TM10-3930-660-20 12-8. SERVICE  BRAKE  HYDRAULIC  ACCUMULATOR - REPLACE/REPAIR/TEST (Cont'd) INSTALLATION Remove caps and   plugs as hoses are installed. Wipe all sealing surfaces on hydraulic components and hoses clean and dry. Apply film of clean hydraulic oil to 1. 2. 3. all seals as they are installed. IF REMOVED, INSTALL CONNECTOR (3) TO SERVICE  BRAKE  HYDRAULIC  ACCUMULATOR (1)  . BLEED SERVICE BRAKE HYDRAULIC ACCUMULATOR (1). a. b. c. d. e. Connect hose (2) to accumulator (1) at connector (3). Position accumulator (1) so it is lower than brake control valve. Start engine and allow fifteen seconds for accumulator (1) to charge. Stop  engine. Loosen hose (2) at adapter (3) and bleed accumulator (1) until pressure escapes and hydraulic oil appears. Tighten hose (2). Repeat  steps  2C through  2d  two additional times. POSITION SERVICE BRAKE HYDRAULIC ACCUMULATOR (1) ON CAB AND SECURE WITH CLAMPS (4). TESTING AND ADJUSTING SERVICE BRAKE HYDRAULIC  ACCUMULATOR  PRECHARGE  PRESSURE 1. PUMP BRAKE PEDAL TO RELIEVE SERVICE BRAKE  HYDRAULIC  ACCUMULATOR  PRESSURE With the engine stopped, pump the brake pedal until no power assistance is felt through the pedal. This will require approximately 20 depressions of the brake pedal. 12-25