HYDRAULIC - PNEUMATIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER
SYSTEM
PRIMARY HYDRAULIC POWER SYSTEM - Static description
The hydraulic systems can be separated into the following circuits:-
High Pressure Circuit
Hydraulic Lift Assembly.
Remote Control Valves.
Trailer Brake (Where Fitted)
Suspended Front Axle.
Front Lift (Where fitted).
Steering Circuit
Steering Motor and Cylinders
Low Pressure Circuit
Independent Power Take Off (PTO).
Differential Lock
Front Wheel Drive engagement
Transmission clutch and synchroniser engagement
Creeper engagement (Where fitted)
Front PTO (Where fitted)
50 kph
engagement (Where fitted)
Lubrication Circuit
PTO Clutch Plates
Transmission Clutch Plates.
Transmission Shaft Pressure Lube
Pump Drive Gear Bearing.
Hydraulic Lift Cross Shaft
The high pressure circuit is of the ‘Closed Centre Load Sensing’ design on all tractor model options fed by either a
Variable Displacement Pump or a Fixed Displacement Pump.
The steering, low pressure and lubrication circuits are fed by a separate fixed displacement pump via a solenoid
activated lubrication block..
Hydraulic Pump/ HPL/ Remote Valve Options
Less Hydraulic Trailer Brakes With Hydraulic Trailer Brakes
Hydraulic Trailer Brake Italy
Fixed Disp.
Variable Disp.
Fixed Disp.
Variable Disp.
Fixed Disp.
Variable Disp.
MDC
EDC
MDC
EDC
MDC
EDC
MDC
EDC
MDC
EDC
MDC
EDC
Remotes
2
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
12 x 12
Y
Y
Y
Y
Y
Y
24 x 24
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
16 x 16
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Before commencing work on a tractor it is important to identify if the tractor has a variable displacement pump or fixed
displacement pumps and the type of transmission.
Figure
1
shows the variable displacement pump with a 16 x 16 Transmission.
84276322A 31/05/2010
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Summary of Contents for MAXXUM 100
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