MANIFOLD AS 3T7886 - Caterpillar

Transmission Components
Without PTO
Illustration 1 g03095677
CX28 Transmission without PTO and without transfer caseLeft Front View (1) Crankshaft adapter (2) Flex plate (3) Flex plate adapter (4) Flex plate/adapter bolts (8) (5) Adapter/converter bolts (8) (6) Adapter ring gear (7) Engine output speed sensor (8) Breather (9) Mount - M12X1.75 (10) Electronic control module (11) Customer (vehicle) interface 24-pin connector (wire harness receptacle) (12) Transmission output speed sensor (one of two) (13) Output yoke (14) Clutch number 1 pressure (15) Port for oil from remote mount filter and base (16) Manufacturing purposes only (17) Clutch number 1 (18) Lockup clutch (19) Clutch number 2 (20) Magnetic drain plug / Heater port (21) Location for left oil filter and dipstick (22) Clutch number 3 (23) Clutch number 4 (24) Clutch number 5
Illustration 2 g03095716
Front Bottom View (18) O-ring plug (Transmission oil from cooler) (19) Oil analysis sampling (Special 183-7264 Fluid Sampling Valve As ) - Pump output pressure (SOS port) (20) O-ring plug (Transmission oil to cooler inlet) (21) Magnetic filter and screen (22) Oil filter bypass indicator (23) Transmission oil drain plug- 1 5/16 STDWith PTO
Illustration 3 g03095736
CX28 transmission with PTO for use with a transfer case (7) 12 SAE #1 bolt circle (8) 12 SAE #2 bolt circle (9) Engine output speed sensor (11) Mount M12X1.75 (32) Transmission breather/filter (33) Customer (vehicle) interface 40 pin connector - For use in applications with a transfer case. (34) Clutch No. 5 solenoid (35) Clutch No. 4 solenoid (36) Clutch No. 3 solenoid (37) Clutch No. 2 solenoid (38) Lockup clutch solenoid (39) Magnetic drain plug / Heater port (40) Clutch No. 1 solenoid (41) Clutch number 1 pressure (42) PTO lube port (43) Transmission cartridge oil filter (148 X 86) (44) Filter drain plug (45) Conventional 10 bolt PTO at 8 o'clock position (46) Oil analysis sampling (special coupling 183-7264 Fluid Sampling Valve As ) - Pump output pressure (SOS port) (47) From cooler
Illustration 4 g03095759
Left Side View (26) Lifting and mounting points: Front two threaded bosses are M12x1.75. (27) Transmission breather (28) Lifting and mounting points: Rear two threaded bosses are M16x2. (29) Transmission output speed sensors (30) Output yoke (22) Shallow sump (25) Transmission oil drain plug (31) Location for left oil filler and dipstick tube (32) Clutch pressure 1 (33) Lubrication port (PTO) (34) Conventional PTO at 8 o'clock position (35) Engine speed sensorSolenoid Valve (Clutch)
Illustration 5 g03095802
379-0217 Cartridge As (36) Cap (37) Spring (38) Spool (39) Clutch pressure port (40) Seat (41) Ball (42) O-ring seal (43) Magnetic cartridge assembly (44) Chamber (45) Orifice (46) Drain port (47) Oil supply portControl of an individual clutch in a planetary transmission is achieved by the use of a modulation valve that is controlled by a solenoid.Pressurized oil is supplied by the transmission pump to the solenoid valve through oil supply port (47). Pilot pressure is allowed through control spool (38) to chamber (44). The oil in chamber (44) is allowed to drain to the sump through orifice (45) and drain port (46) .When a