MAULE AEROSPACE TECHNOLOGY, INC.
MAINTENANCE MANUAL
FOR
MT-7-235
Rev. D
8/37
INTERIOR (Cont’d)
Textile upholstery may be cleaned using a vacuum cleaner. Grease and oil spots on the
upholstery should be treated with a spot remover or dry cleaning fluid. Do not use soap and wa-
ter on textile materials.
Vinyl upholstery may be cleaned using soft whisk broom or suds of any mild soap (castile
or olive oil base) in lukewarm water. Use water sparingly as the upholstery otherwise requires a
long time to dry if water trickles through the seam stitches.
For best results, stains, especially those caused by grease or paint, should be removed
from upholstery as soon as possible or they may become “set”" and hard or impossible to re-
move. "Set" stains should be removed carefully with a clean cloth dampened in denatured alco-
hol. Stains caused by shoe polish can best be removed with turpentine. However, such clean-
ing agents are liable to affect the dust-repellent finish of the vinyl if used in excess of the actual
requirements. Never use volatile solvents such as lacquer thinner, acetone, etc. on upholstery.
The cleaning should be completed by wiping the surface of the vinyl dry with a clean
cloth, particularly in the seam. No attempt should be made to apply preservatives such as wax,
polish, or varnishes, as these will not be absorbed by vinyl, but will merely collect dust. There
are protective treatments made especially for vinyl, which are commercially available and quite
satisfactory.
Leather upholstery should be cleaned by leather cleaning methods using leather-cleaning
products.
