Radial spreader disc drive pump

Key to diagram:

Y21 Threshing mechanism clutch engage solenoid valve Y35 Grain tank unloading solenoid valve Y52 Sample gate solenoid valve (moisture measurement) Y76 Straw chopper clutch solenoid valve Y88 Front attachment clutch solenoid valve (proportional) Y105 Differential lock Y106 Parking brake Y107 Transmission - 1st gear Y108 Transmission ñ 2nd gear Y141 Ground drive forward Y142 Ground drive backward Y143 Ground drive/Shut-off valve Z46 Oil pressure switch.......................................12 bar

k when ÑActive-Tracì rear drive axle is fitted

A Consumer port T Tank port P Ground drive feed pump port P2 Working hydraulics port P4 Rotary chaff screen port P5 Low-pressure port S Grain tank unloading lubricant brush port

M2 High pressure backward measuring port M4 Actuating pressure backward measuring port M5 Actuating pressure forward measuring port

VI Low-pressure hydraulics valve block

Malfunctions:

When there are malfunctions in the low-pressure hydraulic system, only consumers which have been shut-down can cause a pressure drop in the system. In this way, the reason of a malfunction can be quickly determined by shutting down individual functions while keeping a pressure gauge connected (measuring port 910).

Note: Oil supply of the low-pressure hydraulic system is ensured by the ground drive feed pump (209). The orifice plate (412) limits the volume flow to the lowpressure hydraulic system to 5-7 l/min at the rated pressure (19+4 bar). This ensures that the feed pressure for the hydrostatic ground drive will not collapse even in case of large leaks in the low-pressure hydraulic system.

4.1.3

Low-pressure Hydraulic System Diagram

LEXION 580 - 510

4.1.3 Low-pressure Hydraulic System Diagram LEXION 580 - 510

Key to diagram:

102 Pressure filter 115 Grain tank unloading lubricant reservoir 205 Working hydraulics gear pump....................14 / 19 cm3/U 209 Ground drive feed pump.............................20 / 26 cm3/U 211 Ground drive variable-displacement pump.......................100 / 130 cm3/rev. 213 Reel drive pump..........................................15 cm3/rev. 217 Rotary chaff screen pump ..........................5.5 cm3/rev. 232 Grain tank unloading lubricant pump 301 3-D sieve pan hydraulic cylinder 312 Threshing mechanism coupling hydraulic cylinder 313 Ground drive pump servo control hydraulic cylinder 321 Grain tank unloading hydraulic cylinder 335 Sample gate hydraulic cylinder (moisture measurement) 339 Servo gearshift hydraulic cylinder 347 Straw chopper clutch hydraulic cylinder 352 Front attachment clutch hydraulic cylinder 358 Grain elevator chain tension hydraulic cylinder 407 Orifice plate G.............................................ÿ 1 mm 412 Orifice plate M.............................................ÿ 2 mm 426 Hollow screw with restrictor bore................ÿ 0.8 mm 441 Rotary coupling 601 3-D sieve pan pendulum control valve 606 Ground drive servo control hydraulic valve 706-5 Pressure relief valve....................................100±5 bar 710 Ground drive filter bypass valve 715 Servo gearshift short-circuit valve 729 Pressure relief valve....................................19+4 bar 731 Non-return valve 732 Non-return valve 748 One-way restrictor valve.............................ÿ 0.8 mm 760 One-way restrictor, one-sided 910 Measuring port

Y21 Threshing mechanism clutch engage solenoid valve Y35 Grain tank unloading solenoid valve Y52 Sample gate solenoid valve (moisture measurement) Y76 Straw chopper clutch solenoid valve Y88 Front attachment clutch solenoid valve (proportional) Z46 Oil pressure switch......................................12 bar

A Consumer port T Tank port P Ground drive feed pump port P4 Rotary chaff screen port P5 Low-pressure port S Grain tank unloading lubricant brush port

M2 High pressure backward measuring port M4 Actuating pressure backward measuring port M5 Actuating pressure forward measuring port

VI Low-pressure hydraulics valve block