TOOTH 1386410 - Caterpillar

Note: Pressure values in Table 4 are approximate values. Use a pressure gauge for adjustment.
Illustration 4 g06299465
Travel brake valve (left side)
(5) Locknut
(6) Adjustment screw
(7) Crossover relief valve (forward left travel)
(8) Crossover relief valve (reverse left travel)
(9) Locknut
(10) Adjustment screw
Start the engine.
Place the hydraulic activation control lever in the UNLOCKED position.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Place the machine controls at the following settings: engine speed dial "7" and AEC switch OFF. Refer to Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for engine rpm settings.
Move the joystick for the stick until the stick is at the full STICK OUT position (full retraction of stick cylinder).
Check the main relief setting pressure setting at pressure tap (1) and pressure tap (2). The pressure setting should be 35000 + 500 - 1000 kPa (5076 + 73 - 145 psi).
Return the joystick to the NEUTRAL position.
Illustration 5 g06195051
Main relief valve (standard)
(A) Adjustment screw
(L) Locknut
Illustration 6 g06195116
Main relief valve (heavy lift)
(A) Adjustment screw
(L) Locknut
Loosen the locknut. Set the temporary main relief pressure to 39500 300 kPa (5729 44 psi). Turn the adjustment screw clockwise to increase the pressure. Turn the adjustment screw counterclockwise to decrease the pressure. Tighten the locknut.Note: Always make final pressure adjustments on pressure rise.
Verify the temporary main relief pressure setting with a second function. Move the joystick for the boom until the boom is at full BOOM RAISE position (full extension of the boom cylinder). The main relief pressure should be 39500 300 kPa (5729 44 psi).
Illustration 7 g06196239
Sprocket (left forward travel)
(D) Track block
(4) Sprocket
Place track block (D) in sprocket (4) to block forward left travel.
Illustration 8 g06359649
Override the "Implement Pump Displacement" parameter.
Enter "Service" Menu.
Enter password "9992".
Select "Override Parameters".
Override "Implement Pump Displacement" to the value shown in Table 1.Note: Override "Implement Pump 2 Displacement" for left travel. Override