AF120/140/160 Air Feed Drills Service Manual

Complete service and repair manual for Ingersoll AF120, AF140, and AF160 air feed drills and tappers. This workshop manual covers portable and stationary models with stroke lengths from 1.5 to 3.25 inches, including the AFT120, AFT140, and AFT160 tapper variants. The manual provides detailed maintenance and adjustment procedures essential for keeping these pneumatic tools operating at full capacity. Lubrication guidance specifies correct oil and grease types for optimal performance. Operation instructions walk through setup and daily use, while adjustment sections explain how to dial in stroke length and drill feed rate to match your specific production requirements. Spindle assembly maintenance is covered thoroughly, along with gear component servicing and dashpot reservoir oil replenishment procedures. The troubleshooting sections detail forward and return needle valve adjustments, poppet valve assembly work, and manual recycle valve operation. Accessories for sequential operation and a complete model designation chart covering H, J, K, L, M, N, P, Q, and D variants help you identify your exact equipment and find the right parts. The repair parts list ensures you can source replacements quickly. An essential reference for maintenance technicians and operators responsible for Ingersoll air feed drill upkeep.