INJECTOR GP-FUEL 0R8633 - Caterpillar

Pumper: SPF343C (S/N: RTX1-894)Petroleum Transmission: TH48-E80 (S/N: FRT1-1440)Introduction
This publication will provide the proper steps to follow prior to updating the TH48-E80 transmission to the wide gear planetary gear set. Early versions of the TH48-E80 may need to be reworked to provide clearance for the updated planetary gear set.
Perform the follow inspection to determine if the transmission case needs to be reworked. If rework is necessary, follow the provided instructions for modifying the transmission case.Reference
Reference Disassembly and Assembly, RENR9664
Reference Service Guide, SEBD0512, "Caterpillar Service Welding Guide"
Reference Special Instruction, REHS1841, "General Welding Procedures"Welding Requirements
Personal injury or death can result from fumes, gases and ultraviolet rays from the weld arc.Welding can cause fumes, burn skin and produce ultraviolet rays.Keep your head out of the fumes. Use ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing area. Wear eye, ear and body protection before working.Protect yourself and others; read and understand this warning. Fumes and gases can be dangerous to your health. Ultraviolet rays from the weld arc can injure eyes and burn skin. Electric shock can cause death.Read and understand the manufacturer's instructions and your employer's safety practices. Do not touch live electrical parts.See "American National Standard Z49.1, Safety in Welding and Cutting" published by the American Welding Society.American Welding Society
2501 N.W. 7th Street
Miami, Florida 33125
See "OSHA Safety and Health Standards, 29 CFR 1910", available from U.S. Department of Labor.U.S. Department of Labor
Washington, D.C. 20210
Welding quality is critical to the success of the installation procedures. Welds must be smooth and continuous. Do not undercut the welds. No overlap is allowed. Grind the ends of the welds to a smooth radius.Prepare the metal for welding. Refer to ""Preparing the Metal for Welding"". Refer to the illustrations in this Special Instruction for welding symbols and specifications.Use AWS E7018 electrodes or equivalent electrodes to weld the guards to the work tool.Dry all the electrodes completely. The electrodes can be dried by heating the electrodes to 300°C (572°F). The electrodes must be dried for at least 30 minutes.Do not weld in windy conditions. Do not weld when temperatures are below 16°C (60°F).Penetration characteristics may vary greatly depending on the following conditions:
Electrode diameter
Shielding gas
Welding current
Plate thicknessThe following items also affect the welds:
Geometry of welded joints
Surface conditions
Composition of the base metal and of the electrodeA root pass should be applied before each weld is finished.Maintain a 3 mm (0.12 inch) minimum root opening on all cross welds and circle welds.All welds to the stick must be welded in the direction from the rear of the stick toward the front of the stick.For more welding information, consult the Caterpillar Service Welding Guide, SEBD0512.Preparing the Metal for Welding
Personal injury can result from flame cutting or welding on painted areas.The effect of gasses from burned paint is a hazard to the person doing the cutting or welding.Do not flame cut or weld on painted areas.
Before carrying out arc welding on the machine or on any equipment attached to the machine, disconnect all power and