SHOE & LIN AS 8W9514 - Caterpillar

Illustration 1 g00638995
Transmission Hydraulic Control (1) Solenoids. (2) Control solenoid manifold. (3) Top manifold. (4) Selector and pressure control valve. (5) Plate. (6) Selector valve. (7) Cover.The transmission hydraulic control controls the oil pressure to the torque converter, to the transmission clutches, and to the lubrication circuits. The transmission hydraulic control also controls the flow of oil to the clutches. The transmission hydraulic control is installed on the top of the planetary transmission and on the side of the torque converter housing. The transmission hydraulic control consists of the following components: solenoids (1), control solenoid manifold (2), top manifold (3), selector and pressure control valve (4), plate (5), selector valve (6) and cover (7).
Illustration 2 g00742009
Transmission Hydraulic Control (Top View) (8) No. 3 Clutch solenoid. (9) No. 4 Clutch solenoid. (10) No. 5 Clutch solenoid. (11) P2 Pressure tap. (12) P1 Pressure tap. (13) Plug for load piston. (14) P3 Pressure tap. (15) Inlet from pump. (16) Outlet to torque converter. (17) No. 2 Clutch solenoid. (18) No. 6 Clutch solenoid. (19) No. 1 Clutch solenoid.Inlet oil for operation of the hydraulic controls comes from the transmission oil filter and flows through tube (15) to the selector and pressure control valve.Oil for the operation of the torque converter flows through tube (16) and an oil line to the torque converter.The clutch solenoids direct sump oil to the ends of the selector spools. This oil moves the selector spools. When the selector spools move, oil is directed to one of the clutches.
Illustration 3 g00742011
Transmission Hydraulic Control (Bottom View) (6) Selector valve. (20) Passage to No. 2 Clutch. (21) Passage to No. 1 Clutch. (22) Passage to No. 6 Clutch. (23) Passage to No. 3 Clutch. (24) Passage to No. 4 Clutch. (25) Passage to No. 5 Clutch.Oil is sent through the following openings in the selector valve to the clutches: 20, 21, 22, 23, 24 and 25. The selector valve is attached to the top of the planetary group.
Illustration 4 g00742012
Selector and Pressure Control Valve (26) Modulating relief valve. (27) Second and fourth speed selection spool. (28) Selection spool for first speed and third speed. (6) Selector control valve. (29) Converter inlet ratio valve. (30) Direction selection spool. (4) Selector and pressure control valve. (31) Pressure differential valve. (32) Load piston.
Table 1
Valve     Function    
(26) Modulation relief valve.     Controls the maximum pressure in the system.    
(27) Second and fourth speed selection spool.     Directs oil to No. 3 or No. 5 clutch.    
(28) First and third speed selection spool.     Directs oil to No. 4 or No. 6 clutch.    
(29) Converter inlet ratio valve.     Limits the maximum pressure to the torque converter.    
(30) Direction selection spool.     Directs oil to a direction clutch.    
(31) Pressure differential valve.     Keeps a pressure differential between speed clutches and direction clutches.    
(32) Load piston.     Controls the rate of pressure increase in the clutches.    The selector and pressure control valve and the selector valve are inside