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POWER BOOSTER CHECK VALVE TEST 1. Disconnect vacuum hose from check valve (1). 2. Remove check valve (1) and valve seal (2) from booster (3). 3. Use a hand operated vacuum pump for test. 4. Apply 15-20 inches vacuum at large end of check valve. 5. Plug off the small end to prevent vacuum leakage. 6. Vacuum should hold steady. If gauge on pump indi- cates vacuum loss, check valve is faulty and STANDARD PROCEDURE MASTER CYLINDER BLEEDING A new master cylinder should be bled before installa- 1. Mount master cylinder in vise. 2. Attach bleed tubes to cylinder outlet ports (1). Then position each tube end into reservoir (2). 3. Fill reservoir with fresh brake fluid. 4. Press cylinder pistons inward with wood dowel. Then release pistons and allow them to return HB BRAKES - BASE 5 - 39 |