Section 25 - Four-Wheel Drive Front Axle - Chapter 5
25-5-5
When the axle hits a medium-sized bump, oil will be forced from the piston side through the lockout valve (4) and
check (11) to the rod side of the cylinder and through lock out valve (3) to orifice (9) and relief valve (10). Since
orifice (9) will not handle this much flow relief valve (10) will open allowing the oil to pass to the accumulator. The
accumulator absorbs the shock to the axle. No oil passes to tank, it is stopped at check valve (14), the check in the
unload valve (5), and relief valve (7).
To return the axle to its original position the additional pressure now in the accumulator will force oil flow back to the
piston end of the cylinder through check valve (8). Oil displaced from the rod end of the cylinder will flow back
through orifice (12) and lockout valve (4) back to the piston end of the cylinder.
If the axle hits a large bump oil will be forced from the piston side through the lockout valve (4) and check (11) to the
rod side of the cylinder and through lock out valve (3) to orifice (9) and relief valve (10). Since orifice (9) will not
handle this much flow relief valve (10) will open allowing the oil to pass to the accumulator. With the volume of oil
now too great for the accumulator to absorb, excess oil will pass through lock out valve (4) then through relief valve
(7) to tank.
Returning the axle to its original position will require additional oil to the system since some was lost to sump.
When the potentiometer signals the controller that the axle has moved out of the mid point band for more than 0.1
second the controller will energize the raise solenoid (1) and maintain current to both lockout valves (3 and 4). PFC
oil will be directed to the signal line, through check valve (14), check (8), through the energized lockout solenoid (3)
to the piston end of the cylinder. Oil from the rod end will also flow through the orifice (12) through lockout valve (4)
into the piston end of the cylinder.
To lower the front of the tractor the lower solenoid (2) is energized along with the two lockout valves (3 and 4). This
allows PFC pressure to flow through the solenoid (2) to open the unload valve (5). Oil from the piston side of the
cylinder will flow through the check in lockout valve (4) with some going to tank through the unloading valve and
some through check (11) and orifice (12) to fill the void in the rod side of the cylinder. Lowering the front of the
tractor will normally only occur during calibration or if weight is removed from the front of the tractor.
Specifications:
Lockout solenoid resistance 5.6 ohms.
Raise and Lower solenoids resistance 10 ohms.
Accumulators come pre-charged to 420 to 450 PSI with dry nitrogen and are not serviceable.
Содержание T8010
Страница 22: ...Section 00 Chapter 1 January 2006 STANDARD TORQUE SPECIFICATION ...
Страница 28: ...Section 00 Chapter 2 January 2006 SAFETY GENERALINFORMATION MAINTENANCE SCHEDULE ...
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Страница 36: ...Section 10 Chapter 1 January 2006 ENGINE REMOVAL AND INSTALLATION ...
Страница 37: ...Section 10 Engine Chapter 1 10 1 2 TABLE OF CONTENTS ENGINE REMOVAL 10 1 3 ENGINE INSTALLATION 10 1 10 ...
Страница 52: ...Section 10 Chapter 2 January 2006 FUEL TANK FUEL SENDER REMOVAL AND INSTALLATION ...
Страница 63: ...Section 10 Engine Chapter 2 10 2 12 ...
Страница 64: ...Section 10 Chapter 3 January 2006 HOOD REMOVAL INSTALLATION ...
Страница 65: ...Section 10 Engine Chapter 3 10 3 2 TABLE OF CONTENTS HOOD REMOVAL 10 3 3 HOOD INSTALLATION 10 3 5 ...
Страница 70: ...Section 10 Chapter 4 January 2006 COOLING SYSTEM MODULE REMOVAL AND INSTALLATION ...
Страница 80: ...Section 10 Chapter 5 January 2006 VISCOUS FAN DRIVE TEST ...
Страница 90: ...Section 21 Chapter 1 January 2006 POWERSHIFT TRANSMISSION SYSTEM How It Works and Troubleshooting ...
Страница 140: ...Section 21 Chapter 2 January 2006 FRONT FRAME TO SPEED TRANSMISSION SPLIT ...
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Страница 152: ...Section 21 Chapter 3 January 2006 SPEED TO RANGE TRANSMISSION SPLIT ...
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Страница 162: ...Section 21 Chapter 4 January 2006 SPEED TRANSMISSION ...
