cecdn Hohan Series Vehicle Owner’s Manual

**cecdn Hohan Series Vehicle Owner’s Manual

**

INTRODUCTION

CABIN INTERIOR OVERVIEW

1. Ventilation opening
2. Door handle
3. Left combination switch
4. Dashboard
5. Key switch
6. Right combination switch
7. Air conditioning control panel
8. Rocker switch
9. Storage box
10. Water cup holder
11. Transmission joystick
12. 24V cigarette lighter
13. Accelator Padel
14. Break Padel
15. Steering Pedal
16. Clutch Padel
17. Front hatch handle
18. Revoiving light

INSTRUMENT PANEL

1. Detection and warning light panel
2. Barometer
3. Driver display
4. Fuel gauge
5. Speedometer
6. Button 1 (see “Driver display and detection light panel”)
7. Turn indicator
8. Water temperature meter
9. Voltmeter
10. Button 2
11. Engine tachometer

DETECTION LAMPS AND ALARM LAMPS

1. Left turn reminder
2. Right turn reminder
3. Engine oil pressure alarm
4. Air pressure alarm indicator
5. Parking brake indicator
6. Trailer left turn indicator
7. Trailer right turn indicator
8. Safety belt warning indicator
9. High water temperature alarm indicator
10. Charging indicator
11. main beam indicator light
12. Front fog lamp indicator
13. Rear fog lamp indicator —–
14. Severe alarm indicato
15. Fuel alarm indicator 
16. Air filter blockage alarm indicator
17. Engine general fault warning lamp
18. Low gear indicator
19. Main vehicle ABS indicator
20. OBD indicator (emission index)
21. Main vehicle ASR indicator
22. Coolant level indicator
23. Inter wheel differential locking indicator
24. Interaxle differential lock indicator
25. ECAS alarm
26. Power take off
27. Exhaust braking
28. Oil water separator alarm
29. Work light indicator
30. Trailer ABS indicator
31. Cab unlocked warning lamp
32. Engine critical fault warning lamp

O emergency alarm switch: press the switch, all the turn light will flash, and ui ’licator on the instrument will flash at the same time.
Os power take-off switch: press the switch and tt ›w ‘‹e-off will be combined.
hw13710, hw12710 and other transmissions need to press the power take-off neutral switch and power take-off switch at the same time. when the transmission is equipped with a second power take-off, press the second power take-off switch, and the second power take-off works.
Os cab turnover switch: press the switch to put the lifting oil pump in the up or down state, and press the lifting button outside the cab to realize the electric lifting or down of the cab.
Qs ABS detection switch: when the engine is started, the ABS light on the combination instrument is always on (it will also be displayed on the LCD screen), indicating that there is a fault in the system. Press the ABS detection switch to read the combination instrument. A stopped It type is determined by checking the ABS system fault flash code table. the nct”on o A R s ‘tch ‘s to activate the TPM (tire pressure monitoring) function of ABS system. When the vehicle is rn on the ignition and wait for three minutes. Seconds ( nt”I the ABS arn”ng I’ght goes o t) release the ASR reset switch and wait for the confirmation message of TPM function ‘n’t’aI’ at”on A R ”nd”cator lashes three t’mes ”nd”cating that the TPM fund’° ” ‘alization is successful. the switch i- u d to adjust the beam height of the low beam lamp. The switch is of roller type, with an gears. e gear n”m er n icated during operation turns green. The ” ” is the in a” gear and the highest posi i f .he beam. W”th the ‘ncrease of the gear, the he”ght of the headlamp decreases engine multi torque switch: adjust engine torque mode.
@I3 variable speed limit adjustment switch: press the switch to enter the vehicle speed limit mode.
@ lifting axle switch: press the switch to inflate the lifting axle airbag; Close the switch and deflate the lift bridge airbag.
@ horn change-over switch: when the switch is not working, press the horn button on the left combination switch, and the electric horn will sound; After pressing the switch, press the horn button on the steering wheel, and the air horn will sound.
@ engine diagnosis switch: press the switch to read the engine fault indicator flash code on the Reverse lock switch: press the switch, the reverse lock works.
@ Upper power switch: press the switch to turn on the upper power. travel switch: press the switch, and the pump truck is in the travel state. instrument, and then look up the fault flash code table to determine the existing fault of the engine system. pz pumping switch: press the switch, and the pump truck is in pumping state.
@ LNG gas tank selection switch: select the gas supply tank.

