SECTION
Vlll
MOQNEY
HANDLING,
SERVlCE
&
MAINTENANCE
MODEL
M20J
GEAR
&
TIRE
SERVICE
The aircraR is equipped with 6-ply standard-brand tires and tubes. Keep the
main gear tires inflated at 30 PSI and the nose tire at
49
PSI for maximum ser-
vice life.
Proper inflation will minimize tire wear and impact damage.
\/isually
inspect the tires at preflight for cracks and ruptures, and avoid taxi speec'
that require heavy braking or fast turns. Keep the gear and exposed ge,
retraction system components free of mud and ice to avert retraction inter-
ference and binding.
The gear warning horn may be checked in flight by retarding the throttle with
the gear up. The gear horn should sound with an intermittent note at about
12
inches manifold pressure.
The
24
volt 22-ampere-hour electrical storage battery is located in the tail-
cone, aft of baggage cornpar-tment bulkhead, accessible through tailcone ac-
cess panel. Check battery fluid level every
25
FLIGHT
I-iOblRS
or each
30
DAYS
whichever comes first.
To service the
battery, remove the battery box cover and check the terminals
and connectors for corrosion. Add distilled water to each battery cell as
necessary; keep the fluid at one-quarter inch over the separator tops.
Check the fluid specific gravity for a reading of 1.265 to 1.275.
A
recharge is
necessary when the specific gravity
is
4.240
or
lower. Staa charging al four
amperes and finish at
two amperes; do not allow battery temperature to rise
above
120
degrees
F.
during recharging. Keep the battery
at
full
charge lo
prevent freezing in cold weather and to prolong service life.
NNNNNNNN
"
CAUTION
"
NNNNNNNN
The
alternator
and voltage regulator operate
only
as
a
one-polarity
system.
Be
sure
the
polarity
is
correct
when
connecting
a
charger
or
b~o~ler Bselttev.
If
corrosion is present, flush the battery box with a solurion of baking soda
and water.
Do not allow soda to enter the battery cells. Keep cable connec-
tions clean and
rightly fastened, and keep overflow lines free of obstruction.
HYDRAULIC
BRAKE
RESERVOIR
SYSTEM
The brake system hydraulic reservoir is located in the tailcone above the bat-
tery.
To service, remove the
tailcone access panel and check fluid level
every
50
HOURS
of operation. Fluid level should be no higher than two
(2)
in-
ches below the filler cap.
Use only hydraulic fluid (Wed) conforming lo
specification
MIL-H-5606.
DO
NOT FILL reservoir while parking brake
is
set.
REV.
B
6-1 2-87
8-8
ISSUED
6-2-86