Страница 244: ...Section 21 Chapter 5 January 2006 RANGE TRANSMISSION TO REAR FRAME SPLIT ...
Страница 254: ...Section 21 Chapter 6 January 2006 RANGE TRANSMISSION ...
Страница 330: ...Section 21 Chapter 7 January 2006 TRANSMISSION CONTROL VALVES AND INCHING VALVE ...
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Страница 352: ...Section 21 Chapter 8 January 2006 REAR FRAME ...
Страница 392: ...Section 21 Chapter 9 January 2006 HYDRAULIC PUMP DRIVE ...
Страница 404: ...Section 25 Chapter 1 January 2006 FRONT WHEEL DRIVE FWD CONTROL SYSTEM How It Works ...
Страница 407: ...Section 25 Four Wheel Drive Front Axle Chapter 1 25 1 4 RI02E086 1 FWD SOLENOID 2 POWERSHIFT VALVE RANGE 1 2 ...
Страница 409: ...Section 25 Four Wheel Drive Front Axle Chapter 1 25 1 6 RH05J060 1 FRONT WHEEL DRIVE FWD SWITCH 1 ...
Страница 416: ...Section 25 Chapter 2 January 2006 DIFFERENTIAL LOCK CONTROL SYSTEM How It Works ...
Страница 419: ...Section 25 Four Wheel Drive Front Axle Chapter 2 25 2 4 RI02E086 1 PTO DIFF LOCK VALVE 2 DIFF LOCK CLUTCH SOLENOID 1 2 ...
Страница 421: ...Section 25 Four Wheel Drive Front Axle Chapter 2 25 2 6 RD05J060 1 DIFFERENTIAL LOCK SWITCH 1 ...
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Страница 432: ...Section 25 Chapter 3 January 2006 FWD OUTPUT SHAFT ...
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Страница 448: ...Section 25 Chapter 4 January 2006 FWD DRIVE SHAFT ...
Страница 449: ...Section 25 Four Wheel Drive Front Axle Chapter 4 25 4 2 TABLE OF CONTENTS SPECIAL TORQUES 25 4 3 FWD DRIVE SHAFT 25 4 4 ...
Страница 455: ...Section 25 Four Wheel Drive Front Axle Chapter 4 25 4 8 ...
Страница 456: ...Section 25 Chapter 5 January 2006 SUSPENDED FWD AXLE SYSTEM How It Works and Troubleshooting ...
Страница 474: ...Section 25 Chapter 6 January 2006 SUSPENDED FWD AXLE REMOVAL ...
Страница 480: ...Section 25 Chapter 7 January 2006 SUPERSTEER AXLE REMOVAL AND INSTALLATION ...
Страница 489: ...Section 25 Four Wheel Drive Front Axle Chapter 7 25 7 10 ...
Страница 490: ...Section 25 Chapter 8 January 2006 LIMITED SLIP FWD DIFFERENTIAL ...
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Страница 518: ...Section 25 Chapter 9 January 2006 LOCKING FWD DIFFERENTIAL ...
Страница 546: ...Section 25 Chapter 10 January 2006 FWD PLANETARY HUB STEERING KNUCKLE AND AXLE DRIVE SHAFT ...
Страница 588: ...Section 25 Chapter 11 January 2006 SUSPENSION FWD AXLE ...
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Страница 614: ...Section 25 Chapter 12 January 2006 SUPERSTEER AXLE VERTICAL CONTROL LINKAGE ...
Страница 620: ...Section 27 Chapter 1 January 2006 REAR AXLE AND PLANETARIES ...
Страница 652: ...Section 31 Chapter 1 January 2006 POWER TAKE OFF CONTROL SYSTEM How it Works ...
Страница 656: ...Section 31 PTO Chapter 1 31 1 5 RD05J060 1 PTO CONTROL SWITCH 1 ...
Страница 670: ...Section 31 Chapter 2 January 2006 PTO CLUTCH ASSEMBLY Single Reversible and Dual Speed ...
Страница 684: ...Section 31 PTO Chapter 2 31 2 15 STEP 42 Remove bearing cones from each side of the bearing cage RD05D008 RD05D010 ...
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Страница 716: ...Section 33 Chapter 1 January 2006 BRAKE VALVE ...
Страница 724: ...Section 33 Brakes Chapter 1 33 1 9 STEP 26 102RS5 Install the right side cover ...
