m. Put the gear selector switch in the down position, and ensure that the gear has extended, the pump has
stopped running, and the three green safe lights are illuminated.
n. Return the flap selector to the fill down position, and note that the flaps operate to the full down
position, and the warning horn does not sound.
o. Now return the flap selector to the full up position, and observe that the flaps operate to the full up
position, and the warning horn does not sound.
p. Turn the Master Switch OFF.
CAUTION
Prior to removing the airplane from jacks, turn the master switch on and
determine that ALL THREE green lights are illuminated. This will ensure
that the landing gear is down and locked.
6-30. SERVICING HYDRAULIC PUMP/RESERVOIR. The fluid level of the reservoir of the combination
pump and reservoir should be checked every 50 hours by viewing the fluid through the filler plug hole in the
Prestolite and by checking the dipstick indication on the Oildyne. Access to the pump is through the access
panel in the aft wall of the baggage compartment.
Should the fluid level be low, add fluid, MIL-H-5605A, and return the filler plug on the Prestolite pump
and dipstick on the Oildyne. After tightening the dipstick on the Oildyne, loosen it 1 In turns to allow the
reservoir to vent.
CAUTION
The Prestolite pump has a small hole located under the vent screw head.
Retain 1/64 inch clearance between the screw head and the small vent hole.
The Oildyne pump must have the dipstick loosened 1 1/2 turns to properly
vent it.
Revised: 2/13/89
1I9
* CHEROKEE ARROW III SERVICE MANUAL
HYDRAULIC SYSTEM
Summary of Contents for ARROW III
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