4V9034 STICK ASSEM. Caterpillar parts
225
Rating:
Alternative (cross code) number:
CA4V9034
4V-9034
4V9034
CA4V9034
4V-9034
4V9034
Weight: 1116 pounds 506 kg.
EXCAVATOR,
Compatible equipment models: 4V9034:
Information:
This is a 5.8-hour job
4.3 hours of labor is allowed for each additional cylinder pack replaced.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
Refer to appropriate service manual(s) as necessary.
If this is the 3rd cylinder that has been replaced due to frequent detonation shutdowns, then all remaining cylinder packs should be replaced following this rework procedure.
Note: Early G3516H engines (GLN00001-00126 and GLM000001-00155) were built with a 384-2884 Piston As and related cylinder liner and cuff sleeve. For engines that have the older 384-2884 Piston As, replace affected parts with the current 418-9359 Piston As along with the remaining cylinder pack components listed in the parts list provided (i.e. Liner, cuff, rings, etc.). It is acceptable to run a mixture of cylinders with these different Piston As; It is not a requirement to change all cylinders with the 384-2884 Piston As due to the difference in these part numbers.
Procedure:
Pre-repair:
1) Perform all appropriate troubleshooting steps for the cylinder experiencing detonation Refer to Troubleshooting Guide, "Detonation Occurrence" in SIS web. Verify that the ignition system/timing, detonation system, engine wiring, and valve lash/mechanical noise are not the cause of the detonation alarms. Ensure the engine has the latest Engine ECM and ISM software installed. It is also important to ensure that the engine is applied properly, for example: rated for fuel, altitude, and ambient conditions. Use the appropriate Troubleshooting Manual for this step.
2) Use a borescope to evaluate cylinder liner health. In extreme cases, although uncommon, liner scoring or cracks may be present. In these cases, the engine should be repaired before further operation to avoid piston seizure or other catastrophic failure, and the remaining cylinders should be inspected for similar signs. In most common cases, the liners appearance is perceived to be normal and the engine can continue to be operated. To reduce continual interruption to operation due to detonation shutdowns, the engine should be operated at a reduced load until the repair can be performed.
3) Inspect and ensure the cooling water to the second-stage aftercooler (SCAC), and the Intake manifold air temperature (IMAT) comply with the engines' technical datasheet. Operating Temperatures colder than desired can lead to condensation resulting in continual cylinder pack degradation. Take appropriate measures to ensure these temperatures comply. In some regions, the SCAC and IMAT may need to be elevated due to elevated humidity levels. Review for any related product support programs prior to any new cylinder packs being installed. Perform that work as applicable in conjunction.
4) Inspect the air system for signs of rust/corrosion. Rust scaling is a potential result if the engine was exposed to condensation. Rust particles entering the cylinder can lead to detonation and loss of oil control. Review for any related product support programs prior to any new cylinder packs being installed. Perform that work as applicable in conjunction.
5) Verify and document detonation shutdown events of a particular cylinder by capturing logged events from Caterpillar Electronic Technician (Cat ET) through Product Status Report(s) (PSRs). It