793D Off-Highway Truck Power Train: Oil Filter (Torque Converter), Oil Filter (Transmission Charging) & Screen (Torque Converter)

1.-Oil Filter (Torque Converter)

Location of the torque converter hydraulic filter (1) Torque converter hydraulic filter (2) Inlet line(3) Outlet line

Components of the torque converter hydraulic filter (4) Spring (5) Housing (6) Bypass valve (7) Elements (two)(8) Screen assembly

Torque converter hydraulic filter (1) is fastened to the side of the hydraulic tank. Oil from the torque converter sump goes to the gear pump for the torque converter and the transmission. The torque converter charge pump section sends oil to the torque converter hydraulic filter.

Oil flows through inlet line (2). The oil fills the space between the inside of housing (5), screen assembly (8), and elements (7). During normal operation, the oil goes through elements (7) and through outlet line (3). The oil then goes to the torque converter.

Screen assembly (8) and elements (7) stop any debris that is in the oil.

If the filter elements become full of debris, the restriction to the flow of oil causes a pressure increase inside the filter. The pressure oil causes bypass valve (6) to move against the force of spring (4). The oil then flows past the open bypass valve to the remainder of the hydraulic system. When the oil does not go through the filter elements, the debris in the oil will cause damage to other components in the hydraulic system.

Correct maintenance must be used to be certain that elements (7) do not become full of debris. Debris in elements (7) will stop the flow of clean oil to the hydraulic system.

2.-Oil Filter (Transmission Charging)

Location of the transmission charging hydraulic filter (1) Outlet line(2) Inlet line

Components of the transmission charging hydraulic filter (1) Outlet line (2) Inlet line (3) Plug (4) Bypass valve (5) Outlet passage (6) Inlet passage (7) Plug (8) Spring (9) Element(10) Housing

The transmission charging hydraulic filter is fastened to the outside part of the main frame. The transmission charging hydraulic filter is located near the fuel tank behind the front wheel. Oil from the torque converter sump goes to the gear pump for the torque converter and for the transmission. The transmission charge pump section sends oil through inlet line (2) to the transmission charging hydraulic filter.

Oil goes through inlet passage (6). The oil fills the space between the inside of housing (10) and element (9). During normal operation, the oil goes through element (9) to outlet passage (5). The oil exits through outlet line (1). Outlet line (1) divides the oil. Some of the oil goes to the lockup clutch and synchronizing valve. The remainder of the oil flows to the transmission hydraulic control. Element (9) stops any debris that is in the oil.

If the filter element becomes full of debris, the restriction to the flow of oil causes a pressure increase inside the filter. The pressure increase causes bypass valve (4) to move against the force of spring (8). The oil then goes past the open bypass valve to the remainder of the hydraulic system. When the oil does not go through the filter element, the debris that is in the oil will cause damage to other components in the hydraulic system.

Correct maintenance must be used in order to be certain that element (9) does not become full of debris. If the element is full of debris, the flow of clean oil to the hydraulic system will be stopped.

3.-Screen (Torque Converter)

(1) Torque converter screen

The torque converter screen is fastened to the right side of the torque converter sump.

Components of the torque converter screen (2) Spring (3) Bypass switch (4) Outlet passage (5) Spring (6) Nut (7) Filter element (8) Housing(9) Inlet passage

Oil from the torque converter outlet relief valve flows to torque converter screen (1) .

Oil flows through inlet passage (9). The oil fills the space between the inside of housing (8) and element (7). During normal operation, the oil flows through element (7). The oil then passes through outlet passage (4) to the remainder of the hydraulic system. Element (7) stops any debris that is in the oil.

If the filter elements become full of debris, the restriction to the flow of oil causes a pressure increase inside the filter. The pressure oil causes bypass switch (3) to move against the force of spring (2) .

The oil then flows past the open bypass switch to the remainder of the hydraulic system. When the oil does not go through the filter element, the debris in the oil will cause damage to other components in the hydraulic system.

Correct maintenance must be used in order to ensure that element (7) does not become full of debris. This would stop the flow of clean oil to the hydraulic system.

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793D Off-Highway Truck Power Train: Oil Filter (Torque Converter), Oil Filter (Transmission Charging) & Screen (Torque Converter) 2013-01-02T20:57:00-08:00 Rating: 4.5 Diposkan Oleh: Unknown