RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING
IT | 3
TECHNICAL PROBLEM SOLVING
SYMPTOMS CAUSE REMEDIES
1. Lack
of strength
1.1 Insufficient air Check pressure: 6 to 6.5 bar
1.2 Lack of oil Refilling oil
2. Air leakage
from silencer/
distributor
2.1 OR pistone aria usurato/rotto
o non fa tenuta correttamente Sostituzione OR pistone corpo aria
2.2 Stem (distributor kit) locked
Cleaning of the distributor kit,
adequate lubrication with specific
grease of all o-rings in the distributor
in the distributor kit
2.3 Broken O-rings belonging
to the Distributor Kit
Replacing the entire
Distributor kit/OR kit
3. Air leakage from
pressure switch
3.1 Broken O-rings in the plunger Replacing O-rings
3.2 Broken OR rings on the chamber Replacing O-rings
4. Air/oil leakage
between handle
and air body
4.1
Possible breakage O-ring of the rod
guide. Probable wear of complete
rod guide oil seal
Replacement of guide kit
complete rod
4.2 Broken O-ring on air body.
Flat gasket breakage
Replacement Gasket Kit
flat + OR
5. Air leakage
from button 5.1 Broken O-rings in the cage Replacing O-rings
6. Air leakage
from the back
of the handle
6.1 Probable failure of O-rings
(Rigid pipe kit with grooves)
Replacement Rigid Hose Kit
with grooves
6.2 Possible crushing/breakage O-ring
between motor body and distributor Replacement OR Kit + Screws
6.3 Rod too long Adjust rod length
7. Locked
pivot pin 7.1 Very narrow motor unit Loosen and adjust motor unit
8. Tie rod turns
continuously
in screwing
8.1 Rod too long Adjust rod length
