SUPPORT 1761915 - Caterpillar

(B) Speed clutch (P1). (C) Direction clutch (P2).
(B) Speed clutch (P1). (C) Direction clutch (P2). (E) Pilot pressure.Transmission Pressure Chart
Transmission Control Group
Transmission Control Group
(1) Pilot valve group (first level). (2) Direction selector and pressure control valve group (second level). (3) Selector and pressure control group (third level). (4) Selector and pressure control group (fourth level). (5) Manifold (fifth level). (B) Pressure tap for speed clutch (P1). (C) Pressure tap for direction clutch (P2). (E) Pressure tap for pilot pressure.
Pilot Valve Group (First Level)
(1) Pilot valve group. (6) Spool. (7) Drain cavity. (8) Pilot pressure cavity.
Direction Selector And Pressure Control Valve Group (Second Level)
(2) Direction selector and pressure control valve group. (8) Pilot pressure cavity. (9) Spool. (10) System pressure cavity. (11) Priority reducing valve. (12) Passage to forward (No. 1) clutch. (13) Passage to reverse (No. 2) clutch.
Selector And Pressure Control Group (Third Level)
(3) Selector and pressure control group. (14) Manual modulation valve. (15) Differential, check and relief valve. (16) Speed selector spool. (17) Speed selector spool. (18) Passage to No. 4 clutch. (19) Passage to No. 5 clutch.
Selector And Pressure Control Group (Fourth Level)
(4) Selector and pressure control group. (20) Load piston. (21) Modulating reducing valve. (22) Spacers. (23) Speed selector spool (three position). (24) Passage to No. 6 clutch. (25) Passage to No. 7 clutch. (26) Speed selector spool. (27) Passage to No. 3 clutch.
Relief Valve Group
(28) Relief valve group. (29) Spacers. (30) Main relief valve. (31) Relief valve for oil cooler. (32) Relief valve for transmission lubrication oil. Transmission Oil Pump Bench Test Specifications
Rotation is clockwise when seen from driven end.Bench test using SAE 10W at 49°C (120°F).Pump must rotate freely by hand.(A) Pump section for transmission and differential sump scavenge. Minimum input from differential sump scavenge ... 16.5 2.5 liter/min (4.36 .07 U.S. gpm)Minimum output ... 132 liter/min (34.9 U.S. gpm)With pump at ... 1800 rpmAt a pressure of ... 345 kPa (50 psi)(B) Pump section for transmission charging. Minimum output ... 73 liter/min (19.3 U.S. gpm)With pump at ... 1800 rpmAt a pressure of ... 2415 kPa (350 psi)Adjustment Of Cables For Transmission Control
Transmission control linkage adjustment should be made only with the engine OFF. Accidental transmission engagement and sudden machine movement could cause personal injury.
Speed And Direction Cables
1. Be sure all of pins (4) for the ends of the cables are in slots (3) of the valve spools.2. Make an adjustment to nuts (2) on the ends of the cable housing so the extension of the threads on both sides is the same.
Speed And Direction Cable Controls
(1) Selector lever. (2) Nuts. (3) Slot. (4) Pin.3. Put selector lever (1) in the REVERSE-NEUTRAL position. Remove the front cover for the controls.4. Remove the bolt and lockwasher that holds end (5) to lever (6).5. Pull up on the end of the cable as far as it will go. Make an adjustment to end (5) until the hole in the end is in alignment with the hole in lever (6).
Direction Control Adjustment
(5)