115
THE TRANSMISSION CONTROLS
The transmission is controlled by an electronic gear
selector (EGS). This unit has a microprocessor
which receives certain inputs (gear selector position,
speed sensor...) which are processed and will give
output signals to the control valve.
The valve assembly has: 6 solenoid, 6 shift spools,
a pressure reducer, an electronic controlled modula-
tion valve, an accumulator, a pressure booster and
a speed sensor.
Operation of the valve is as follows:
Regulated pressure 20 bar is directed to the shift
spools, pressure booster and pressure reducer.
In the pressure reducer, regulated pressure is re-
duced to 5.5 bar. This reduced pressure is used as
supply for the solenoid and electronic controlled
modulation valve.
When activated, the electronic controlled modulation
valve will give an output pressure curve from 0 to 5
bar.
This pressure curve is multiplied in the pressure
boost valve. In this way, for the directional clutches
a curve of 0-20 bar is available.
Between the electronic modulation valve and the
booster is an accumulator to damper any hydraulic
vibration.
When forward is selected the electronic modulation
valve and the forward solenoid are activated.
The pilot pressure of the forward solenoid will move
the shift spool so that a forward clutch can be fed
with modulated pressure.
If the high/low solenoid is not activated the forward
high clutch is engaged, if it is activated the forward
low clutch is engaged.
When reverse is selected the electronic modulation
valve and the reverse solenoid are activated, the pi-
lot pressure of the reverse solenoid will move the
shift spool so that the reverse clutch can be fed with
modulated pressure.
The shift spools from forward and reverse are locat-
ed against each other with a return spring in be-
tween; this is to make sure that only one direction
can be selected.
Range is selected as follows:
if the range solenoid (2nd/1st) is not activated, regu-
lated pressure is fed through the modulation shift
spool and through the 2nd/1st shift spool to the 2nd
clutch.
If the range solenoid (2nd/1st) is activated, the pilot
pressure will move the shift spool so that 1st clutch
is fed.
The transmission controls
F27728
Copyright ©
Summary of Contents for 580SR
Page 2: ...7 SPICER OFF HIGHWAY AXLE DIVISION 21199 www maskinisten net Copyright...
Page 6: ...www maskinisten net Copyright...
Page 13: ...580SR 580SR 590SR 695SR SECTION 00 SAFETY PRECAUTIONS www maskinisten net Copyright...
Page 14: ...2 SECTION 00 SAFETY PRECAUTIONS www maskinisten net Copyright...
Page 19: ...580SR 580SR 590SR 695SR SECTION 01 MAINTENANCE www maskinisten net Copyright...
Page 20: ...2 SECTION 01 MAINTENANCE www maskinisten net Copyright...
Page 24: ...2 SECTION 02 TECHNICAL SPECIFICATIONS 1 www maskinisten net Copyright...
Page 54: ...32 SECTION 02 TECHNICAL SPECIFICATIONS NOTES www maskinisten net Copyright...
Page 56: ...2 SECTION 17 TORQUE CONVERTERS www maskinisten net Copyright...
Page 68: ...2 SECTION 21 TRANSMISSION www maskinisten net Copyright...
Page 86: ...20 SECTION 21 TRANSMISSION Input Intermediate Output F29980 www maskinisten net Copyright...
Page 87: ...SECTION 21 TRANSMISSION 21 NOTE 4WD shown www maskinisten net Copyright...
Page 88: ...22 SECTION 21 TRANSMISSION NOTE 4WD version shown www maskinisten net Copyright...
Page 90: ...24 SECTION 21 TRANSMISSION F27511 www maskinisten net Copyright...
Page 93: ...SECTION 21 TRANSMISSION 27 www maskinisten net Copyright...
Page 248: ...182 SECTION 21 TRANSMISSION Remove the clutch piston assy www maskinisten net Copyright...
Page 264: ...198 SECTION 21 TRANSMISSION Remove the clutch piston assy www maskinisten net Copyright...
Page 270: ...204 SECTION 21 TRANSMISSION Remove the clutch piston assy www maskinisten net Copyright...
Page 354: ...2 SECTION 25 FRONT AXLES www maskinisten net Copyright...
Page 494: ...2 SECTION 27 REAR AXLE www maskinisten net Copyright...
Page 578: ...2 SECTION 33 BRAKES SYSTEM www maskinisten net Copyright...
Page 590: ...14 SECTION 33 BRAKES SYSTEM NOTES www maskinisten net Copyright...
Page 714: ...124 SECTION 35 HYDRAULIC SYSTEM NOTES www maskinisten net Copyright...
