Transmission Hydraulic Control
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| Illustration 1 | g00562667 |
Transmission Hydraulic Control (Right Side) (1) Pressure control (2) Manual modulation valve (inching) (3) Selector (4) Plate (5) Manifold (6) Relief valve | |
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| Transmission Hydraulic Control | ||
| Item | Component | Operation of Component |
| (1) | Pressure control | This component controls the oil flow, the rate of pressure increase, the rate of pressure decrease, and the oil pressure in the clutches. |
| (2) | Manual modulation valve (inching) | This component gives the operator the ability to control the creep speed of the machine until the clutch begins to slip. This component also modulates the clutch to full pressure after inching the machine. |
| (3) | Selector | This component controls the pilot pressure, the amount of pilot pressure, and the direction of the pilot pressure to pressure control (1). |
| (5) | Manifold | This component sends oil to the transmission clutches. This component also sends signal oil to the relief valve and the steering control. |
| (6) | Relief valve | This component contains the main relief valve, the lubrication relief valve, the cooler bypass valve, and the lubrication selector relief valve. This component provides extra lubrication to No. 1 and No. 2 clutch during inching the machine. |
| (7) | Rotary actuator | This component controls the movement of the rotary selector spool of selector (3). |
| (8) | Detent selector spool | This component controls the rotary actuator for speed selection. |
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| Illustration 2 | g00562686 |
Transmission Hydraulic Control (Left Side) (7) Rotary actuator (8) Detent selector spool | |
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| Illustration 3 | g00562692 |
Bottom View of Manifold (5) (9) Passage to No. 6 clutch (10) Passage for non-inch signal to relief valve (11) Passage for No. 8 clutch signal to relief valve (12) Passage to No. 5 clutch (13) Passage to No. 7 clutch (14) Passage to No. 4 clutch (15) Passage to No. 1 clutch (16) Passage from pump (17) Passage to No. 8 clutch (18) Passage to No. 3 clutch (19) Passage to No. 2 clutch | |
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