
W2920
EN
Service
© Atlas Copco Industrial Technique AB - 9834 4669 01
11
All parts
Clean all parts before inspection.
Bearings
Make sure that the bearings are free from damages and runs smoothly.
End plates
■
Make sure that the end plates surfaces are not scratched or damaged.
■
Do a flatness test of the end plates surfaces. If they are visibly worn or deformed, polish
with fine grinding paste against a surface plate and then clean thoroughly.
Rotor
Make sure:
■
that the end faces have no marks or burrs
■
that the splines are not worn or cracked
■
that the plug holes have no cracks.
Cylinder
■
Make sure that the bore is not scratched or damaged.
■
If the end surfaces are rough, polish with fine grinding paste against a surface plate and
then clean thoroughly.
Inspection of strainer
Clean the strainer at the air inlet frequently to prevent clogging which decreases the capacity of the tool.
Replace a defective or worn strainer.
Inspection of silencer
Change or clean the filters regularly. Clogged filters will reduce power output.
Lubrication instructions
Rust protection and cleaning
Water in the compressed air can cause rust. To prevent rust we strongly recommend to install an air dryer.
Water and particles can cause sticking of vanes and valves. This can be prevented by installing an air fil-
ter close to the product to avoid pressure drop.
Before longer standstills always protect your tool by adding a few drops of oil into the air inlet. Run the tool
for 5–10 seconds and absorb any access oil at the air outlet in a cloth.
Lubricating guide
Use lubricants of good quality. The oils and greases listed in the lubrication table are examples of lubri-
cants that can be recommended.
Brand
General purpose
Bearings
Impact mechanism
BP
Energrease LS-EP2
Castrol
Spheerol EP L2
Esso
Beacon EP2
Q8
Rembrandt EP2
Mobil
Mobilegrease XHP 222
Shell
Alvania EP2
Alvania Grease RL2
Texaco
Multifak EP2
Molycote
BR2 Plus
Lubrication of motor parts
Apply a layer of oil where indicated.
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