GASKET 7N4320 - Caterpillar

Engine: 3606 (S/N: 8RB1-UP) 3608 (S/N: 6MC1-UP) 3612 (S/N: 2NZ1-UP; 9FR1-UP; 9RC1-UP) 3616 (S/N: 1FN1-UP; 1PD1-UP) 3618 (S/N: 2MW1-UP) 3612 DI TA (S/N: NZA1-UP)Introduction
This Special Instruction covers the use, the maintenance, and the troubleshooting of the 4P-4788 Electrical Converter Gp and the 4P-4789 Electrical Converter Gp .The 4P-4788 Electrical Converter Gp and the 4P-4789 Electrical Converter Gp supply 24 VDC to the following governors:
the 7C-8920 Governor Control
the 147-7293 Governor Control As Note: A direct connection to a customer provided 24 DCV Power Supply can also be used in order to provide power to the 7C-8920 Governor Control and 147-7293 Governor Control As .The 4P-4788 Electrical Converter Gp and the 4P-4789 Electrical Converter Gp accept either of the following input voltage ranges:
110 ACV to 127 ACV (50 Hz or 60 Hz)
200 ACV to 240 ACV (50 Hz or 60 Hz)The 4P-4788 Electrical Converter Gp and the 4P-4789 Electrical Converter Gp have an output voltage range of 22 DCV to 27 DCV.The 4P-4788 Electrical Converter Gp is equipped with a backup battery. This battery backup is located in the enclosure. When AC power is interrupted, this battery backup can supply power to the electronic governor for a period of 40 minutes to 60 minutes. This time period is determined by the age of the battery.The 4P-4789 Electrical Converter Gp is not equipped with a backup battery. Customer supplied batteries can be connected to the 4P-4789 Electrical Converter Gp . When customer supplied batteries are connected to the 4P-4789 Electrical Converter Gp , the 4P-4789 Electrical Converter Gp has the same functionality as the 4P-4788 Electrical Converter Gp .Note: When emergency backup power is not required, customer supplied batteries do not need to be connected to the 4P-4789 Electrical Converter Gp . Without a backup battery, the 4P-4789 Electrical Converter Gp will act the same as an AC to DC power supply.Specifications
Table 1
Specifications    
Voltage Input         110 ACV to 127 ACV
or
200 ACV to 220 ACV    
Frequency         50 Hz/60 Hz    
Power Input         200 VA    
Output Voltage (normal operations)         27 VDC    
Residual Ripple         < 10%    
Output Voltage (battery operation)
( 4P-4788 Electrical Converter Gp only)         24 VDC    
Output Current     Governor Supply     5 Amperes maximum    
Accessory Supplies (2 channels) 1 Ampere Maximum (per channel)    
Battery Capacity         5.7 Amperes    
Battery Life Targets     100% Discharge     200 Cycles    
60% Discharge 700 Cycles    
Fully Charged Up to 8 years    
Alarm Contact Rating         440 VAC/8 Amperes Maximum    
Temperature Range         -20 °C (-4.0 °F) to
45 °C (113.0 °F)
(can withstand short term exposure up to
55 °C (131.0 °F)    
Humidity         Up to 90%