Technical data

13773-001
32-42
Page 1
BRAKES
1. DESCRIPTION
The hydraulically operated brakes are individually activated by floor mounted toe pedals located at both
pilot stations. The brake system is designed to use MIL-H-5606 hydraulic fluid. The brake system consists
of a dual disc brake assembly on each main landing gear wheel, master cylinder for each rudder pedal,
hydraulic fluid reservoir, parking brake valve, and associated hydraulic plumbing. The brake system reser-
voir is located in the engine compartment on the upper right side of the firewall. The master cylinders are
located forward of the pilot’s rudder pedals.
A parking brake system consisting of a parking brake valve, hydraulic plumbing, and a parking brake con-
trol wire and knob. The parking brake valve is mounted forward of instrument panel on the upper left side,
adjacent to firewall.
2. MAINTENANCE PRACTICES
A. Brake System Replenishing (Refer to 12-10)
B. Brake Assembly (See Figure 32-421)
(1) Removal - Brake Assembly
WARNING:
Insure parking brake is in off position and wheels are blocked.
(a) Remove main gear fairings. (Refer to 32-10)
(b) Remove and cap hydraulic line attached to brake. Cap brake inlet fitting.
(c) Remove back plate tie bolts and washers, and remove back plate.
(d) Carefully slide brake cylinder out of torque plate.
(e) If torque plate removal is required, remove wheel/tire. (Refer to 32-40)
(f) Remove torque plate attachment bolts, nuts, and washers.
(g) Remove torque plate.
(2) Disassembly - Brake Assembly
(a) Separate assembled cylinder and torque plate.
(b) Remove back plate tie bolts and washers. Separate cylinder and back plate.
(c) Remove pressure plate by sliding over anchor pins.
(d) Remove pistons by injecting air into ports (15-20 psi) [103 to 138 kPa] maximum pressure.
CAUTION: Care should be used in handling O-rings to prevent damage.
(e) Remove O-rings from pistons.
(f) Remove bleeder fitting, screw, and cap.
(g) Remove brake lining, if necessary. (Refer to 32-42)
(3) Reassembly - Brake Assembly
Note: Thoroughly clean parts before assembling.
(a) Acquire necessary tools, equipment, and supplies.
Description P/N or Spec. Supplier Purpose
Arbor Press - Any Source Install anchor bolts.
30 Nov 2000