Mooney M20TN, Руководство по обслуживанию и ремонту

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MOONEY AVIATION COMPANY, INC.
M20TN SERVICE & MAINTENANCE MANUAL
Date
2006
Rev Date
Page 5
56--00--00 -- GENERAL
The windshield for the M20TN is .187 inch thick acrylic,
heat formed to contour. The pilot’s side window is also
.187 inch thick acrylic with a hole cut out to accommo-
date the .312 inch thick storm window. The storm win-
dow is milled to fit the hole and to be flush with outside
of pilot’s window surface when closed. The cabin door
and two rear side windows are .187 inch thick acrylic.
All windows are single pane windows.
All windows are heated to approximately 300
o
F and
placed on a mold to cool while maintaining correct
shape.
The windows are tinted for visual comfort, ultra--violet
filtration and cooling effect for cabin (material tint op-
tions by customer request).
The windows are all sealed to outside skin with PR1428
(B), or equivalent sealant (reference Mooney Spec. 20,
Section XII). Retainers and clips are used around win-
dow frame to hold windows in place.
1
2
3
4
5
6
7
8
R56--1
2
4
WINDSHIELD INSTALLATION
FIGURE 56--1
56--00--01 -- CLEANING ACRYLIC
A commercial cleaning solution, manufactured for
acrylic, may be used to clean routine grit and grime
from windows. Follow instructions on commercial
cleaner used.
If no commercial cleaner is available, these procedures
should be followed:
1. Flush windows with water prior to wiping with a
clean, soft, cloth, soaked in kerosene.
-- CAUTION --
Never wipe windows when dry.
2. Flush with water after cleaning with kerosene.
-- CAUTION --
Never use gasoline, benzene, carbon tetrachlo-
ride, acetone, lacquer thinner, deicer fluid, house
hold cleaning fluid or any other questionable
fluid to clean acrylic windows. These solvents
will soften or craze the surface.
NOTE:
Remove fine scratches with fine automotive
acrylic rubbing and polishing compounds. Fol-
low instructions provided with product.
56--20--00 -- WINDSHIELD AND CABIN WINDOWS
The removal and installation of windshield and win-
dows are accomplished in the following paragraphs.
56--21--00 -- WINDSHIELD
56--21--01 -- WINDSHIELD -- REMOVAL
The aluminum retainer (1) at bottom of windshield (2)
must be removed by drilling out rivets attaching it to
cowl deck (3) (Figure 56--1).
A putty knife or thin aluminum strip will be necessary to
work underneath top skin (4) and side post skin (5) to
break sealant bond between acrylic and skins.
-- CAUTION --
Exercise care during this operation to avoid
scratching acrylic. Considerable effort may be
required to break the bond.
Carefully pull windshield away from its location starting
at lower portion and work it loose as sealant bond is
broken around edge of acrylic.
After windshield is removed, all residual sealant must
be removed prior to installation of replacement wind-
shield. Careful scraping with putty knife and careful ap-
plication of methyl ethyl ketone (M.E.K.) will assist in re-
moving excess sealant.
56--21--02 -- WINDSHIELD--INSTALLATION
When old sealant is removed, brush M.E.K. or equiva-
lent cleaning solvent, in cavity (8) where new wind-
shield will be located (Figure 56--1).
NOTE:
Exercise care with application of these solvents.
Damage may result if drops of solvents come in
contact with either exterior paint, interior trim or
acrylic surfaces.
Trial fit new windshield to insure proper nesting in wind-
shield retaining cavity.
Apply sealant, PR1428 (B) or equivalent (reference
Mooney Spec. 20, Section XII), into cavity (8) until
approximately half filled. Apply a bead of sealant along
recessed joggle (6) of cowl deck (3) (Figure 56--1).
The new windshield being forced into cavity between
outer skin (4) and interior retainer (7) will extrude ex-
cess sealant. After windshield is in place wipe excess
sealant off with a damp clean cloth.
56--00--00