MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Page
Date
7
MAR 2017
Rev Date
red oil stops dripping. Replace gasket with a new on the
frame surface to be mounted to the air box assembly.
7. Before re- installing filter, inspect filter housing for
debris. Remove any debris found.
8. Re- install air filter. Make sure the air filter assem-
bly is properly seated and is mounted securely to the
filter air box assembly. Make sure of proper sealing and
security.
9. Re- install engine cowling.
-NOTE-
Do not use gasoline, jet fuel, or caustic cleaning
solutions or shop solvents. Use only FAA ap-
proved Challenger cleaning solution in Challeng-
er Re-charger Kit P/N CP-99-5050. Do not use
steam cleaning equipment or any other cleaning
devices. When drying the filter after cleaning, let
the filter dry naturally. Pressurized equipment
will strip the cotton of critical microfilaments. Do
not use compressed air, open flames or heating
devices of any kind. When recharging the filter
with oil, use only FAA approved Challenger Re-
charger Oil in Re-charger Kit P/N CP-99-5050. The
oil is the same oil applied at the factory during
the manufacturing process. Do not use transmis-
sion fluid, motor oil, or any other lightweight oil
of any kind or any products containing petroleum
products.
DUCT ASSY
AIR FILTER
CAN ASSY
WASHER
NAS1149F0332P
BOLT
AN3- 4A
INDUCTION AIR FILTER
FIGURE 12- 1
12-20-02 - BATTERIES
Current production aircraft utilize low resistance, valve
regulated, sealed lead acid batteries or, wet cell type
batteries.
Sealed lead acid batteries are factory permanently
sealed and require no additional electrolyte or water.
Service wet cell batteries with distilled water to main-
tain electrolyte above plates. After adding water in
freezing weather, charge battery long enough to mix
electrolyte and water. Keep battery electrolyte above a
specific gravity of 1.225 to avoid freezing.
To service wet cell battery(ies):
1. Remove battery caps. Check electrolyte and ser-
vice battery as required.
-CAUTION-
Battery gases may be explosive.
2. Inspect battery mounting area for corrosion and
spilled electrolyte. To clean cables, terminals, mount-
ing area and battery case, use a solution of bicarbonate
of soda and clean water to neutralize corrosion and
spilled electrolyte.
-CAUTION-
When cleaning, do not allow bicarbonate of
soda to enter battery cells - permanent dam-
age will result if soda mixes with electrolyte.
3. Rinse battery with clean water. Wipe clean with a
dry cloth.
4. To retard corrosion, coat terminals with petroleum
jelly after cleaning and tightening them.
5. Inspect battery vent lines for obstruction, line
kinks, etc.
12-20-03 - TIRES AND WHEELS
Keep tires
at recommended air pressure. (Refer to
Chapter 6-00-01.
1. Check tires for wear, cuts and bruises.
2. Check valve stems for evidence of tire slippage or
pulling.
3. Check wheels for damage.
4. Check wheel bearings for condition and lubrication
(Ref. Chapter 32)
12-20-04 - BRAKE RESERVOIR
Frequently check brake reservoir for proper fluid lev
el.
See Chapter 12-20-05 for location. See Section
5-20-07 for proper fluid.
-CAUTION-
Do not fill reservoir while parking brake is
set.
Use only hydraulic fluid (red), per specification
MIL-H-5606. Do not fill reservoir higher than two inches
below filler port.
12-20-02
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