OM4016 08/07 Maintenance - Section 4 Lubrication and Service Page 4-23 BRAKE BLEEDING Start the engine and wait for the air gauge to enter the green range, then bleed the air from the circuit as follows. Rear brakes 1. Bleed the air at the slack adjuster end first. Depress the brake pedal, then loosen air bleed plugs (1 or 2, Figure 4-13) 3/4 turns. Tighten the plug again, then release the pedal. 2. Continue this procedure until no more bubbles come out from the air bleed plug hole, then bleed the air from the wheel plug (1, Figure 4- 14). FIGURE 4-13. SLACK ADJUSTER 1. Air Bleed Plug 2. Air Bleed Plug 3. Continue this procedure until no more bubbles come out from the air bleed plug. 4.
After bleeding the air, close the plug and fit the cap. Front brakes 1. The oil tank is separately installed, so always check the oil level while bleeding the air to avoid running out of oil. 2. Depress the brake pedal, then loosen air bleed plug (1, Figure 4-15) 3/4 turn. Tighten the plug again, then release the pedal. FIGURE 4-14. BRAKE HOUSING BLEED PLUG 1. Air Bleed Plug 2. Brake Housing 3. Continue this procedure until no more bubbles come out from the air bleed plug. FIGURE 4-15. FRONT BRAKE BLEED PLUGS 1. Air Bleed Plugs 2. Brake Line