OPERATING INTRODUCTION

ENGINE START/STOP PROCEDURES

4 At the first start, reset the key switch to position 2 to restart if the engine is stalled. Every start time shall not be more than 15s, the interval between Mo starts should not be less than 30s. 4′ It’s not allowed to run the engine under cold state at high speed. Stop the engine immediately and carry out maintenance service if the oil pressure is low. 4′ Engine should keep idling speed for 3-5 minutes when being started. Load can be added after the oil pressure and oil temperature is normal (especially in cold days). Otherwise, the supercharger bearings and seal rings will be wom out due to lack of oil. 4 Engine should run in idle speed for 3-5 minutes before the ignition is switched off. The engine can be stalled after the speed of turbocharger is reduced. Driver should be especially careful not to depress the throttle before stalling the engine. Hitting throttle will accelerate engine speed and the turbocharger will be in high speeding status. Once the engine is stalled, the oil pump stops supplying oil immediately, and the turbocharger impeller continues to run at high speed due to inertia. This action will cause the impeller shaft, bearings and seal rings to burn due to lack of oil. 4 The turbocharger must be pre-lubricated before restarting the engine which has been stopped for a long time. This can be achieved by disassembling the oil inlet pipe of the turbocharger and pour little of clean engine oil, otherwise it will cause early wear due to lack of oil. It is strictly forbidden to cut off the circuit connection between the battery and the central control unit when the key switch and other input power with wake- up function are not turned off. Otherwise, it will not only damage the electronic control unit,Iine pencil and electronical components of the whole vehicle in the hardware, but also make the system data lost. 4 When the fault is very serious, the serious fault alarm indicator “STOP” lights up, and the buzzer will keep alarming when the engine is working. At this time, just slow down, park well in a safe place, stop and check it immediately. The truck is only allowed to move forward after troubleshooting! Otherwise, it may cause loss of life and prop.

AIR CONDITION SYSTEM

Self check and error repair function of air conditioning control system

Self test conditions:

At the same time, press the auto key, water valve key and cycle key for 3 seconds, and then the control panel will enter the self inspection program.

Self inspection contents:
After the automatic operation of each actuator, the fault information will be displayed.

The actuator operates in the following order:
a) First, display the full screen (that is, display all the symbols to be displayed);
b) Blowing surface, internal circulation, first gear of wind speed, AC opening, water valve closing;
c) Blowing face and foot, external circulation, wind speed rising from first gear to third gear, AC closing, water valve opening;
d) Foot blowing, external circulation, wind speed up to the maximum gear, AC closed, water valve closed;
e) Display fault code;
f) Automatically exit the self-test program. The display time of each item shall not be less than 1.5s, and the display speed shall be uniform and consistent for easy viewing Check.

Automatic exit mode of forced self test:
After the automatic operation of each actuator, the fault information will be displayed.
a) Automatically exit after the end of display;
b) Press any key;
c) Power on status after self check exit.

Fault code display mode:
a) In the self-test state, the temperature display bit will display the fault code. If there are multiple faults, the temperature display bit will display the fault code The code is displayed at 1.5 second interval, and the interval time of single fault code is 1.5 second The time of two failures is 3 seconds and so on. After the display, the system will exit automatically.
b) In the fault inquiry state (press the mode key and auto key at the same time), The temperature diaplay bit will show the fault code. In case of multiple faults, the code is displayed in cycles at the speed of 1.5 second interval The interval time of single fault code is 1.5 seconds, the interval time of two faults is 3 seconds, and so on; Press the key to stop displaying the fault code.

