FlexiROC T30 R 10 Hydraulic System
62 No: 3629357835.1.3629419915 en-US
10.4 Replacing Hydraulic Hoses
WARNING
High Hydraulic Oil Pressure
Working on the hydraulic system involves a high risk of personal injury.
u Make sure that the system is de-pressurized before starting any work.
WARNING
Hydraulic Oil and Water Pressure
Can cause personal injury.
u Do not replace high pressure hoses with hoses of lower quality than the originals.
u Do not replace high pressure hoses with hoses fitted with removable couplings.
Load, vibration, and mechanical stresses place many demands on hydraulic hoses. When
replacing, check that replacement hoses have:
n The correct crimped couplings
n The correct quality class
n The correct dimensions
All pressurized components must be purchased from Atlas Copco. The grades and dimen-
sions of hoses are specified in the spare parts catalog. Make sure that hose couplings are
clean, undamaged, and properly tightened.
10.5 Check Hoses and Couplings
First read: Safety Precautions Before Working on Hydraulic System [}61]
n
Inspect all hydraulic hoses and connections thoroughly. Any cracking or swelling indi-
cates an external or internal leak. Inspect the hose location and clips.
n
Inspect the hose casing. Any swelling indicates inner hose or cord breakage.
n
Inspect the hydraulic couplings for leaks, indentations, and adapters. The couplings
must be fastened securely if they have screw flanges. If there are any signs of leaks
around connections, replace the seals or the complete coupling.
n
Check that all hose retainers and clamps are intact.
n
Inspect all pressed couplings for signs of cracks or damage to compression sleeves.
Replace any defective hoses with new ones.
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