Piper Navajo PA-31 Service Manual page 136

PIPER NAVAJO SERVICE MANUAL
1. Clean the window using generous amounts of water and a mild detergent.
2. Use a scratch removal kit. such as the type supplied by Micro-Surface Finishing Products
Inc.. P O Box 456. Wilton. Iowa. to remove the defective area. blend and buff.
3 Using 400A wet or dry abrasive paper wrapped around a smooth rubber block and generous
amounts of water. lightly sand oxer and around the defected area in a circular motion. extending in a diameter
equal to two or three times the defected area.
4. Continue sanding until the initial defect is no longer apparent. Thoroughly flush the area with
water
5. Using 600A wet or dry abrasive paper. repeat step 2. Continue sanding only until the hairline
scratches caused by the coarse sanding are no longer apparent. Sand a larger area than that covered by the
original sanding operation. Thoroughly wash the area.
6. Finish the repair using instructions given in Method a.
4-53. INSTALLATION OF SIDE WINDOWS. (Refer to Figure 4-10.)
a. Ascertain that the new window is cut to same dimensions as old window.
b. Apply Prestite tape number 163 or equivalent over edge of outside window where it contacts the
fuselage skin and seal with any of the following: Rubber Caulk 5000 White Sealant, Chem-Caulk 100
White Sealant or Weatherban 101 White Sealant.
c. Put outside window and retainer molding in position and secure with rivets.
d. Cement Rubatex strip to inner window using carbolene neoprene cement F-l. Air dry 15 minutes
before installing window.
e. Apply black vinyl plastic tape between inside window and retainer strip.
f. Install inner window and bolt inner retainer molding in position.
g. Apply Sil-Glyde Lubricant between edge of window molding and extrusion.
h. Install trim molding around inside of window.
4-53a. PILOT DOOR STORM
WINDOW
4-53b. REMOVAL OF PILOT DOOR STORM WINDOW.
a. Withdraw the storm window hinge pin from the hinge assembly
b Disengage the
storm
window fastener and remove the storm window
4-53c. INSTALLATION OF PILOT DOOR STORM WINDOW
a. Align the storm window hinge halves and insert the hinge pin.
b Check storm window operation and sealing.
4-53d. REPLACEMENT OF PILOT DOOR STORM WINDOW SEAL. To replace the storm window
seal; apply a thin coat of Scotch-Grip Industrial Adhesive EC 4475 (M 911-109)to outboard surface of the lip
on the storm window and to the inboard surface of the seal. Allow the surfaces to dry 15-30 seconds and then
assemble them.
Revised: 3/2/84
STRUCTURES
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