TOWING OREOARATION

The s eering sys em wi u wi u y u i w

• The truck could be steered without hydraulic power assisted only under running state. When the engine stopped, due to the failure of hydraulic assist, it need more force to the steering wheel, so the towing vehicle should be slowly.
• If the air pressure of brake system is insufficient and the spring brake is activated, external compressed air can be introduced (At least 0.55MPa) or release by mechanical means. After that , the brake system of the vehicle will be disabled.

Energy storage spring brake chamber – emergency release

When the air pressure of parking brake circuit islower than 0.55Mpa and the air pressure that acts on the cylinder diaphragm is smaller than the spring force, the spring brake will take effect. The signal of “STOP”, the fault lamp Ot of brake system and the parking brake lamp 2 will light up simultaneously. In case of emergency, or at the service station, the energy storage chamber of the spring brake could be released by pneumatic or mechanical means.

Before releasing the energy storage spring brake chamber,make sure the truck could not be moved automatically!

• The Spring energy storage brake chamber can be temporarily released in emergency situation and maintance in service statation.
• After emergency release of the spring energy storage chamber, because the lack of air pressure of circuit and circuit II is not enough to ensure effective braking, the vehicle will cause accidents.
• The truck should not be operated before all failure warnings disappear from the dash board.

ENERGY STORAGE CHAMBER MECHANICAL EMERGENCY RELEASE

4 Diaphragm spring brake chamber: When the air pipeline which connect the brake air chamber leaks, it will cause the vehicle to brake. screwout the bolt 1 to the releasing position, the brake will be released. ‘ Dual-diaphragm spring brake chamber: Oper ” rear cover2 of dual-diaphragm sprin° ‘ akc amber and screwout the bolt “ hands after inserting into rear cover, then the parking brake will be released.

TRANSMISSEION

Transmission – without synchronizer
(HW13710(C)(L)/ HW19710(C)(L)/HW19712(C)(L)/HW20716(C)(L) .etc.) 4′ The primary transmission is not equipped with synchronizers, the gearshift is performed through movement of the sliding sleeve. Shift steps:

1. When shifting gears, the clutch pedal should be fully depressed.
2. hift from high gear to 1 and 2 gears during driving, “Mice cluth operations” shall be used for shifting.
3. The vehicle should be standstill when shifting reverse gear, Otherwise the sliding sleeve is easy to be damaged.
4. The switch valve @ have high and low gears and it is located on shift handle 2 .

• When shifting gears, the clutch should be completely disengaged, and the gear lever should be in place.
• The switch valve shall be placed in the low gear position when the vehicle parkina.
• The vehicle parking could be released until the air pressure reach the °‘ar ” a’ ‘essure and move.
• You can’t shift to any gear in advance Unless the current spee wi th ‘=. range.
• Skipping shift gear is not allowed when shif+ °a m g xc ›n ..gh gear position.
• When the vehicle is going dov’ ‘ , prohibited tc » •es. rune beMeen high and low.

HIGH GEAR AND LOW GEAR

10 gears transmission: When the transmission is shifted from the low zone to the high zone (and vice versa), firstly the handle valve should be placed in the H (L) position and Depress the clutch pedal to the end. Then shift to neutral gear, consciously wait for a while and then shift in 6 gear (5 gear). Skipping shift gear is not allowed and it will affect the synchronizer life. When the gearbox is in gear, if you operate the H(L) switch valve ,the high and low zone will not be changed. The high-low zone only can be changed when the transmission is in nature gear.

