VBG 795V Manual Download Page 11

11

i

j

k

l

F

G

h

Lubricate the coupling with VBG mechanism oil. For 
maximum effect, the coupling must be open when it is 
being lubricated.

 Lubrication points (see drawing on the left)

Attachment check

•  Remove the coupling jaw and clean the shaft of rust 
and rubber residue.
•  Check that the coupling jaw is neither bent, nor has 
cracks or any damage due to electrolysis.
•  Check the wear limits as per below:

F max.  Ø 67.2 mm (without bushings)
G min.  Ø 61.6 mm

Change of Indicator/locking pin

•  Loosen the three bolts holding the lid.
•  Remove remaining parts.
•  Clean the bearing surfaces for the locking pin (k) and 
lubricate with thin grease. Check that the centring pin 
(l) is correctly fi tted.
•  Mount the parts according to the fi gure.

•  Check that there is no cracks forming or deformation 
on the drawbeam (i) and that the drawbeam sleeve (j) is 
properly attached.
Tightening torque M20 quality 8.8 (dry): 370 Nm.

Summary of Contents for 795V

Page 1: ...iest to mount it to a VBG drawbeam all of which meet these requirements The coupling has a high quality corrosion resistance through electrolytic pre treatment and a top coat with very high wear resistance To maintain the high quality of the surface treatment VBG recommend that no futher paint is added to the coupling If the coupling is over painted you run the risk of operational problems a stick...

Page 2: ...easing systems Lubrication points see adjacent drawing Mounting of drawbeam sleeve Mount the drawbeam sleeve a with four screws as per the drawing Flat washers with a minimum hardness of 200 HB must be under both bolt head and nut Tightening torque M20 quality 8 8 dry 370 Nm Mounting of coupling Lubricate the coupling jaw b and all its threads with grease This prevents rust and makes future servic...

Page 3: ...the adapter into the hook on the spring Assemble the bushing f on the left side and refit the split pin Remove the two screws on the right side of the mechanism i Place the bracket and actuator on the coupling Lock the bracket securely with the two long M12 screws which accompanied the power actuator unit Tightening torque M12 quality 8 8 dry 90 Nm Mounting of the actuator on the bracket Turn the ...

Page 4: ...n control box on page 6 Connect the supply line to the control box output marked 1 Connect the other 2 pipes to the control box outputs 2 and 4 Fit the protective cover Connect the pipe from output 4 on the control box to the front output of the actuator The pipe from output 2 is connected to the rear output of the actuator Connect the supply line to the vehicle s auxiliary air system Working pres...

Page 5: ... the inductive sensor should now be approximately 1 mm Tighten the nuts g tightening torque max 2 Nm If VBG s Indicator kit part no 09 099200 is used connect the inductive sensor according to the mounting instructions Otherwise connect the inductive sensor to the vehicle s electrical system 24 V See wiring diagram above Follow the truck manufacturer s instructions When the coupling is closed and s...

Page 6: ...emain in the up position Open and close the coupling and check that it cor responds as per the pictures below If an inductive sensor is used item d must be complied with ALWAYS check that the coupling is closed and secure before driving All criteria for closed coupling must be fulfilled before you start driving Warning Never put your fingers in the coup ling mouth because of the danger of them bei...

Page 7: ...carried out Wear limits A Coupling pin max Ø 55 0 mm B Drawbar eye max Ø 59 5 mm Vertical play in the coupling bolt max 5 0 mm Lubrication Lubricate the coupling weekly with VBG mechanism oil or similar thin oil For maximum effect the coupling should be open when it is lubricated Lubrication points see drawing on the left ...

Page 8: ...en posi tion Connect to the trailer according to the driver instruc tions on page 14 15 Air leaks Check that there is no audible air leakage from the valve e the connection to the auxiliary air system f pipes g or actuator h In extreme cold minor air leaks can occur These can be eliminated by cutting off the air supply by turning the control box s red handle d a quarter of a turn anti clockwise to...

Page 9: ... be treated as such Proper preventive maintenance inspection and lubrication are essential for a long safe and trouble free service life The length of service intervals depends on the type of trailer load road and weather conditions etc Servicing can best be carried out when other work or inspection of the vehicle is done for example every 60 000 or 90 000 km At least once a year the coupling must...

Page 10: ...The bushings must not be welded in Use tool no 9 as a guide in the lower jaw bushing Use tool no 12 as a guide in the upper jaw bushing Place the tool on the bushing before as sembly 3 5a 1 3 2 2 9 12a 10 10 Mount the wear plate Tightening torque 47 Nm Put the new mechanism on the coupling jaw and fit the screws but do not tighten completely Carry out the function check on page 6 Tighten the screw...

Page 11: ...ge due to electrolysis Check the wear limits as per below F max Ø 67 2 mm without bushings G min Ø 61 6 mm Change of Indicator locking pin Loosen the three bolts holding the lid Remove remaining parts Clean the bearing surfaces for the locking pin k and lubricate with thin grease Check that the centring pin l is correctly fitted Mount the parts according to the figure Check that there is no cracks...

Page 12: ...e locks The coupling is now open Uncoupling without power actuator For functional and road safety reasons only those steps described in the Driver instructions may be carried out using the control box power actuator or air lines during coupling and uncoupling If the coupling does not go to locked position after repeated attempts at coupling the power actuator must be uncoupled immediately Con tact...

Page 13: ...Connect to the trailer Check that there is approx 10 mm movement of the handle before the indicator pin moves outwards If there is no free movement of the handle the coupling is open and driving is not under any circum stances permitted Contact nearest workshop for remedial measures The trailer is secured and driving can begin Stand by the coupling handle Lift the handle 90º the handle locks The c...

Page 14: ...The coupling is closed when the trailer is dis connected Uncoupling Before any work or service is carried out on the coupling all air supply to the coupling must be cut off Cut off the air supply by turning the control box red handle a quarter turn anti clockwise to OFF Warning Never put your fingers into the coupling mouth because of the danger of them being crushed ...

Page 15: ...mes on and the signal pin is not completely in the coupling is open and the truck must under no circumstances be driven Contact nearest workshop for remedial measures Couple to the trailer The trailer is secured and driving may begin Check that the signal pin goes fully in and that the green warning lamp in the cab is on The coupling is closed and secured and the truck can now be driven ...

Page 16: ...l 972 8856 4330 Fax 972 8856 4324 ITALY NORDAUTO Torino S R L Via Lanzo 52 IT 10040 VAL DELLA TORRE TO Tel 39 011 96 89 005 Fax 39 011 96 89 753 JAPAN SHINKO BOEKI CO LTD Shibuya Central Bldg 3 14 Udagawa cho Shibuya ku JP TOKYO 150 Tel 81 3 33463 0941 Fax 81 3 33463 1707 NETHERLANDS WABCO AUTOMOTIVE B V Postbus 8704 NL 3009 AS ROTTERDAM Tel 31 10 2888 600 Fax 31 10 2888 601 NEW ZEALAND TRANSPORT ...

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