Piper TURBO ARROW III User Manual

NOTE
Care should be used when attaching the forward hose (13) to the diaphragm
assembly (10) so that no strain is placed on the teflon bushing (15) and
diaphragm shaft (16), thus causing friction in movement.
c. Connect the hydraulic lines (5) and (26) to the elbows (4) and (27) of the actuator hydraulic valve (25).
NOTE
A special fitting (27) with a restriction orifice of .063 of an inch is installed
in the side of the hydraulic valve (25). Do not mistake this for a standard
AN fitting.
d. Connect the pressure (13) and static (11) hoses to the elbows (12) of the diaphragm housing (10).
Secure hoses with clamps.
e. Connect the actuator electrical leads terminal to their mating terminals and insulate. Refer to the
electrical schematic for hookup.
f. Check the actuator adjustments as given in Paragraph 6-14.
g. Install the rear seat.
6-14. CHECK FOR ADJUSTMENT OF GEAR BACK-UP EXTENDER ACTUATOR. (Refer to Figure 6-6.)
a. If diaphragm failure is suspected, note the following:
1. If the landing gear retracts or extends at too high an airspeed or will not retract at all unless the
back-up extender is placed in the override position, then the diaphragm is possible defective.
2. If it is determined that the diaphragm is defective, then remove the Back-Up Extender per
instructions given in paragraph 6-12 and install Piper Kit No. 761 138V, Back-Up Gear Extender
Diaphragm Replacement. Instructions for installing the diaphragm are included in the kit.
3. Following completion of Replacement Kit, reinstall the extender unit in the aircraft and
functionally test and adjust as outlined below and in paragraph 6-14a.
b. Adjustment of the gear back-up extender actuator is preset to allow the hydraulic valve (25) of the
actuator to open when the airspeed is reduced below 103 KIAS for PA-28R-201T or 95 KIAS for PA-
28R-201 with the engine power OFF. This adjustment is accomplished by setting the tension of spring
(24) on the actuator with adjustment screw (2) as follows:
NOTE
The airspeed at which the hydraulic valve of the actuator opens was preset
at the factory under ideal conditions. There should be some variations at
different altitudes and atmosphere conditions.
CAUTION
The micro switch (21) and eccentric bolt (35) must not be adjusted. These
components are set at the factory under specific conditions, with the use of
special set-up equipment.
Revised: 2/13/89
1H23
* CHEROKEE ARROW III SERVICE MANUAL
HYDRAULIC SYSTEM

Piper TURBO ARROW III Specifications

General

Manufacturer	Piper Aircraft
Model	Turbo Arrow III
Horsepower	200 hp
Max Takeoff Weight	2, 900 lbs
Fuel Capacity	72 gallons
Service Ceiling	20, 000 ft
Seating Capacity	4
Type	Single-engine piston
Propeller	Constant-speed
Landing Distance	1, 200 ft