Page 716: ...2 SECTION 39 CHASSIS www maskinisten net Copyright...
Page 728: ...2 SECTION 41 STEERING SYSTEM www maskinisten net Copyright...
Page 760: ...34 SECTION 41 STEERING SYSTEM NOTES www maskinisten net Copyright...
Page 762: ...2 SECTION 50 CAB HEATING AND AIR CONDITIONING www maskinisten net Copyright...
Page 828: ...68 SECTION 50 CAB HEATING AND AIR CONDITIONING NOTES www maskinisten net Copyright...
Page 837: ...SECTION 55 ELECTRICAL SYSTEM 9 ENGINE LINE DIAGRAM www maskinisten net Copyright...
Page 839: ...SECTION 55 ELECTRICAL SYSTEM 11 SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 840: ...12 SECTION 55 ELECTRICAL SYSTEM LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 841: ...SECTION 55 ELECTRICAL SYSTEM 13 REAR LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 842: ...14 SECTION 55 ELECTRICAL SYSTEM WORK LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 852: ...24 SECTION 55 ELECTRICAL SYSTEM ENGINE LINE DIAGRAM www maskinisten net Copyright...
Page 854: ...26 SECTION 55 ELECTRICAL SYSTEM SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 868: ...40 SECTION 55 ELECTRICAL SYSTEM ENGINE LINE DIAGRAM www maskinisten net Copyright...
Page 870: ...42 SECTION 55 ELECTRICAL SYSTEM SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 886: ...58 SECTION 55 ELECTRICAL SYSTEM ENGINE LINE DIAGRAM www maskinisten net Copyright...
Page 887: ...SECTION 55 ELECTRICAL SYSTEM 59 SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 888: ...60 SECTION 55 ELECTRICAL SYSTEM SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 889: ...SECTION 55 ELECTRICAL SYSTEM 61 LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 890: ...62 SECTION 55 ELECTRICAL SYSTEM REAR LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 891: ...SECTION 55 ELECTRICAL SYSTEM 63 WORK LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 893: ...SECTION 55 ELECTRICAL SYSTEM 65 HEATER LINE www maskinisten net Copyright...
Page 901: ...SECTION 55 ELECTRICAL SYSTEM 73 ENGINE LINE DIAGRAM www maskinisten net Copyright...
Page 902: ...74 SECTION 55 ELECTRICAL SYSTEM SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 903: ...SECTION 55 ELECTRICAL SYSTEM 75 SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 904: ...76 SECTION 55 ELECTRICAL SYSTEM LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 905: ...SECTION 55 ELECTRICAL SYSTEM 77 REAR LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 906: ...78 SECTION 55 ELECTRICAL SYSTEM WORK LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 908: ...80 SECTION 55 ELECTRICAL SYSTEM HEATER LINE www maskinisten net Copyright...
Page 916: ...88 SECTION 55 ELECTRICAL SYSTEM ENGINE LINE DIAGRAM www maskinisten net Copyright...
Page 917: ...SECTION 55 ELECTRICAL SYSTEM 89 SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 918: ...90 SECTION 55 ELECTRICAL SYSTEM SOLENOID VALVE LINE DIAGRAM www maskinisten net Copyright...
Page 919: ...SECTION 55 ELECTRICAL SYSTEM 91 LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 920: ...92 SECTION 55 ELECTRICAL SYSTEM REAR LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 921: ...SECTION 55 ELECTRICAL SYSTEM 93 WORK LIGHT LINE DIAGRAM www maskinisten net Copyright...
Page 923: ...SECTION 55 ELECTRICAL SYSTEM 95 HEATER LINE www maskinisten net Copyright...
Page 924: ...96 SECTION 55 ELECTRICAL SYSTEM STEERING LINE DIAGRAM www maskinisten net Copyright...
Page 967: ...SECTION 55 ELECTRICAL SYSTEM 139 www maskinisten net Copyright...
Page 1028: ...2 SECTION 82 LOADER www maskinisten net Copyright...
Page 1040: ...2 SECTION 84 BACKHOE www maskinisten net Copyright...
Page 1045: ...SECTION 84 BACKHOE 7 www maskinisten net Copyright...
Page 1047: ...SECTION 84 BACKHOE 9 www maskinisten net Copyright...
Page 1049: ...SECTION 84 BACKHOE 11 www maskinisten net Copyright...
Page 1051: ...SECTION 84 BACKHOE 13 www maskinisten net Copyright...
Page 1068: ...30 SECTION 84 BACKHOE NOTES www maskinisten net Copyright...