CARRIER-PLANETARY 6P0700 - Caterpillar

EngineG3512H (S/N: GF41-UP; GF51-UP)G3516H (S/N: ME31-UP; NWH1-UP; NWJ1-UP; GLM1-UP; GLN1-UP; N1S1-UP)G3520H (S/N: GFP1-UP; GFR1-UP)Generator SetCG170-16 (S/N: KSJ1-UP)Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information.This Special Instruction provides the following information for G3500H Engines:
Requirements for the electrical system
Proper grounding practices
Proper welding practices
Required service tools
Electrical components and electronic components
Wiring connections and the corresponding functions that are available to the customer
Initial start-up procedure
Governor adjustment proceduresReference: Information from the following sources will be needed for this Special Instruction:
Data from a complete fuel analysis using Gas Rating Pro (GERP).
The engine performance Data Sheet from the engine Technical Marketing Information (TMI)
Operation and Maintenance Manuals, SEBU8748 and SEBU9173
Systems Operation/Testing and Adjusting, UENR0514, "G3512H, G3516H, and G3520H Generator Set Engines"
Systems Operation/Testing and Adjusting, RENR7941, "Cat® Digital Voltage Regulator"
Systems Operation/Testing and Adjusting, KENR8990, "3000 Frame SR5 Electric Power Generation"
Troubleshooting, UENR0515, "G3512H, G3516H, and G3520H Generator Set Engines"
Systems Operation/Troubleshooting/Testing and Adjusting, UENR3697, "Product Link® E640 System"
Schematic, UENR1229, "G3512H and G3516H Low Voltage Generator Set Electrical System"
Schematic, UENR3961, "High Voltage - Generator Off Package with EMCP4.3 Controller Electrical System"
Application & Installation Guide, LEBE0007, "Cat® EMCP 4.3 and 4.4 Generator Set Control"
Application & Installation Guide, LEBW4978 , "Cooling Systems"
Schematic, UENR8310, "G3512H Engine Electrical System"
Schematic, UENR3947, "G3516H Engine Electrical System"
Schematic, UENR2491, "G3520H Engine Electrical System"Requirements for Cooling System
The cooling system venting is perhaps one of the more under appreciated components of the cooling system. Its job is to make certain the cooling system performance is not compromised by entrained air. Entrained air in the coolant flow can affect the cooling capability of the coolant.G3500 engines with water cooled valve seats (cross-flow cylinder heads) are particularly susceptible to mechanical issues due to trapped air in the cooling system. Extra care must be taken on these engines to ensure that best venting practices are followed.Refer to the venting section of the Application & Installation Guide, LEBW4978 , "Cooling Systems" for general information on venting best practices.The following illustrations help clarify venting locations and best practices specific to G3500H engines:Note: The customer installed lines shown are examples and the images do not include the required flex connections between the engine and customer installed lines.
Illustration 1 identifies required venting locations on engine for G3500H engines.
Illustrations 2 through 4 provide examples of appropriate locations for vent line connections on customer installed water lines. In general all local high points of customer installed water lines need to be vented. This venting is in addition to the on engine vent locations shown in Illustration 1.
Illustrations 5and 6 provide a generic schematic for the jacket water customer installed water lines and the SCAC customer installed water lines.
Illustration 1 g06260656
G3500H on-engine vent locations
(1) (Location 1) Jacket water (first stage) vent location connection
(2) (Location 2) SCAC (second stage) vent location connection
Illustration 2 g06257161
G3500H jacket water vent location examples on customer installed lines for an engine with pumps
(3) (Location 3) Customer installed jacket water outlet line vent connection.Note: (Location 3) vent (3) must vent at all local high points in the line. See