Nissan Maxima Service and Repair Manual: Basic inspection
- Front disc brake
- Rear disc brake
- Brake booster
- Vacuum lines
- Brake tube and hose
BRAKE PAD BRAKE PAD : Inspection of Pad PAD WEAR Check pad thickness from the inspection hole on cylinder body. Check using a scale if necessary DISC ROTOR DISC ROTOR : Inspection of Rotor VISUAL Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace as necessary. RUNOUT Attach disc rotor to wheel hub using wheel nuts (at two or more positions). Inspect runout using a dial gauge placed at 10 mm (0.39 in) inside the disc edge. NOTE: Before measuring, make sure that wheel bearing axial end play is within the specification. Refer to FAX-5, "Inspection". When runout exceeds limit value, displace mounting positions of disc rotor by one hole.
BRAKE PAD BRAKE PAD : Inspection of Pad PAD WEAR Check pad thickness from the inspection hole on cylinder body. Check using a scale if necessary DISC ROTOR DISC ROTOR : Inspection of Rotor VISUAL Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace if necessary. RUNOUT Attach disc rotor to wheel hub using wheel nuts (at two or more positions). Inspect runout using dial gauge placed at 10 mm (0.39 in) inside disc edge. NOTE: Before measuring, make sure that wheel bearing axial end play is within the specification. Refer to RAX-5, "Inspection". When runout exceeds limit value, displace mounting positions of disc rotor by one hole.
Inspection OPERATION With engine stopped, change vacuum to atmospheric pressure by depressing brake pedal several times. Then with brake pedal fully depressed, start engine and when vacuum pressure reaches the standard, make sure that clearance between brake pedal and floor panel decreases. AIR TIGHT Run engine at idle for approximately 1 minute, and stop it after applying vacuum to booster. Depress brake pedal normally to change vacuum to atmospheric pressure. Make sure that distance at intervals of 5 seconds between brake pedal and floor panel gradually increases. Depress brake pedal while engine is running, and stop engine with pedal depressed.
Inspection VISUAL INSPECTION Check for improper assembly, damage and deterioration. Replace as necessary. CHECK VALVE INSPECTION Airtightness Inspection Use a suitable tool to check the built-in check valve. Replace the vacuum hose with the built-in check valve as an assembly if the vacuum hose is out of specification BRAKE MASTER CYLINDER Inspection LEAK INSPECTION Check for leaks at master cylinder to brake booster attachment point, reservoir tank, and brake tube connections.
Hydraulic Circuit Actuator Master cylinder Brake booster Connector Union bolt 18.2 N*m (1.9 kg-m, 13 ft-lb) Flare nut M12 22.1 N*m (2.3 kg-m, 16 ft-lb) Flare nut M10 16.2 N*m (1.7 kg-m, 12 ft-lb) CAUTION: All hoses and piping (tubes) must be free from excessive bending, twisting and pulling. Make sure there is no interference with other parts when turning the steering wheel both clockwise and counterclockwise. The brake piping is an important safety part. If a brake fluid leak is detected, always disassemble the parts. Replace applicable part with a new one, if necessary. Be careful not to splash brake fluid on painted areas; it may cause paint damage.
