
2-87. REPAIRS. Removal of spots, sags, curtains, overspray and other blemishes which appear in the finished
paint film can be removed by the most suitable of the following methods:
a. Remove the blemish using 400 to 600 grit "wet or dry" abrasive paper. Clean and dry thoroughly. If
necessary, spray with the paint manufacturer's recommended thinner or thinned finish to blend.
b. Undried overspray may be leveled by spraying with a light coat of paint manufacturer's recommended
thinner.
c. Rub with a fine grit rubbing compound manufactured for use on automotive finishes. Types containing
wax shall not be used unless the wax is removed using a suitable solvent such as gasoline, turpentine, or soap
solution. Water soluble types are preferred. After rubbing, spray with the paint manufacturer's thinner or thinned
finish to blend, if required.
2-88. REMOVAL OF CHERRYLOCK RIVETS. To remove cherrylock rivet:
a. File head flat.
b. Centerpunch rivet head.
c. In thick material, remove the lock by driving out the rivet stem using a tapered steel drift pin. (See view 1)
— NOTE —
Do not drill completely through the rivet sleeve to remove a rivet, as this will tend to enlarge the hole.
d. In thin material, use a small center drill to provide a guide for a larger drill on top of the rivet stem and the
tapered position of of the stem be drilled away to destroy the lock. (See View 2.)
e. Remove the remainder of the locking collar out of the rivet head by prying it loose with the drift pin. (See
1
2
3
4
5
6
DRIFT PIN
SMALL CENTER DRILL
B361
Figure 2-12. Cherrylock Rivet Removal
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY 28, 1989
HANDLING AND SERV I C I N G
1C17