856990 1 Mariner SWITCH, Trim

Introduction
This special instruction covers the procedure to install engine overspeed control on the above R3000H Load Haul Dump Machines. This supplemental product support literature should be used with the appropriate Service Manual and the appropriate Parts Manual that is available for this standard machine.Read the entire Special Instruction. Understand the information before you perform any procedures. Understand the information before you order any parts.ReferenceDisassembly and Assembly, UENR1483, "R3000H Load Haul Dump Machine Systems"ReferenceSchematic, UENR1488, "R3000H Load Haul Dump Electrical System"Safety Section
Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools in order to perform these functions properly.Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive.Ensure that all personnel are safe when using a tool, procedure, work method, or operating technique not recommended by Caterpillar. Ensure that the product will not be damaged or the product made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
Personal injury or death can result from escaping fluid under pressure.Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.Always use a board or cardboard when checking for a leak.
Personal injury or death can result from machine articulation or movement. Machine frames can move and a person can be crushed. Connect the steering frame lock between the front and rear frames before working on the machine.Before operating the machine, place the steering frame lock in the stored position.Failure to place the steering frame lock into the stored position before operating can result in loss of steering.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Parts Required
Table 1
Parts Required    
Qty    Part Number    Description    
1     030-7947     Elbow    
2     030-7949     Elbow    
2     030-7959     Flared Tee    
1     030-7963     Flared Elbow    
1     030-8190     Connector    
2     118-4728     Elbow    
1     119-2604     O-Ring Tee    
5     130-5300     Clip    
2     134-8226     Bracket    
10     163-5531     Cable Tie    
4     1K-4649     Spacer    
2     1W-8795     Bracket    
1     203-1791