BRAKE BOOSTER Operating Check I Depress brake pedal several times with engine off, then check that there is not change in pedal stroke. 0 Depress brake pedal, then start engine. If pedal goes down slightly, operation is normal. Airtight Check 0 Start engine, then stop it in one or two minutes. Depress brake pedal several times slowly. If pedal goes further down the first time, but gradually rises after second or third time, the booster is airtight. o Depress brake pedal while engine is running, then stop it with pedal depressed. If there is no change in pedal stroke after holding pedal for thirty seconds, brake booster is airtight. Removal and Installation PJs-22 l ll , l 1:): _ f] ?:8'31.1,5.a ea) KQSX (0,5 - LI, 5.5mm :2] N m ikgrm mm SERTYJ Inspection HOSES AND CONNECTORS I Check condition of vacuum hoses and con- nections. 0 Check vacuum hoses and check valve for air tightness, / (a @mca::ff p SMA157A CHECK VALVE a When pressure is applied to the brake booster side of check valve and valve does not open, replace check valve with a new one. Do not apply any oil or lubricants to vacuum hose and check valve. ' Maniiold side Brake banner me saaaas OUTPUT ROD LENGTH Output rod length A does not require adjustment. seems . '