MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Date
MAR 2017
Rev Date
Page
17
9. Remove actuator from aircraft.
DISASSEMBLY – EATON ACTUATOR
1. Remove two nuts, (1) (Fig. 32- 16) that retain the
cable support bracket (2) and remove bracket and dis-
engage cable intact from actuator body and disengage
arm.
2. To avoid stripping screw heads, use impact screw-
driver to break Loctite thread seals and remove two
long screws (3) & two short screws (4).
3. With a razor or similar tool, slice through identifica-
tion plate and remove recoiler assembly (5).
4. Remove input gear assembly, (6), from clutch
housing, (8), by rotating gear and pulling with slight to
moderate pressure.
-NOTE-
Care should be taken not to allow bearings or
shims to drop out of clutch housing mount as-
sembly.
5. Remove two screws, (7), and remove housing, (8),
spring, (9), and gear assembly, (10) from actuator body.
6. Remove clutch (no- back) spring, (9), from hous-
ing using gear assembly, (6), as removal tool. Insert,
(6), into spring from flanged end of housing; rotate gear
CCW and pull slightly. DO NOT rotate CW. Spring can
be damaged.
-CAUTION-
Use extreme care to prevent ball bearing from
dropping out of recoiler assembly; avoid dam-
age to gear and do not allow dirt to enter clutch
housing bore.
7. After disassembly, clean clutch gear thoroughly.
Discard removed screws (3 & 4). Discard old clutch
(no- back) spring (9).
8. See 32- 30- 06 procedure prior to reassembly for
additional maintenance, if necessary.
RE- ASSEMBLY
1. Lubricate gear and new clutch spring thoroughly
with lube (MIL- G- 81322) poly- lube.
2. Using gear assembly (6) as insertion tool, place
new clutch spring on cam end of assembly and turning
CCW, install spring into clutch housing to about mid-
point. DO NOT FORCE SPRING. While rotating CCW,
insert clutch spring into bore until fully seated.
3. Withdraw gear assembly (6).
-NOTE-
Be sure spring is all the way in and seated
around cam.
4. Insert clutch gear assembly (10) into clutch spring
and housing from cylindrical end of housing, insuring
that spring tangs fit into recesses in cam.
-NOTE-
When clutch spring is properly seated, large in-
put gear (6) can be rotated in either direction and
small output gear (10) will follow rotation direc-
tion.
5. Lubricate output gear teeth (10) with
MIL- G- 81322, and install clutch housing, gear and
spring assembly in actuator body by mating gear (10) to
output gear train assembly. To engage gear teeth and
fully seat hub into bearing, rotation of gear assembly
may be required.
6. Re- install screws (7) to secure clutch housing into
actuator body. Use Loctite, Grade A, on threads.
7. Re- insert input gear assembly (6) into clutch
housing and clutch spring assembly until fully seated.
Lubricate gear teeth (6) with MIL- G- 81322 poly- lube.
8. Disassemble Clutch Housing Mount Assembly
(5A) from recoiler assembly (5). DO NOT ALLOW
BEARING OR SHIMS TO DROP OUT OF CLUTCH
HOUSING MOUNT ASSEMBLY.
9. Normally the existing shims (16) already installed
behind bearing (15) will be correct for the new clutch
spring. However, due to manufacturing tolerances, it
may be necessary to change shim thickness for proper
spring adjustment.
10. Three different shim thicknesses are available
from EATON:
P/N. 110117- 1 (.003 in. thk.)
P/N. 110117- 2 (.005 in. thk.)
P/N. 110117- 3 (.010 in. thk.)
Any combination of these shim thicknesses are al-
lowed to obtain the correct rotational torque (inch
pounds of torque) of input gear shaft after clutch hous-
ing mount assembly is installed (minus recoiler assy
portion) and torqued into place.
-NOTE-
Clutch assembly can now be verified for proper
installation by rotating input gear (6) both CW &
CCW. Gears should turn with moderate friction to
hand torque. Observe that actuator output screw
jack rotates in BOTH directions. In some
instances, the new clutch (no- back) spring
“CHATTERS” during electrical extension or re-
traction cycle. Proper shimming of the “no- back”
clutch housing assembly, items 6, 7, 8, 9, & 10
and bearing 15 (Fig. 32- 16) with shims 16 is nec-
essary to eliminate the chatter.
11. The rotational torque used by EATON for new ac-
tuators is no more than 4.0 inch pounds of consistent,
running, rotational torque in both the CCW and CW di-
rections. If this recommended rotational torque is not
obtained on the first assembly attempt, the clutch hous-
ing mount assembly will require removal and shims
must be added or removed until the proper rotational
torque is obtained. A special “socket” can be made to
32-30-05
To Next Page
Loading...
