PUMP GP-FUEL INJECTION 3240532 - Caterpillar

Remove & Install Fuel Injection Nozzles
Start By:a. remove rocker shaft assemblies 1. Thoroughly clean the area around each fuel line connection. Disconnect fuel injection line (1) and fuel injection nozzle (2) from the adapter.2. Remove clamp (3) and the spacer that holds the fuel injection nozzle in place.
Never use force to remove the fuel injection nozzles. If necessary, turn and pull the fuel injection nozzle out of the cylinder head.
3. Remove adapter (4) and fuel injection nozzle (2). The following steps are for installation of the fuel injection nozzles.
Before the fuel injection nozzles are installed, check for fuel leakage, the pressure at which the injection nozzle opens, and the amount of fuel (spray pattern) that comes out of the nozzle with tool (A). See Testing Fuel Injection Nozzles in Testing & Adjusting.
4. Remove carbon seal dam (6) with pliers. Remove compression seal (5). 5. Install a new compression seal on the nozzle. Install a new carbon seal dam with tool (B).6. Make sure the bore in the cylinder head and the fuel inlet fittings are clean.7. Install new O-ring seals on adapter (4) and fuel injection nozzle (2).8. Install the fuel injection nozzle in the head. Turn and push the nozzle into its correct position. Never put lubricant on the nozzle or bore in the cylinder head.9. Install adapter (4) in the head. Connect nozzle (2) and fuel injection line (1) to the adapter. Tighten the nuts to a torque of 40 7 N m (30 5 lb ft).10. Install the spacer and clamp (3) that hold the nozzle to the cylinder head.End By:a. install rocker shaft assembliesDisassemble & Assemble Fuel Injection Nozzles (9L7883)
Start By:a. remove fuel injection nozzles Do not disassemble any nozzle until testing has shown that disassembly is needed. Check each nozzle with tool (A) for leakage, opening pressure, and the shape and amount of fuel (spray pattern) coming out of the nozzle. Do not clean or make an adjustment to any nozzle that has a large (excessive) amount of return leakage. Excessive return leakage can be an indication of nozzle failures that can not be corrected with an adjustment or cleaning and can cause engine damage. See Testing 9L7883 Fuel Injection Nozzles in Testing & Adjusting.
Keep the work area and all tools extra clean. Be careful not to cause damage to the parts while the nozzles are disassembled and assembled.
1. Put the nozzle in tool (B). Put tool (B) and the nozzle in a vise. Do not put any part of a nozzle directly in a vise. Loosen locknut (1). 2. Loosen adjusting screw (2) approximately three turns. Loosen pressure screw (3). 3. While the nozzle is held in one hand, tilt the nozzle and remove locknut (1), adjusting screw (2), pressure screw (3), shims (7), spring (6), seat (5), and valve (4). 4. If the valve does not slide out of the nozzle, install tool (C) and remove valve (4) as follows:a. Push valve (4) into the nozzle with tool (C)