Surface Preparation For Pressure Sensitive Safety Walk; Application Of Pressure Sensitive Safety Walk; Radome Boot - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
4-107. SURFACE PREPARATION FOR PRESSURE SENSITIVE SAFETY WALK. Theareastowhich
the pressure sensitive safety walk is to be installed must be free from all contaminates and no moisture present.
If liquid safety walk is installed the area must be prepared as follows:
a. Area must be masked off to protect painted surfaces.
b. Apply suitable stripper MEK Federal Spec. TT-M-261. U.S. Rubber No. 3339 to wingwalk
compound. As compound softens remove by using putty knife or other suitable tool.
c. Area must be clean and dry prior to painting.
d. Prime and paint area.
NOTE
Newly painted surfaces. shall be allowed to dry for 2.5 hours
minimum prior to the application of the safety walk.
4-108. APPLICATION OF PRESSURE SENSITIVE SAFETY WALK. Wipe area with a clean dry cloth
to insure that no moisture remains on surface. Do not apply when surface temperature is below 50
°
F. Apply
pressure sensitive safety walk as follows:
a.
Peel back the full width of the protective liner approximately 2 inches from the leading edge of the
safety walk.
b. Apply the safety walk to the wing area. begin at the leading edge. insure proper alignment and
position from wing lap.
c.
Remove the remaining protective liner as the safety walk is being applied from front to back of
wing area.
d.
Roll firmly with a long handled cylindrical brush in both lengthwise directions. Make sure all edges
adhere to the
wing skin.
e.
Install and rivet leading edge retainer.
4-109. RADOME BOOT.
4-110. LIST OF MATERIALS.
a.
Radome Boot - 3M No. SJ-8665 FP-23.
h. Marking pen.
c. Sponge or spray bottle.
d. Isopropyl alcohol.
e. Wetting solution: 25% isopropyl alcohol. 75%, water. plus I teaspoon of liquid detergent (Ivory.
Jo ) per gallon of solution.
f. 3M PA-I plastic squeeze or equivalent.
g.
Masking tape - 1/" wide.
h. Industrial razor blade knife.
Revised: 10/5/83
STRICTIRES