Copyright Goodheart-Willcox Co., Inc. 40 Section 2 Introduction to Masonry 3.2.2 Material Handling Equipment Wheelbarrows come in many shapes, sizes, and wheel configurations. Figure 3‑36A shows a wheelbar- row that has wooden handles with a metal frame. It has one wheel attached to the frame and arms. This device is used to move sand, gravel, soil, mortar, con- crete or a number of other products around the jobsite. Figure 3‑36B shows a wheelbarrow with two wheels. A wheelbarrow with two wheels makes it easier to maneuver around an unlevel jobsite. This device has a metal frame with wood handles. Figure 3‑37 shows a track driven power buggy that has a capacity of carrying 14 cu ft of material. Similar to a wheelbarrow, this device is powered by a gasoline engine that can carry two to three times the amount a wheelbarrow can. Buggies are available with wheels or tracks. Buggies have the ability to lift and dump ma- terials more advanced machines can lift and turn the bucket to dump the load more precisely. The opera- tor stands on a platform that is attached to the back of the buggy. It is easier for a track buggy to operate on surfaces that are wet or when carrying heavy loads up steep hills. Buggies have made it easier for construction workers to transport materials around the jobsite. Allen Engineering Corporation Figure 3‑35. Vibratory plate compactor operates on a 3.5 hp. gasoline engine. This model vibrates at 5,540 vibrations per minute (VPM) with a plate size of approximately 20″ × 14″. Allen Engineering Corporation Figure 3‑37. Model AT 14S track buggy has a steel bucket that can be lifted and turned to dump the contents. This buggy has a 20 hp gasoline engine. Work speed of the buggy is 4 MPH and 6 MPH travel speed. The maximum payload of the AT 14S is 1540 lb. A Timothy L. Andera Figure 3‑36. Wheelbarrows. A—This wheelbarrow has a 7 cu ft metal tray (bin) capacity. The wheels are air-filled. The tray has been powder coated, similar to paint but will withstand construction practices better than normal paint. B— This wheelbarrow has a 7 cu ft capacity with a plastic composite tray (bin). The wheels are air-filled. The plastic composite tray will not rust or bend. B