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Страница 726: ...Section 33 Chapter 2 January 2006 BRAKE CYLINDERS ...
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Страница 738: ...Section 35 Chapter 1 January 2006 HOW TO READ SYMBOLS IN A HYDRAULIC SCHEMATIC ...
Страница 749: ...Section 35 Hydraulic Systems 3PT Chapter 1 35 1 12 NOTES ...
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Страница 758: ...Section 35 Chapter 2 January 2006 HYDRAULIC SYSTEM HOW IT WORKS WITH TROUBLESHOOTING ...
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Страница 808: ...Section 35 Chapter 3 January 2006 PTO AND DIFFERENTIAL LOCK VALVE ...
Страница 818: ...Section 35 Chapter 4 January 2006 REMOTE VALVE AND COUPLER SERVICE ...
Страница 832: ...Section 35 Chapter 5 January 2006 REMOTE HYDRAULIC SYSTEM How It Works and Troubleshooting ...
Страница 866: ...Section 35 Chapter 6 January 2006 PRIORITY AND REGULATOR VALVE ...
Страница 880: ...Section 35 Chapter 7 January 2006 CHARGE PUMP ...
Страница 884: ...Section 35 Chapter 8 January 2006 PFC PISTON PUMP ...
Страница 888: ...Section 35 Chapter 9 January 2006 HITCH SYSTEM How it Works ...
Страница 910: ...Section 35 Chapter 10 January 2006 HITCH CONTROL VALVE ...
Страница 921: ...Section 35 Hydraulic Systems 3PT Chapter 10 35 10 12 ...
Страница 922: ...Section 35 Chapter 11 January 2006 TRACTOR HITCH ...
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Страница 950: ...Section 41 Chapter 1 January 2006 STEERING COLUMN AND STEERING HAND PUMP REMOVAL AND INSTALLATION ...
Страница 961: ...Section 41 Steering Chapter 1 41 1 12 ...
Страница 962: ...Section 41 Chapter 2 January 2006 WHEEL TOE IN SETTING SuperSteer FWD Axle ...
Страница 972: ...Section 50 Chapter 1 January 2006 AIR CONDITIONING SYSTEM Troubleshooting and Fault Codes ...
Страница 1061: ...Section 50 Climate Control Chapter 1 50 1 90 NOTES ...
Страница 1062: ...Section 50 Chapter 2 January 2006 AIR CONDITIONER SYSTEM SERVICE ...
Страница 1182: ...Section 55 Chapter 1 January 2006 ELECTRICAL SYSTEM How It Works And Troubleshooting ...
Страница 1189: ...Section 55 Electrical System Chapter 1 55 1 8 INSTRUMENTATION AND CONTROLS RD05J040 INSTRUMENTATION CLUSTER ...
Страница 1198: ...Section 55 Electrical System Chapter 1 55 1 17 ARMRST RIGHT HAND CONSOLE 1 ARMREST CONTROLLER 1 ...
Страница 1208: ...Section 55 Electrical System Chapter 1 55 1 27 RD06A178 UNDER HOOD 1 INTERMEDIATE STARTING RELAY 1 ...
Страница 1386: ...Section 55 Chapter 2 January 2006 INSTRUMENTATION CONTROLLER FAULT CODES ...
Страница 1419: ...Section 55 Electrical System Controller Chapter 2 55 2 34 ...
Страница 1420: ...Section 55 Chapter 3 January 2006 AUX HITCH PTO FAULT CODES TRACTOR MULTI FUNCTION TMF CONTROLLER ...
Страница 1528: ...Section 55 Chapter 4 January 2006 TRANSMISSION CONTROLLER FAULT CODES INCLUDES SUSPENDED AXLE ...
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Страница 1606: ...Section 55 Chapter 5 January 2006 ARMREST CONTROLLER FAULT CODES ...
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Страница 1646: ...Section 55 Chapter 6 January 2006 ELECTRONIC CONTROLLER CONFIGURATION CALIBRATION AND FAULT CODE RETRIEVAL ...
Страница 1722: ...Section 90 Chapter 1 January 2006 PEDAL AND PEDAL SWITCH ADJUSTMENTS ...
Страница 1726: ...Section 90 Chapter 2 January 2006 CAB RAISE REMOVAL AND INSTALLATION ...