RETAINER 8E3053 - Caterpillar

Illustration 1 g00498160
Transmission Lubrication (1) Manifold (2) Regulator Valve (3) PassagesLubrication oil from the oil cooler is sent through an inlet tube to oil manifold (1). Oil manifold (1) sprays oil over the transmission gears. The transmission lubrication regulator valve (2) is on the front of the transmission case at the end of manifold (1). This limits the pressure of the lubrication oil. This also directs extra oil to the transmission sump. Cored passages (3) in the transmission case send oil from the valve to the forward bearings. The forward bearings that receive oil are part of the upper shaft (4), countershaft (5) and bevel pinion shaft (6). Drilled passage (7) in shaft (6) sends oil to a cross-drilled passage. The cross-drilled passage directs oil to the reverse idler gear bearing. The bearings on the rear of shaft (4), shaft (5) and shaft (6) are lubricated by splashing oil.
Illustration 2 g00498161
Transmission Lubrication (4) Upper Shaft (5) Countershaft (6) Bevel Pinion Shaft (7) Drilled Passage