16 gears transmission: When the 16-speed transmission is shifted between split gears (half gears), first switch the valve which on the shift handle (as shown in the figure). The Steps to change from 1L to 1H: Firstly switch the valve from L to H position, then depress the clutch pedal to the end, release the clutch pedal, and the gear shifting is completed (The handle does not move during this process); The Steps to change from 1H to 2L: Firstlly switch the valve from H to L position, then depress the clutch pedal, return the handle to neutral, and then shift handle to the 2nd gear position. After hooking up, release the clutch pedal and the shift process is finished. And so on, until the shift to 8H, the same operation for downshift. If you step on the clutch pedal first, then release it, and then switch the switch on the handle, the gear will not switch. If you step on the clutch pedal first, then release it, and then switch the switch on the handle, the gear will not switch.

ENGAGE DIFFERENTIAL LOCK

peration principle of the engagement of differential lock: Firstly engage the inter-axle differential lock and then engage the inter-wheel differential lock.

Engagement of inter-axle differential lock
Push the lower part of inter-axle differential lock switch @ , When the inter axle differential lock engages, the inter-axle differential lock indicator lamp of instrument panel will be on.

Disengage the differential lock

1. Release the throttle pedal and depress the clutch pedal.
2. Press the upper part of the inter-axle differential switch @ , after the inter-axle differential lock is released, the inter-axle differential indicator on the dashboard will be of

• The differential lock can only ^° (equivalent to a walking speed). ed when the sts u or when driving straight at a low speed
• When the inter-axle differential lock indicator is on, the vehicle can not turn left or right and drive at high speed.

Differential lock between wheels

Engagement of differential lock between wheels:

1. ngage the differential lock beMeen shafts. 2
2. Release the accelerator pedal (decelerate).
3. Press the lower part of the wheel difference switch Oz , the differential lock beMeen the wheels of the rear axle is engaged, and the indicator light of the differential lock between the wheels is on.
4. Carefully step on the accelerator pedal and accelerate slowly.

Disengage the differential lock

1. Release the accelerator pedal and depress the clutch pedal
2. Press the upper part of the wheel difference switch 2 when the inter-wheel differential lock IS released, the inter-wheel differential indicator on the dashboard will be off.

POWER TAKE OFF

Disengagement of the Power take-off
Depress the clutch pedal and reset the power takeoff switch @ , After about 3s, release the clutch pedal to disconnect the power take-off. At the same time, the indicator light On on the dashboard will go off

FIFTH WHEEL

Semitrailer connection

1. Secure the semi-trailer to prevent it from sliding.
2. Lift the saddle handle @ upwards, make the handle enter the upper long hole and then pull it out until the positioning groove on the handle bar catches the saddle shell, at this time the saddle is in an open state ready to be combined.
3. Reversing docking, when the towing pin enters the saddle interface, the lock hook and wedge block will automatically lock the towing pin to complete the docking. At this time, the handle should automatically return to the position to achieve correct docking position.

BRAKE AND ELECTRICAL CONNECTIONS

Semitrailer Disconnection

1. Check the road conditions to prevent the semi-trailer from sliding.
2. Erect the semi-trailer outrigger (pay attention to the road load capacity) until it bears the load removed from the saddle, or raise the semi-trailer with air suspension, erect the semi-trailer outrigger, and then lower the semi-trailer until the semi-trailer is completely carried by the outrigger.
3. Before disengaging the tractor, the semi-trailer or full-trailer should strictly follow the sequence and disengage the brake air supply connector firstly (red) and then disconnect the brake control pipe (yellow), otherwise the trailer brake will be released. 4 Depress the clutch pedal, press the power take-off switch @ , combined with the power take-off, the indicator light 2 on the instrument panel will light up, put in the low gear, and release the clutch pedal. Disengagement of the Power take-off 4 Depress the clutch pedal and reset the power takeoff switch @ , After about 3s, release the clutch pedal to disconnect the power take-off. At the same time, the indicator light On on the dashboard will go off.
4. Pull out the saddle handle @ until its positioning slot is stuck on the saddle shell, at this time the wedge block Hz is disengaged from the lock hook 3 .Drive the tractor forward, turn the lock hook 3 release the traction pin, and complete the disengagement action.

