Hydraulic System Pressure - Release
Release Procedure
Show/hide table
 |
Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
 |
- Shut off the engine.
- Apply the parking brake.
- Slowly loosen the filler cap in order to release the pressure.
- Tighten the filler cap.
- The pressure in the hydraulic system has been released. Lines and components can be released.
Caterpillar Information System:
CB-634D Paving Compactor Engine Water Pump - Inspect
16H Motor Grader Engine Oil and Filter - Change
16H Motor Grader Engine Oil Sample - Obtain
CB-634D Vibratory Compactor Machine Systems Steering Frame Lock - Separate and Connect
570B Wheel Harvester and 580B Wheel Harvester Engine Supplement Refrigerant Compressor - Remove and Install
CB-634D Paving Compactor Engine Oil and Filter - Change
16H Motor Grader Engine Oil Level - Check
914G Compact Wheel Loader and IT14G Integrated Toolcarrier Transmission Electronic Control System Diagnostic Capabilities
CP-433E, CS-423E and CS-433E Paving Compactors Platform Tilting
CB-634D Paving Compactor Engine Oil Sample - Obtain
416D, 420D, 424D, 428D, 430D, 432D, 438D and 442D Backhoe Loaders Hydraulic and Steering System Control Valve (Tilt) (Mechanically Operated) - Single Tilt Machines
CB-634D Paving Compactor Engine Oil Level - Check
914G Compact Wheel Loader and IT14G Integrated Toolcarrier Transmission Electronic Control System Using the Diagnostic Indicator to Determine Diagnostic Codes
CB-634D Vibratory Compactor Machine Systems Battery and Battery Cable - Separate and Connect
CB-634D Paving Compactor Fuel System - Prime
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Engine Oil Pressure - Test
416D Backhoe Loader Backhoe Stabilizer Controls
14H Motor Grader Ether Starting Aid Cylinder - Replace
CB-634D Paving Compactor Fuel System Secondary Filter - Replace
140H and 160H Motor Graders Electronic Unit Injector - Inspect/Adjust
CB-634D Paving Compactor Fuel System Water Separator - Drain
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Cylinder Head - Inspect
CB-634D Paving Compactor Fuel Tank Cap and Strainer - Clean
16H Motor Grader Drawbar Ball and Socket End Play - Check/Adjust