The 684042-4 is a terminal applicator tool for which a preventative maintenance schedule is suggested to ensure its operational life. Daily maintenance, recommended every 8 hours or 25,000 cycles, involves cleaning, lubrication, and visually inspecting key components like the wire crimper, insulation crimper, and anvil for wear. A complete cleaning and inspection should be performed monthly or after 1,000,000 cycles. The use of recommended lubricants, such as Chevron Ultra Duty EP NLGI No 2 grease and 3-IN-ONE oil, is critical for maintaining the tool. Following this maintenance schedule helps maximize tooling life, which ultimately depends on the severity of the specific customer application.