Inspection after the coupling of trailer

1. Make sure that the locking bolt @ has returned to the state shown in the figure, and the warning hole 3 is located near the outer side of the saddle plate, at this time the saddle is locked
2. If the Locking bolt @ does not fall to the locked position, or the warning hole @ is far from the outside of the saddle plate, check whether the saddle is locked in place.

Maintenance of the Fifth wheel

4′ Before joining the tractor and semi-trailer, be sure to clean the raction ata \ th @, and make sure to fill the oil groove @ with heavy-duty grease (such as 2# lithium-based grease) and evenly coat the upper surface of the traction seat. 4 Every 5000km, remove the grease on the upper surface of the traction seat and the lock jaw Oa and the wearing ring 2 . After cleaning, use new heavy-duty grease to evenly coat the upper surface of the traction seat and the lock jaw 3 , wearing ring 2 and the mating surface of the traction pin.

4′ Every 5000km, adjust and check the following points. 4 In order to compensate for the wear of the traction pin and the lock jaw 3 and prevent the locking bar from being too tight when combined so that the handle cannot be pulled out. When thetractor is combined with a semi-trailer, unscrew the adjusting bolt Os , and then screw it in clockwise until the adjusting bolt Os is in contact with the locking bar @ Os out of the counterclockwise half bolt on the nut.

DUMP TRUCK CARGO BOX

INSPECTION INTRODUCTION

Coolant level check

WARNING

• The coolant is toxic, so avoid inhaling the body during use, storage and preparation.
• Do not open the filling cap immediately after the engine stops running to avoid scalding by the internal high temperature and pressure gas.
• If the coolant is greatly reduced during the use of the vehide, causing the entire system to overheat, do not fill the coolant immediately at this time, or the sudden temperature change will damage the engine.
• Even if there is no anti-freezing requirement in the area where the vehicle is used (the temperature is above freezing all the year round), it is not allowed to use water instead of coolant.

Fill in the coolant

1. Turn the warm air temperature adjustment button switch to the maximum warm air position.
2. Fill the coolant to max.
3. Put on the filling cap and tighten it.
4. run the engine for a period of time.
5. check the coolant level and replenish if necessary.

The safety valve can keep the inside of the cooling system at a certain pressure relative to the atmosphere to increase the boiling point of the coolant. It is strictly forbidden to remove the safety valve, otherwise it will cause damage to the water pump.
W RN!NG ! – The safety valve is especially important in the plateau area. Once  the pressure limiting valve is found to be damaged, it should be replaced as soon as possible.

Engine oil level check
4′ Park the truck on a level road, turn off the engine for 10 minutes before checking the oil level. ‘$’ Pull out the oil dipstick @ , wipe the dipstick with a clean lint-free cloth, insert the dipstick back into the dipstick tube, pull out the dipstick again, the oil level should be between the maximum and minimum marks on the dipstick, and should not be lower than the minimum Tick mark. Check repeatedly to make sure that the oil level is low, add oil.

WARNING !

• Adding oil must not exceed the maximum scale line, too much oil will damage the engine.
• Only use engine oil certified by Sinotruk.
• Do not overfill the engine oil.

AIR DRYER: MONTHLY CHECK
4 ec e air ryer every mon o in w e er i is wor ing pr y iv y w ,vehicle usage and driving conditions, check it more frequently. It can be checked by opening the drain valve of the air tank.

