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... SPRITE BRAKING SYSTEM T^HE Lockheed hydraulic braking system employs twoleading shoe brakes at the front, with a dual purpose expander unit on the rear brake shoes, enabling them to be operated hydraulically or mechanically. A pullup type handbrake operates directly on the mechanical linkage to the rear wheels, whilst the foot brake operates on all four wheels. Adjustment: The brakes may require adjustment approximately every 1,000 miles (1,600 km.) to maintain them at maximum efficiency. Front Brakes: Apply the handbrake, jack up one front road wheel until it is free to revolve. Spin the wheel in a forward direction and apply the footbrake firmly to centralize the shoes in the drum. Remove the road wheel cap and align the hole in the wheel and the brake drum with the screwdriver slot on one wheel cylinder. Insert a screwdriver and turn in a clockwise direction until the brake shoe bears hard against the drum. Back off the adjustment the least possible amount (usually two or three clicks) until the wheel is free to revolve. Repeat these operations at the other wheel cylinder. Replace the road wheel cap. Adjust the opposite front wheel brakes in a similar manner. Rear Brakes: Place chocks under the front wheels, release the handbrake and jack up one rear wheel until it is free to revolve. Remove the road wheel cap and proceed as for the ...
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