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Summary of Contents for RIVIT RIV938P
- Page 1 RIV938P/939P ITEM CODE | 4439600/4843900 PRACTICAL GUIDE TROUBLESHOOTING...
- Page 2 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING IT | 2...
- Page 3 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING TECHNICAL PROBLEM SOLVING SYMPTOMS CAUSE REMEDIES Insufficient air Check pressure: 6 to 6.5 bar 1. Lack of strength Lack of oil Refilling oil OR pistone aria usurato/rotto Sostituzione OR pistone corpo aria o non fa tenuta correttamente Cleaning of the distributor kit, 2.
- Page 4 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING TECHNICAL PROBLEM SOLVING SYMPTOMS CAUSE REMEDIES 9. Tie rod turns Breakage/Wear O-Rings continuously in Replacing O-rings (Quick Unscrewing Kit) unscrewing 10.1 10. The tool does Rod too short Replacing the rod not screw the rivet Adjust the ring nut/nut away 10.2...
- Page 5 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 1. LACK OF STRENGTH Not enough air, check the pressure, it must be between 6 and 6.5 bar. Not enough oil, top up by unscrewing the cap on the handle. Use a 5 mm hexagonal key.
- Page 6 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 2. AIR LEAKS FROM SILENCER/DISTRIBUTOR Air body piston OR worn or broken, does not allow correct pneumatic sealing. Replace O-ring Code 3235600 on air body piston. OR ring code 3235600 Rod belonging to the distributor kit blocked, due to the presence of impurities/lack of lubrication of the O-rings.
- Page 7 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 2. AIR LEAKS FROM SILENCER/DISTRIBUTOR If the O-rings break due to overworking of the machine, completely replace the distributor code 4157100. If the components (not O-rings) are in good condition, replace only the O-Rings (O-Ring Kit Code 4155800)
- Page 8 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 3. AIR LOSS FROM PRESSURE GAUGE In the event of air leakage from the pressure switch, the most probable cause is broken OR rings, so check in particular those in the plunger FIG.1 and check that they are not worn or broken, then check the OR rings in the chamber FIG.2 replace the OR rings belonging to Kit Code 4154400.
- Page 9 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 4. AIR/OIL LEAKAGE BETWEEN HANDLE AND AIR BODY If there is air/oil leakage between the handle and air body, it is likely that the O-ring or oil seal in the piston rod guide is worn. or the oil seal in the piston rod guide. Replace the stem guide completely code 4157300 (for RIV938) and code 4647600 (for RIV939).
- Page 10 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 5. AIR LEAKAGE FROM BUTTON If there is an air leak from the button, it is likely that one of the two OR rings (2) on the cage FIG.1 is worn or broken. two O-rings (2) on the cage FIG.1.
- Page 11 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 6. AIR LEAKAGE FROM THE BACK OF THE HANDLE If there is an air leak from the rear, locate the spot. If the leakage is in the part indicated in the photo, i.e. from the tubes, it is because one of the O-rings has worn or broken due to continuous sliding during tool work.
- Page 12 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 6. AIR LEAKAGE FROM THE BACK OF THE HANDLE Caso 1) CASE 1) CASE 2) Caso 2) O-rings Rod too long, does not allow the ball to close the air passage.. Distributor kit code 4803100...
- Page 13 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 7. PIVOT PIN LOCKED If the tie rod is blocked, it means that the whole assembly is not rotating and not working properly. The cause could be that the drive unit is too tight. Pull the piston out of the handle and unscrew the motor body from the piston, pull the motor assembly from the motor body and tap very carefully on the part indicated in the photo FIG.X, this very delicate step...
- Page 14 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 8. TIE ROD TURNS CONTINUOUSLY IN SCREWING If, when attaching air, the rod turns continuously in screwing, it means that the rod is too long and the ball does not close the passage hole properly, so adjust the rod length until the correct pneumatic seal is achieved, avoiding air leaks.
- Page 15 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 10. THE TOOL DOES NOT SCREW THE INSERT If the tool does not screw the insert in correctly after inserting the air, it may be due to the short rod. 10.1 short, then it is recommended to replace the rod Order code 4426700.
- Page 16 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 11. BY PRESSING THE BUTTON THE TOOL UNSCREWS WITHOUT PULLING If pressing the push-button lever (to activate the machine cycle) causes the tool to unscrew without making a pull, check the pressure switch plunger and check that the OR rings (15, 9, 16) present 11.1...
- Page 17 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 12. THE TOOL DOES THE PULLING BUT NOT THE UNSCREWING If the air inlet is 6 to 6.5 bar and the tool pulls but does not unscrew, top up the oil by unscrewing 12.1 the plug on the handle. Use a 5 mm hexagonal key.
- Page 18 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 14. THE TOOL PULLS AND CONTINUES TO UNSCREW If pressing the push-button lever (to activate the machine cycle) causes the tool to pull and continue unscrewing, check the distributor spring on the handle and the OR rings in the chamber 14.1...
- Page 19 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 16. LACK OF STROKE Not enough oil, top up oil by unscrewing the cap on the handle. 16.1 Use a 5 mm hexagonal key. Air inside the grip chamber, bleed air/oil by unscrewing the screw at the front of the grip FIG.1.
- Page 20 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING 16. LACK OF STROKE Dirt inside the end cone, clean the inner surface FIG.1, test the stroke or check the diameters 16.3 if they interfere. If the quick coupling FIG.2 does not pass through the outer cone or enters forcibly, replace it (Code 3539900).
- Page 21 RIV938P/939P | PRATICAL GUIDE TROUBLESHOOTING GENERAL PREVENTIVE MAINTENANCE PLAN Oil level check and air/oil bleed every 5 working days. Tie rod wear check, depending on the type of insert (aluminium/steel/stainless steel) it is advisable to checking every 10.000 cycles approx.; stainless steel inserts wear the tie rod more quickly.
- Page 22 Rivit S.r.l. Via Marconi, 20 - Loc. Ponte Rizzoli 40064 Ozzano dell’Emilia Bologna Tel. 051 41 71 111 - Fax. +39 051 41 71 129 rivit@rivit.it - rivit.it...
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