Hino 600, Workshop Manual, Page: 435 / 451

PARKING BRAKE (BOSCH 12") BR07–7
(8) Remove both shoe-return springs. Use pliers, vice-grips, or a heavy
duty brake spring tool as shown in Figure 2.
(9) Remove both shoe hold-down springs. Use a brake shoe spring tool
as shown in Figure 3.
HINT
Detach the parking brake apply cable and lever return spring from the
end of the lever to allow easier access to the spring on the lever side.
NOTICE
If the brake is a Release 2 level design with a lever guide present, it
will need to be removed to provide access to the spring underneath
with the tool shown in Figure 9. Upon removal of the hold down
springs, the shoes, and the adjuster nut screw assembly will fall if not
secured by hand.
(10) Remove brake shoes from backing plate.
(11) Disassemble the adjuster nut and screw assembly for cleaning and
inspection of the threads.
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