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31
Instruction Manual - RIV 938S
PROBLEM
Air leaks from muffler
Motor rotates continuously
Quick kit assembly
Loss of revolutions during
unscrewing
SOLUTION
Check the two O-rings (O4) and O-ring
(21 part number 3235600) which could be worn or broken
When the rotating pin (6 part number 4151500) is broken and you replace it, it
may happen that the motor rotates continuously, which means that the shaft (13
part number 3761300) is too long; in this case, it will have to be shortened by a
few tenths to obtain the closure of the ball (14 part number 3096900).
Unlike the situation above, the shaft
is too short and it has to be replaced
with a new one, fitting it without
end float, witht he air on, in order to
obtain the closure of the ball (14 part
number 3096900).
When assembling the quick kit (part number 4176900),
with air off, make sure to create an axial space of
1.5mm allowing the pin to move freely.
When you overwork the tool, there may be a loss
of revolutions during unscrewing; it is necessary to
remove the air hose and add a few drops of oil in the
air hose connection and push button (P) for a couple of
minutes.
