692 Section 5 Refinishing Copyright Goodheart-Willcox Co., Inc. A deck lid is short enough to be sprayed with strokes either parallel to the length of the vehicle or perpendicular to the length of the vehicle. Start at one edge just as you would when painting a hood or roof. A fender can be sprayed in a downdraft booth as shown in Figure 28-31. Spray the wheel well first, then go up to the top of the fender and work your way down. When the wheel arch is reached, spray the area ahead of the wheel arch. Pick up the wet edge behind the wheel arch and spray to the bottom. In a cross draft booth, start at the bottom and work up. Be careful of runs if the wheel arch sticks out more than 1″ from the fender. Spray the quarter panel in the same way as the fender. Spray the wheel well first then start at the sail panel and work down to the wheel arch. Spray the area in front of the arch, and then spray behind the arch. When painting a door, the window frame should be sprayed first. Set the spray gun pattern accordingly and watch for runs in this narrow area. The door panel should be sprayed next. Work from top to bottom. Body lines are another place where runs are common, so focus on proper technique. When painting a rocker panel or any low area such as a splash pan or valence, the painter will need to get down low, into a squat— balanced and ready. The spray gun will need to be tilted as shown in Figure 28-32. A rocker panel can be difficult to paint because of limited access. Some shops will raise the vehicle on jack stands to improve access to the rockers and lower edges of body panels. The hidden areas inside a door, such as the door- jamb, are painted when a quarter panel is replaced. To spray in these confined areas, adjust the paint fan down to a narrow spray pattern. Adjust the material knob by turning it in. If the material is not set to the fan, too much paint will be applied. Set the air pressure after the fan and material are set. If the area is tall and narrow, then spray with strokes that are parallel to the long dimension. Figure 28-33 illustrates this technique. This method will prevent the runs that may be caused by moving side to side. Another way to do this is to turn the air cap so the horns are up and down. This gives a side-to-side rather than up-and-down spray pattern. Front end collisions typically require the repair or replacement of the radiator support. When a radiator support is replaced, the new part must be painted. Painting can be difficult because of the confined area and numerous angles. A touchup spray gun works well in tight spaces. Be sure to remove as many obstruc- tions as possible before painting. Be deliberate when masking off surrounding areas. Right angles are difficult to spray even for experi- enced technicians. Figure 28-34 shows a panel with right angles. The problem is caused by a rapid buildup Goodheart-Willcox Publisher Figure 28-32. The painter must squat to spray low areas like rocker panels or this lower part of a bed side. The truck bed has been removed from the frame and placed on a dolly to give the painter improved access. Start Stop/start Switch sides here Stop Trigger on/off Trigger on/off Goodheart-Willcox Publisher Figure 28-30. This diagram shows the proper sequence to follow when painting a hood. Start at one edge and work toward the center. Switch sides and work from the center out. Goodheart-Willcox Publisher Figure 28-31. Here is how to spray a fender in a down-draft spray booth. Start at the top and work to the wheel opening. Continue to the area ahead of the wheel opening then switch to the area behind the wheel opening. 2. 1. 3.