CYLINDER & VALVE GP-COUPLER 2364442 - Caterpillar

Illustration 3 g06037960
The pressure taps for the transmission clutches are on the back of the transmission housing.
(1) Modulating valve for No. 1 clutch
(2) Modulating valve for No. 2 clutch
(3) Modulating valve for No. 3 clutch
(4) Modulating valve for No. 4 clutch
(5) Modulating valve for No. 5 clutch
(6) Modulating valve for No. 6 clutch
(7) Transmission output speed sensors
(8) Main relief valve
Remove cover to gain access to the pressure taps.
Attach one set of tooling (T1) to each pressure tap. Label each set of tooling (T1) as the tooling is attached to a valve.Test Procedure - In Gear
Illustration 4 g06302081
(9) Autoshift disable switch
(10) Speed range selector
Illustration 5 g06302082
(9) Autoshift disable switch
Disable autoshift mode (9).
Start the engine. Warm the power train oil to a temperature of 80° 5°C (176° 9°F).
Disengage the parking brake. Engage the service brakes.
Illustration 6 g06046898
(10) Speed range selector
Operate the engine at LOW IDLE.
Manipulate the speed range selector (10) to produce each speed setting shown in Table 2.
Check the pressure at tooling (T1) for each clutch. The pressure for clutches 1, 2, 4, and 5 should be 2580 105 kPa (374 15 psi) and clutches 3 and 6 should be 2420 105 kPa (351 15 psi).
Use Table 2 to check all the other combination of clutches. Copy Table 3 and record the pressure measurements in the table 1.Test Procedure - ET
Connect the tooling (T2) to the diagnostic port on the tractor.
Illustration 7 g06306872
Connect to ET.
Illustration 8 g06306875
Select "Diagnostics", then "Diagnostic Tests" from the drop-down menu.
Illustration 9 g06306877
Select "Transmission Hydraulic Control Clutch Pressure Test".
Illustration 10 g06306882
Read the warning and select "Accept".
Illustration 11 g06306888
Follow the onscreen instructions in Cat® ET. Once all conditions are met, select "Next" on the bottom of the Cat® ET screen.
Illustration 12 g06306897
"Transmission Pressure Test Selected Clutch" will show the clutch being calibrated.
The arrows at the bottom of the screen are used to select each clutch.
Select "Activate" to check the clutch pressure for each clutch.Note: All clutch pressure checks will be performed at Low idle and the "Raise Engine Speed" button is not available on the machine.
All clutch pressures will be commanded to maximum pressure of 2758 kPa (400 psi), Record all pressure measurements in Table 5.
Table 5
Transmission Gear Pressure Measurement
LUC
Clutch 1
Clutch 2
Clutch 3
Clutch 4
Clutch 5
Clutch 6
Illustration 13 g06306900
Click the "Next" button when testing all clutches is complete.