Hydraulic
System
Reelmaster 5500-D
Hydraulic System (Rev. C)
Page 4 - 13
Traction Circuit
The hydrostatic transmission is driven by a drive shaft
off the front of the engine crankshaft. Pushing the top of
the traction pedal, rotates the variable displacement
pump swash plate to create a flow of oil. This oil is di-
rected to the fixed displacement motor which turns the
differential input shaft to drive the front wheels. Operat-
ing pressure on the high pressure side of the closed loop
is determined by the amount of load developed at the
fixed displacement motor. As the load increases, pres-
sure can increase to a maximum of 3625 PSI in the for-
ward direction and 2755 PSI in reverse. Main system
pressure is limited by a high pressure relief valve on
each side of the closed loop circuit. System pressure
can be measured at test ports on the transmission. If
pressure exceeds the relief setting, oil flows through the
relief valve to the low pressure side of the closed loop
circuit.
An integral charge pump provides a constant supply of
charge oil to the variable displacement pump and closed
loop circuit for lubrication and to make up for oil that is
lost due to internal leakage in the pump and motor.
Charge pump flow is directed through the oil cooler, then
through the filter to the low pressure side of the closed
loop circuit. A cooler bypass valve and filter bypass
valve allow charge oil flow to the closed loop if the cooler
or filter becomes plugged. Charge pressure is limited to
150 PSI by a relief valve. Charge pressure can be moni-
tored at the charge pump test port.
Summary of Contents for 00075SL
Page 2: ...Reelmaster 5500 D ...
Page 4: ...Reelmaster 5500 D ...
Page 6: ...Reelmaster 5500 D ...
Page 64: ...Reelmaster 5500 D Hydraulic System Rev C Page 4 26 This page is intentionally blank ...
Page 170: ...Reelmaster 5500 D Page 5 40 Electrical System Rev C ...
Page 192: ...Reelmaster 5500 D Differential Axle Page 6 22 ...
Page 254: ...Reelmaster 5500 D Groomer Rev C Page 8 1 14 ...
Page 278: ...Reelmaster 5500 D Page 10 2 Electrical Diagrams Rev C ...
Page 284: ...Rev C Page 10 8 Harness Drawing Reelmaster 5500 D Serial Number 210000401 to 210999999 ...
Page 285: ...Rev C Page 10 9 Harness Diagram Reelmaster 5500 D Serial Number 210000401 to 210999999 ...
Page 286: ...Rev C Page 10 10 Harness Drawing Reelmaster 5500 D Serial Number 220000001 to 220999999 ...
Page 287: ...Rev C Page 10 11 Harness Diagram Reelmaster 5500 D Serial Number 220000001 to 220999999 ...
Page 288: ...Rev C Page 10 12 Harness Drawing Reelmaster 5500 D Serial Number Above 230000000 ...
Page 289: ...Rev C Page 10 13 Harness Diagram Reelmaster 5500 D Serial Number Above 230000000 ...
Page 290: ...Reelmaster 5500 D ...