Compression Brake - Inspect/Adjust/Replace - Cat Compression Brake
The maintenance of the Cat compression brake should be performed at the same time as the scheduled maintenance of the valve lash.
Note: The adjustment of the actuator piston lash must be performed after the engine valve lash adjustment is performed. Make the adjustment of the actuator piston lash while the engine is stopped. Refer to the Systems Operation, Testing and Adjusting module for additional information.
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| Component | Required Maintenance |
| Wiring and Terminal Connections | Inspect |
| Clutch/Throttle/Buffer Screw | Inspect/Adjust |
| Actuator Piston Lash Adjusting Screws | Inspect/Adjust |
| Crosshead Bridges/Valve Stem Caps | Inspect |
| Housing | Inspect |
| Hold Down Bolts | Inspect |
| Control Valve | Inspect |
| Oil Seal Ring (1) | Inspect/Replace |
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| ( 1 ) | Inspect the oil seal rings for signs of wear and for signs of damage. If necessary, replace the oil seal rings. Refer to the Parts Manual for further information. |
Caterpillar Information System:
C7 and C9 On-highway Engines Air Compressor - Check
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095} 4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
C7 and C9 On-highway Engines Maintenance Interval Schedule - C7 Engines with Shallow Sumps that are Used in School Bus Applications
C7 and C9 On-highway Engines Maintenance Interval Schedule - C7 Engines with Deep Sumps that are Used in School Bus Applications
9U-5000 Series Hydraulic Test Bench {0599, 0738} 9U-5000 Series Hydraulic Test Bench {0599, 0738}
C13 Engine for Combat and Tactical Vehicles Exhaust Manifold
2011/12/01 An Improved 5P-8500 Key Is Now Available {1416, 1416, 7000, 7000}
Diesel Particulate Filter Regeneration on C7.1 Engines{108F} Diesel Particulate Filter Regeneration on C7.1 Engines{108F}
New Engine Software Is Available for Tier 4 Interim C9.3 Through C18 Industrial and Machine Engines{1901, 1902, 1920} New Engine Software Is Available for Tier 4 Interim C9.3 Through C18 Industrial and Machine Engines{1901, 1902, 1920}
Revised Start-Up Procedure For Uninterruptible Power Supply UPSB 125/130 {4480} Revised Start-Up Procedure For Uninterruptible Power Supply UPSB 125/130 {4480}
2012/01/12 A New Hose Is Used in the Fuel Filter Lines on C175-16 Generator Set Engines {1261, 1274}
2011/12/19 New Fuel Injectors and New Software Are Used for C175-16 Generator Set Engines {1251, 1254, 1290, 1713, 1901, 1920}
CX48-P2300 Petroleum Transmission Transmission Relief Valve (Transmission Hydraulic Control)
CX48-P2300 Petroleum Transmission Transmission Flexible Coupling
CX48-P2300 Petroleum Transmission Transmission Flexible Coupling
CX48-P2300 Petroleum Transmission Transmission Flexible Coupling
2012/01/06 New Location for the Air Inlet Temperature Sensor on C175-16 Generator Set Engines {1439, 7400}
C11 and C13 Engines Camshaft
2011/11/29 Fuel Injection Pump on Certain C6.6 and C6.4 Engines {1251, 1274}
345D MHPU and 349D MHPU Mobile Hydraulic Power Units Machine Security System - If Equipped
3114, 3116, 3126 Engines Connecting Rod
C13 Engine for Combat and Tactical Vehicles Camshaft
345D MHPU and 349D MHPU Mobile Hydraulic Power Units Securing the Machine
C13 Engine for Combat and Tactical Vehicles Engine Oil Filter Base