PULLEY-FAN DRIVE 9N2106 - Caterpillar

Illustration 1 g03120039The torque converter outlet relief valve is mounted to the right side of the torque converter updrive housing. The torque converter outlet relief valve will keep the torque converter full of oil at all times.
Illustration 2 g03275876
Components of the torque converter outlet relief valve
(1) Spring
(2) Valve spool
(3) Spacers
(4) Poppet valve
(5) Valve body
(6) Spring Oil leaving the torque converter enters valve body (5) through the inlet passage. The oil passes through a hole in valve spool (2), unseats poppet valve (4) and acts against the end of the spool.As the pressure of the torque converter outlet oil increases, the valve spool moves against the effect of spring (1). As the spool moves, the outlet passage and the inlet passage are connected. Oil from the torque converter outlet relief valve then flows to the transmission oil cooler.Spacers (3) are used to adjust the opening pressure of the torque converter outlet relief valve.