Piper Dakota - Brake System 1 D7; Draining Brake System 1 C7; Filling Brake Cylinder Reservoir 1 C7; Inflating Oleo Struts 1 D7

INFLATING OLEO STRUTS
Prior to engine operation, air or nitrogen pressure in each landing gear assembly must be adjusted to either
applicable pressure or visible piston extension (pressure servicing method is preferred).
l. Ensure oleo strut has sufficient fluid and torque link is properly connected.
2. Attach strut pump to air valve and inflate oleo strut.
a. Inflate strut until correct length of piston is exposed with normal static load.
b. If pressure servicing method is used, pistons must be fully extended.
(l) Inflate struts to 250 +/- 25 psi.
(2) Rock airplane several times to ensure gear settles back to correct strut position.
(3) Check for valve core leakage before capping valve.
BRAKE SYSTEM
SERVICING BRAKE SYSTEM
The brake system incorporates a hydraulic fluid reservoir through which brake system is periodically
serviced. Fluid is drawn from the reservoir by brake cylinders to maintain the volume of fluid required for
maximum braking efficiency. Spongy brake pedal action is often an indication that brake fluid reservoir level
is low. Instructions for filling reservoir are given in Filling Brake Cylinder Reservoir. For repairs to any brake
system component or system bleed procedures, refer to chapter 32.
FILLING BRAKE CYLINDER RESERVOIR
Fill brake cylinder reservoir to level marked on reservoir, with MIL-H-5606 fluid:
l. Locate reservoir on left side of firewall in engine compartment.
2. Check reservoir at every 50 hour inspection and replenish as necessary.
—NOTE—
No adjustment of brakes is necessary.
3. Check brakes periodically per instructions in chapter 32.
DRAINING BRAKE SYSTEM
Drain brake system as follows:
1. Connect hose to bleeder fitting on bottom of cylinder. Place other end of line in suitable container.
2. Open bleeder. Slowly pump hand brake lever and desired brake pedal until fluid ceases to flow.
3. Clean brake system by flushing with denatured alcohol.
TIRES
SERVICING TIRES
Maintain tires at pressure specified in chapter 6.
l. Check tire pressure.
2. Examine tires for wear, cuts, bruises, and slippage on wheel.
3. Tire, tube, and wheel must be properly balanced when installed and index mark on tire must align with
index mark on tube.
12 - 24 - 00
Page - 12 - 11
Reissued: August 1, 1986
1D7
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL