SERVICE MANUAL & ICA
8750 AMPHIBIAN/SEAPLANE FLOATS ON CESSNA 208/208B
Revision C
Page 55 of 104
P/N 1005723 Doc. No. W8750-24-01
4.2 MAIN GEAR ASSEMBLY SETUP
AND ADJUSTMENT (CONT.)
8.
NOTE
: The actuator should not need
adjustment while in service. The only time
adjustment should be necessary is when the
actuator is disassembled in order to replace
internal seals. Assuming this has been done
the remaining steps are for re-rigging the
actuator to be installed back in the float.
9.
With the actuator assembled and removed
from float, attach Wipaire Tool 1004800 to
the actuator, taking note that the
FORWARD arrow is pointing forward on
the actuator. Use the 5/16-18 bolts to attach
the tool to the actuator.
10.
Rotate the actuator shaft fully to the DOWN
position. If the two keyway slots do not line
up when the actuators internal piston
contacts the “DOWN” adjustment set screw
(Item 8), the actuator needs adjustment. It
may be necessary to use one of the actuator
arms removed in step 5 to help rotate the
actuator.
11.
To adjust the “DOWN” position, loosen the
“DOWN” adjustment screw jamb nut (Item
9) and back off the adjustment screw.
12.
Align the keyway on the actuator shaft (Item
4) with the keyway on
Wipaire Tool
1004800. Insert the parallel key
removed in
step 5 into the aligned keyways.
13.
Thread in the Down Adjustment setscrew
until light contact is made between the
setscrew and the actuators internal piston.
Do not over tighten as the actuator cannot
rotate with Wipaire Tool 1004800 and the
key installed. Over tightening
can damage
the face of the actuator piston.
14.
With setscrew positioned against the piston
face, tighten the adjustment screw jamb nut
(Item 9).
15.
Repeat steps 10 - 14 for setting the UP
position setscrew. (See figure 4-5)
16.
Install actuator in float by reversing steps
thru 7. Safety wire 5/16-18 bolts when
installed. Outer face of actuator arms should
be flush to actuator shaft. It is
recommended to leave the spring
disconnected during gear rigging.
