PISTON 1958766 - Caterpillar

Illustration 1 g00990823
Illustration 2 g00639194
Schematic for the transmission hydraulic system (1) Transmission section of the hydraulic tank (2) Inlet valve for the transmission oil cooler (3) Transmission oil cooler (4) Transmission scavenge pump section (5) Suction screen (6) Transmission charging pump section (7) Bypass valve for transmission charging filter (8) Transmission charging filter (9) Downshift solenoid (10) Upshift solenoid (11) Priority reduction valve (12) Neutralizer valve (13) Rotary actuator (14) Rotary selector spool (15) Selector and pressure control valve (16) Selector piston for the No. 4 clutch (17) Load piston for the No. 4 clutch (18) Modulation reduction valve for the No. 4 clutch (19) Modulation reduction valve for the No. 2 clutch (20) Load piston for the No. 2 clutch (21) Selector piston for the No. 2 clutch (22) Selector piston for the No. 1 clutch (23) Load piston for the No. 1 clutch (24) Modulation reduction valve for the No. 1 clutch (25) Modulation reduction valve for the No. 5 clutch (26) Load piston for the No. 5 clutch (27) Selector piston for the No. 5 clutch (28) Selector piston for the No. 6 clutch (29) Load piston for the No. 6 clutch (30) Modulation reduction valve for the No. 6 clutch (31) Modulation reduction valve for the No. 7 clutch (32) Load piston for the No. 7 clutch (33) Selector piston for the No. 7 clutch (34) Selector piston for the No. 3 clutch (35) Modulation reduction valve for the No. 3 clutch (36) Load piston for the No. 3 clutch (37) Magnetic screen (38) Transfer gears and transmission case (39) Relief valve for the transmission oil cooler (40) Relief valve (41) Pressure control valve (A) Pressure tap for the No. 4 clutch (B) Pressure tap for the No. 2 clutch (C) Pressure tap for the No. 1 clutch (E) Pressure tap for the No. 5 clutch (F) Pressure tap for the No. 6 clutch (G) Pressure tap for the No. 7 clutch (H) Pressure tap