GH11E - D11B370, EU4SCR GH11E - D11B390, EU4SCR GH11E - D11B420, EU4SCR 370 hp (1900 rpm) 390 hp (1900 rpm) 420 hp (1900 rpm) Power net 370 hp (1800 rpm) 390 hp (1800 rpm)
  • Page 242 11.SERVICE DATA Electrical system-24 Volts Sl No. Description Category Specification Bulb- Head lamp U/D Lamp 75/70W Bulb- Front direction indicator lamp PY21W Bulb- Front position lamp Bulb- Front end-out marker lamp Bulb- Front fog lamp Bulb-Side marker lamp with tail lamp Bulb-Side marker lamp without tail lamp Bulb- Side direction indicator lamp P21W...
  • Page 244 UD Trucks Corporation Pub. No. 22336671 1-1, Ageo-shi, Saitama 362-8523, Japan...

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