148
Special features
– Never work under a tipper body that is not supported,– Switch off the power supply to the electro-hydraulic unit using the circuit breaker,– Vehicle stationary, engine off.
For safety reasons, we very strongly
advise against doing anything under the
tipper body while it is being operated or while
it is being serviced.
Maintenance
Reservoir
Regularly check and top up the engine oil level.
Change the oil once a year. If the oil contains
water, change it.
Regularly check the condition of the hose and
ensure the hydraulic system is properly sealed.
Pump and motor
No servicing required. The rolling elements are
permanently lubricated and the bearings are
lubricated by the pumped oil.
Lubrication
The pins of the tipper truck and the ram do not
contain lubricant. Regularly lubricate the hinges
and the grab handles of the side boards as well
as the retaining hooks of the rear board.
Sub-frame and tipper truck
For maximum service life, you are advised to
maintain your tipper truck by regularly washing it
using a power washer.
Carry out any required paint touch-ups quickly to
prevent the spread of rust.
After 8 months of use, check the tightening torque of the connection
between the chassis and the underbody (in
accordance with the manufacturer's
bodybuilding recommendations).
Cleaning the slide valve
► Loosen cap 244A , taking care with the ball
and retrieving it.
► Using a wide screwdriver , unscrew the banjo
bolt/piston assembly.► Check that the piston slides freely and remove any foreign bodies. Use a magnet to
remove any metal filings.
► Refit the assembly and make sure that the piston slides freely. Retain the ball with a little
grease on the cap for refitting.
► Bleed the hydraulic unit.
Bleeding the hydraulic unit
► Unscrew hexagonal cap 257.► Loosen internal screw 587 by half a turn,
using a 6 mm hex key.
► Operate the unit for a few seconds by pressing the raise button.
The tipper truck does not rise or rises very
slowly. When the oil exits through this opening,
the unit is bled.
► Retighten screw 587 and replace cap 257.
Check that the tipper truck lowers correctly.
Detailed diagram of the UD2386 hydraulic unit
Diagnostics
Symptoms ElectricHydraulic Verification/Check
The hydraulic unit does not work. XPower harness and unit relay.
X Control harness (control unit).
X Circuit-breaker.
Very noisy unit, rises slowly. XSuction strainer clogged or crushed at the bottom of the tank.
Very noisy new unit, rises quickly. XPump alignment, change the unit.
The ram lowers by itself. XLowering valve crushed or blocked.
The ram does not lower. XYes, check the slide valve and bleed.
Refer to the "Maintenance" section.
X No, check the coil and the electrical connections of the valve.
X No, replace the solenoid valve.
X No, check the alignment of the ram.
The unit works but its pressure does not increase. XSlide valve jammed if no solenoid valve on the unit.
Refer to the "Maintenance" section.
X Pressure relief device, setting, dirt.
X Pump seal out of service.
X Motor/pump coupling.
X Pump loose from its support.
The hydraulic unit does not work. XSolenoid valve blocked, replace it or retighten the nut behind the
strainer.
The control unit does not work. XCheck connection and contacts.
Emulsion in the tank. XIncorrectly positioned return pipe.
X Insufficient oil level.
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Alphabetical index
Low fuel level 90Lumbar 27
M
Maintenance, routine 74, 98Manoeuvring aids (recommendations) 73Mat 74
Menu 13, 160–161, 163, 166, 168Menus (audio) 160–161Mirrors, door 31, 83
O
Oil change 96Oil consumption 96OIl, engine 96–98On-board tools 105–110Opening the bonnet 94Overhead storage 38–41
P
Pads, brake 99Parking brake 68, 100Player, USB 152–153, 161–162Port, USB 152–153, 161–162Pressures, tyres 100Pre-tensioning seat belts 56
Protecting children 57–59
R
Radar (warnings) 74Radio 152, 160, 162Radio, digital (Digital Audio Broadcasting - DAB) 161
Range, AdBlue® 12, 98Recovery 122Regeneration of the particle filter 99Remote control 20, 66Replacing bulbs 111Replacing the air filter 98Replacing the oil filter 99Replacing the passenger compartment filter 98Resetting the service indicator 10–11Reversing camera 74
S
Safety, children 57–59Screen, colour 160Screen menu map 160–161, 163, 166, 168Screenwash fluid 97–98SCR (Selective Catalytic Reduction) 101Seat belts 55–56Seat belts, rear 56Seats, heated 28
Seats, rear 59Sensors (warnings) 74Service indicator 10–11Servicing 10–11, 98Settings, equipment 13, 18Sidelamps 46Snow chains 91Socket, auxiliary 153, 162Socket, Jack 153, 162
Sockets, auxiliary 38–41Speed limiter 76–77Speed limit recognition 75–76Speedometer 74Stability control (ESC) 52Stability control (ESP) 53Starting a Diesel engine 91Station, radio 152, 160Steering mounted controls, audio 151, 159Steering wheel adjustment 30Stop & Start 32, 38, 49, 56,
69–70, 94, 98, 122
Storage 38–41Sunshine sensor 31
T
Tables of engines 125Table, writing 38–40Tank, fuel 90Technical data 125Telephone 154, 166–168
