Piper Arrow IV Turbo Maintenance Manual page 343

INSTALLATION OF HYDRAULIC PUMP.
1. Install the rubber shock mounts through the mounting holes of the pump. Insert a bushing through the
holes of each shock mount.
2. Position the pump on its mounting flange. Install mounting bolt with washer and tighten. (Refer to
Figure 29-5.)
3. Connect the hydraulic lines to the pump.
4. Connect the pump electrical leads. Green wire to outboard relay, blue wire to inboard relay and black
wire to ground on battery shelf.
5. Check fluid level in pump. Fill per instructions given in Chapter 12.
6. With the airplane on jacks, operate the pump to purge the hydraulic system of air, and check for leaks.
After operation, recheck fluid level.
GEAR BACK-UP EXTENDER ACTUATOR ASSEMBLY.
REMOVAL OF GEAR BACK-UP EXTENDER ACTUATOR ASSEMBLY. (Refer to Figure 29-8.)
The back-up extender actuator is located under the rear seat. To reach the actuator, remove the rear seats.
1. Disconnect the actuator electrical leads at the quick disconnect terminals.
2. Disconnect the pressure and static hoses from the elbows of the diaphragm housing by releasing
clamps and sliding the hoses from their elbows. The hoses should be tagged for ease of reassembly.
3. Place a shop cloth under the actuator hydraulic valve to absorb fluid, and then disconnect the hydraulic
lines from the elbows of the hydraulic valve. Cover the lines to prevent contamination.
4. Remove the machine screws that secure the actuator base to the mounting brackets. There are two
mounting screws at the inboard side of the base and one at the outboard side of the diaphragm housing.
Remove the actuator from the mounting brackets.
INSTALLATION OF GEAR BACK-UP EXTENDER ACTUATOR ASSEMBLY. (Refer to Figure 29-8.)
1. Position the gear back-up extender actuator against its mounting brackets and install attaching machine
screws. Do not tighten screws.
With the base attached and before installing the attaching screw
through the ring of the diaphragm housing, insure that the
attaching holes in the housing and mounting bracket align
without using force. Should they misalign, it may be necessary to
reform the main fuselage mounting bracket.
To reform the main fuselage mounting bracket, an Aligning Tool
may be used. (Refer to Figure 29-7.) This tool may be fabricated
from dimensions given in Chapter 91. When proper alignment
has been accomplished, tighten the machine screws.
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
—NOTE—
2C16
29-10-10
Page 29-22
Revised: November 6, 1979