Designations

Designations

Item Designation Remark

I Main valve block -

II Valve block for solenoid valves

III Valve block for steering axle optional. Is flange-mounted onto valve block II.

4006 Orifice plate Ø0.8 mm 4013 Orifice plate Ø2.2 mm 4019 Orifice plate Ø7.5 mm

6034 System screw In LS operation, turn the screw in until it reaches the stop position - the valve is blocked.

7032 Non-return valve Prevents brief movements of the hydraulic cylinder (3084) in the switching process of the solenoid valve (Y145).

7068 Shuttle valve LS signal 7085 Pressure relief valve LS pressure 190 bar

7087 Pressure balance 7087 a) Open from P to T if no consumer is active = Neutral circulation. When a consumer is active, the required flow rate is regulated - the residual volumetric flow is directed to the tank. 7087 b) Regulates the required flow rate to the scraper floor motor if the scraper floor is ON. 7087c) Opened with the function “Scraper floor ON”, in addition to scraper floor ON solenoid valve (Y223), in order to keep resistance low.

9001 Working hydraulics measuring point 9024 Measuring point for LS pressure

Y027 Solenoid coil for opening tailgate Y028 Solenoid coil for closing tailgate Y063 Solenoid coil for opening cutting floor Y064 Solenoid coil for closing the cutting floor Powered: pressure build-up in the piston space of the tailgate hydraulic cylinder (3018) = open tailgate. Powered: pressure build-up in the rod space of the tailgate hydraulic cylinder (3018) = close tailgate. Powered: pressure build-up in the piston space of the cutting floor hydraulic cylinder (3042) = open cutting floor. Powered: pressure build-up in the rod space of the cutting floor hydraulic cylinder (3042) = close cutting floor.

Item Designation

Y145 Solenoid coil for steering axle lock ON

Y223 Solenoid coil for scraper floor drive ON

Y393 Solenoid coil for lifting / lowering the pick-up Y394 Solenoid coil for consumer circuit 1

Y395 Solenoid coil for consumer circuit 2

Y396 Solenoid coil for reversing the scraper floor Y397 Solenoid coil for lifting the hydraulic high-lift drawbar Y398 Solenoid coil for lowering the hydraulic high-lift drawbar

Remark

Powered: pressure build-up in the piston space of the steering axle hydraulic cylinder (3084) = lock steering axle. Powered: solenoid valve opens = scraper floor ON. The power to the solenoid valve and hence the speed of the scraper floor are infinitely adjustable. Powered: lift and lower pick-up. To lift the pick-up, the solenoid valve (Y394) is powered simultaneously. Powered: valve opens and volume flows 1. to the solenoid valve for lifting the pick-up (Y293) and 2. to the solenoid valves for opening the cutting floor (Y063), lifting the hydraulic high-lift drawbar (Y397), opening the tailgate (Y027), pick-up clutch (Y219), and steering axle lock ON (Y145) Powered: valve opens and volumetric flow flows to the solenoid valves for closing the cutting floor (Y064), lowering the hydraulic high-lift drawbar (Y398), closing the tailgate (Y028), and the proportioning roller clutch ON/OFF (Y399). Powered: reverse scraper floor.

Powered: pressure build-up in the piston space of the hydraulic cylinder for the hydraulic high-lift drawbar (3191) = lift high-lift drawbar. Powered: pressure build-up in the piston space of the hydraulic cylinder for the hydraulic high-lift drawbar (3191) = lift high-lift drawbar.

A Consumer port B Consumer port C Consumer port d Consumer port P Pump port LS LS port (Load Sensing) T Tank port -