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RING-GUIDE 4646774 - Caterpillar



4646774 RING-GUIDE Caterpillar parts RING
Rating:
66
Alternative (cross code) number:
CA4646774
464-6774
4646774
Caterpillar 4646774 RING-GUIDE
Weight: 0.02 pounds 0 kg.

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The slave piston lash setting is marked on the tag for the model number. Refer to Table 4 for the slave piston lash setting.Electronic Controls for Compression Brake
Illustration 4 g00542737
Wiring schematic of compression brake for engines without ABS system (1) ON/OFF toggle switch (2) Switch location (3) Base for relay (4) Three-position toggle switch (5) Harness for power lead (6) Wiring harness
Illustration 5 g00542738
Wiring schematic of compression brake for engines with ABS system (1) ON/OFF toggle switch (2) Switch location (3) Base for relay (4) Three-position toggle switch (5) Harness for power lead (6) Wiring harnessThe compression brake on the 3176B is controlled by the engine ECM. There are no longer electronic controls (control modules or relays). The wiring to the compression brake is standard in the 3176B wiring harness. The wiring passes into the valve cover base. The wiring then passes through the J5/P5 connector. The wires are secured inside the valve cover base if the engine is not equipped with compression brakes.
Table 5
Part Numbers of Switches for Compression Brake    
Part Number     Switch    
143-6632     Engine Brake Switch    
143-6620     Engine Brake Switch    The current electronic control wiring and switches must be removed from the cab if the engine is equipped with compression brakes. A new ON/OFF switch and a new LOW/MEDIUM/HIGH braking switch must be installed in the cab. Refer to Table 5 for the part numbers of the switches.The ECM requires two switch inputs in order to control the operation of the compression brake. A LOW/HIGH wire must be installed from the OEM Harness Connector of the Wiring Harness Adapter to the switch in the cab for LOW/MEDIUM/HIGH braking. A MEDIUM/HIGH wire must be installed from the OEM Harness Connector of the Wiring Harness Adapter to the switch in the cab for LOW/MEDIUM/HIGH braking. A wire must be installed from the switch for LOW/MEDIUM/HIGH braking through the ON/OFF switch to ground. Refer to Illustration 4 and Illustration 5 for wiring of the compression brake.Note: It may be necessary to install an additional relay in the switch circuit for the compression brake if the vehicle is equipped with an Anti-lock Brake System (ABS). The additional relay allows the ABS system to turn off the retarder. The contacts of the relay must be normally closed. The ABS system can not turn on the retarder. The Caterpillar ECM must activate the retarder.Other Options
Table 6
Options for Remanufactured 3176B Truck Engine    
Option     Section of Reference    
Throttle Position Sensor (8 Volt supply)     PB-12    
Output of Speedometer from ECM     PB-14    
Enabling of The Auxiliary Brake (Not Integrated Enable)     PB-19    
Cooling Fan Control from ECM     PB-18    
Output of Tachometer from ECM     PB-22    
J1922 Power Train Data Link     PB-24    Other options are listed in Table 6. The installation of any of the options is NOT recommended during the replacement of the engine. These items DO NOT enhance normal engine operation and these items require

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