1942 - 1947 Chevrolet Shop Manual



	*1-25*

	to be removed in the brushing operation. This operation should be repeated several times—in each instance using a new clean area of the cloth. 5. Immerse a new cloth in cleaner, wring out thoroughly, open and allow to evaporate until barely damp. Apply increased pressure and rub soiled area in a backward and forward motion. The cleaning cloth should be reversed several times in this operation. 6. Immerse third cloth, wring out, allow evaporation and apply to both the soiled area and the area surrounding it, using a light, brisk motion. 7. Repeat brushing operation. 8. If a cleaning ring should form, the entire area of the assembly being cleaned should be thoroughly brushed and gone over lightly with the solvent. Safety Precautions for Cleaning Fabrics 1. Do not use as a cleaning solvent any gasoline which is colored or which contains tetraethyl lead. 2. Do not use bleaches or reducing agents such as the following, inasmuch as their use tends to weaken the fabric and change or bleach the color of the goods: Chloride of lime, Javelle water. Hydrogen peroxide, Sodium hydrosul-phite. Potassium permanganate, Chlorine or chlorine water, Sulphurous acid (sulphur dioxide), Sodium thiosulphate (Photographers' hypo). 3. Carbon tetrachloride is non-inflammable. Most other types of cleaning solvents are inflammable, and care must be exercised in handling them. 4. Do not permit cleaning solvents to come in contact with the skin on the upper arms or the body. Such contacts sometimes produce local irritation, which is unpleasant, if not serious. 5. Do not breathe the fumes of cleaning solvents. since they are usually toxic in large quantities. 6. Keep oxalic acid out of reach of children and away from the mouth. It is a deadly poison. GENERAL INSTRUCTIONS (For the Removal of Specific Types of Stains) (Flat Cloths and Pile Fabrics) Some certain types of stains and spots possibly cannot be successfully removed from upholstery by the methods previously outlined. These stains could be classified as "emergency" ones — blood, paint, ink, etc., being typical of this classification. For such, and other stains, specific instructions are outlined in the following but, it must be expected that in some cases, particularly where water	treatment is specified, that discoloration and finish disturbance may occur. Battery Acids Apply ordinary household ammonia water by means of a brush or cloth to the spot, so that it will be well saturated. Permit the ammonia water to remain on the spot about a minute, so that it will have ample time to neutralize the acid. Rinse the spot by rubbing with a clean cloth thoroughly wet with cold water. This treatment will suffice for old and new stains. However, no type of treatment will repair damaged fibres which result from the action of the acids on the fibres, particularly after the spot has dried. It is therefore imperative that the spot be treated as quickly as possible. If so much as a day elapses between the time the acid was spilled on the cloth and the time of its treatment with ammonia, a hole will probably have formed in the material. Blood Rub the stain with a clean cloth wet with cold water until no more of the stain will come out. Care must be taken so that clean portions of cloth are being used for rubbing the stain. This treatment should remove all of the stain. If not, then apply a little household ammonia water to the stain, by means of a cloth or brush. After a lapse of about one minute, continue to rub the stain with a clean wet cloth. If the stain remains after the use of water and ammonia, a thick paste of corn starch and cold water may be applied to the stained area. Allow the paste to remain until it has dried and absorbed the stain. Then pick off the dry starch. Brush the surface to remove starch particles that remain. For bad stains, several applications of starch paste will be necessary. Hot water or soap and water must not be used on blood stains, as their use will set the stain, thereby making its removal practically impossible. Candy Candy stains other than candy containing chocolate can be removed by rubbing with a cloth wet with very hot water. If not then completely removed, sponging the stain (after drying) with a cloth wet with carbon tetrachloride will usually remove it. Chewing Gum Moisten the gum with carbon tetrachloride and work the gum off the fabric with a dull knife, while still moist. Enamel, Paint and Lacquer An excellent method for removing stains of this type is as follows: If the stain is not dry, remove as