PIPER SENECA II SERVICE MANUAL
VI - HYDRAULIC SYSTEM 01/01/09
1I14F
e. Cleaning, Inspecting, or Replacing Hydraulic Fluid Reservoir.
See “In Aircraft,” above, to remove/install pump in aircraft.
1. Disassembly.
CA
UTION: DO NOT DISASSEMBLE PUMP ASSEMBLY FROM ADAPTER ASSEMBLY.
DAMAGE TO VALVES AND PRESSURE SETTINGS, WHICH ARE NON-
ADJUSTABLE, WILL OCCUR.
a. Remove mounting bracket from pump as described in “Replacing Entire Pump,” above.
b. Remove screw and O-ring securing the reservoir to the adapter assembly.
c. Remove reservoir and reservoir seal.
d. When replacing reservoir, remove the cushion pad. It will have to be bonded to the new
reservoir base using Scotch Grip 2210 or Contact Adhesive B-10161 rubber cement.
2. Assembly.
a. Locate the cushion pad and bond it to the bottom surface of the reservoir using Scotch
Grip 2210, or Contact Adhesive B-10161 rubber cement.
b. Position the reservoir seal between the reservoir and the adapter assembly.
c. Locate the O-ring and bolt that secures the reservoir to the pump-adapter assembly and
apply a light coating of Titeseal No. 3 in back of first two bolt threads.
d. Position the O-ring on the bolt, and install it through the reservoir and into the pump-
adapter securing the reservoir.
e. Tighten this bolt to a torque value of 40 - 50 inch pounds.
f. Install pump on mounting bracket as described in “Replacing Entire Pump,” above.
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