Change Brake System Oil1. Position adequate jackstands to support the tractor and remove both rear wheels to reach the hydraulic actuators of brake system. 2. Disconnect battery ground cable. 3. Remove wiring socket (A) from oil tank filler cap (B) and remove filler cap. 4. Drain the oil from the tank with a suitable syringe (gun) 1 . Otherwise disconnect the 2 plastic tubes (C) from brake pump (D) and place the end of them in a suitable receptacle until complete draining. 5. On the hydraulic actuator side, slide a transparent tube over the actuator bleed screw. 6. Unscrew the bleed screw and place the other end of the tube in a suitable receptacle. 7. Operate the corresponding brake pedal some times to force the remaining oil coming out from the bleeding screws. Repeat for the other side. 8. Tighten the two bleed screws and reinstall the two tubes to the brake pump. 9. Refill the tank with the same type of oil used in the transmission. 10. Bleed the circuit operating on the hydraulic actuators side: a. Starting from the r. h. side. b. Slide a transparent tube over the bleed screw and place the other end in a suitable receptacle. c. Slowly depress the r. h. pedal and slowly release it. d. Wait a short time and then repeat this process until oil emerging from screw is free of air bubbles. |
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e. Tighten the bleed screw with the brake pedal depressed and repeat for the l. h. side. f. Check if level on the tank is correct otherwise fill up. 11. Reinstall the rear wheels. Tighten the nut to the correct torque. 12. Reinstall filler cap, and sockets. 13. Reinstall battery ground cable. IMPORTANT: Before using the tractor check the brakes for correct operation. Capacity of oil brake tank: 0.32 liter (0.09 U.S. gal) |
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