Toyota Sienna Service Manual: Disassembly

1. REMOVE BRAKE MASTER LESS RESERVOIR TANK CYLINDER SUB-ASSEMBLY

(a) Using soft jaws on the vise, hold the brake master cylinder in a vise through aluminum plates.

(b) Using a screwdriver, remove the O-ring.

(c) Using SST, remove the brake tube from the brake master cylinder.

SST 09023-00101

(d) Remove the 2 nuts, 2 bolts and brake master less reservoir tank cylinder sub-assembly.

NOTICE:

• Pay due attention so as not to drop the No. 3 piston from the diameter converting unit. (if the No. 3 piston drops, it cannot be reused.)
• Pay due attention so as not to drop the No. 1 piston from the plunger master cylinder. (if the No. 1 piston drops, it cannot be reused.)

(e) Using a screwdriver, remove the 2 O-rings.

(f) Using a pin punch (φ 5 mm) and hammer, remove the pin.

(g) Remove the brake master cylinder union and 2 brake master cylinder union grommets.