4 When the vehicle stops, Press the side of the valve cone @ on the drain valve and drain the condensation. 4 It is recommended to check the air reservoir furthest  from the air dryer every day. If there is a mixture of oil andwater at the drain vaIve,It indicates that the air dryer is invalid, and the granulate cartridge on the upper part of the air dryer should be replaced immediately. 4 The granulate cartridge must be replaced at least every Mo years (recommended before winter)

Tire Air Refill

1. Remove the dust cap @ ot inflation connector.
2. One end of the tire inflation hose is connected to the tire valve.
3. Screw the other enc’ re inflation hose to the inflaôon œnnector on the air dryer.
4. Speed up the engine.
5. Check tire pressure and adjust as needed.

Check wear indicator:
4′ Check the wear indicator Ô to determine whether the clutch driven disc needs to be replaæd. ‘$’ The clutch wear indicator is located above the valve body of the clutchbooster cylinder @ By observing the position of the indicator plate 2 , you can know whether the clutch driven disc is worn to the limit, so as to replace the driven disc in time. The clutch wear indicator is used to match models with pull  clutches. ‘$’ As the clutch driven disc wears, the gap L between the measuring rod seat Oa and the indicator plate Oz will gradually increase. For HW12706T and HW12710C transmissions, when L=20mm, the driven disk needs to be replaced; for other transmissions, when L=23mm, the driven disk needs to be replaced. 4 «ion of I ‘ clut‹ @ Or the replacement of the clutch driven disc, the indicator plate 2 needs to be pushed along the measuring rod @ to contact with the measuring rod seat Oa to initialize. Do not move the indicator 2 during nomal use of the vehicle.

OIL BATH AIR FILTER

• 1..u filter is not filled with engine oil after leave the factory !
• Before using the truck, the oil type should be same as the engine oil type !
• FiII the filter with engine oil up to 30 mm or 5L , Do not overfill!
• If the engine oil cannot flow easily when swinging the bottom case, the filter element shall be cleaned and the oil shall be replaced. Under extremely bad œnditions, the filter shall be inspected on daily. In normal conditions, the filter can work 80 to 150 hours, And the filter element doesn’t need to be replaced !
• The linking hook must be checked on daily to ensure that they are tightly fastened !

OTHER NOTES

4 When the vehicle is going downhill, do not skid in neutral gear. When braking, use the exhaust brake to decelerate at the same time as possible. When the vehicle is heavily loaded, you can use engine brake to assist the vehicle in deceleration. 4′ When parking for a long time, turn off the engine to avoid accidents, turn off the main power switch and apply the parking brake. ‘$’ Unauthorized modification and installation of various equipment, especially electronics, braking, steering and other related safety systems are prohibited, otherwise it may affect the life and safety performance of the vehicle, causing accidents, fires, and damage to the vehicle. SINOTRUK will not be responsible for the consequences. It isstrictly prohibited to disassemble or replace the engine ECU, otherwise the vehicle may be damaged. ‘$’ Open the front cover before tilt the cab. ‘$’ When welding work in or near the vehicle, the main power switch must be  cut off and the electrical components (NANOBCU, instrument, engine ECU, ABS control unit) plugs should be unplugged. 4′ It is forbidden to flush the engine with water, as it will cause the engine electrical system breaking and damage the ECU. 4′ The cooling system uses anti-freeze and anti-rust coolant, and it is not allowed to mix different brands of coolant. If you change a different brand of coolant, you need to thoroughly clean the engine cooling system components. 4 The moisture condensed in the air tank should be released in time to prevent freezing. And pay attention to check the working condition of the air dryer. Under normal circumstances, the service life of the desiccant in the dryer is two years. If water and dirt are discharged from the air tank, it indicates that the desiccant has expired, and the granulate cartridge should be replaced immediately. 4′ If the vehicle is parked for a long time and the temperature is low, it is best to remove the battery and put it in a warmer room.  Every 5000Km, check whether the battery electrode pile and wireconnection clip are loose and whether the battery condition is normal. 4 Keep good driving habits and avoid prolonged or sudden braking of thevehicle, otherwise it will affect the vehicle’s life and fuel eœnomy of the vehicle.

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