Idiomas disponibles
Idiomas disponibles
PROBLEM
Little vacuum or pressure
Overheating
Beating against external surface
Sewage comes out of discharge elbow
Smoke comes out of discharge elbow
No circulation of lubricating oil (for
versions with automatic lubrication)
P.T.O. does not rotate
No suction / no compression
10 - TROUBLESHOOTING
CAUSE
Blades are worn
Some blades jammed in rotor
Air infiltration or leakage from system
Undulated cylinder
Reversing gear badly positioned
Flange assembly too tight
Mec 9000-11000-13500-16500
displacement of the sliding flange
Excessive pressure
Excessive rate of revs
Excessive operating time
Blades too long
Lack of lubrication
Rate of revs too low
Excessive/short
and/or
lubrication oil
Malfunctioning of valves
Excessive lubrication
Air intake at pipe fittings
Lubrication tube badly inserted in pipe
fittings
Air in oil pump chamber
Broken blades
Foreign body in rotary blades vacuum pump Remove foreign body
Handle incorrectly positioned
Reversing gear incorrectly positioned
Rotary blades vacuum pump rotates in
wrong direction
All blades jammed
Blades protrude from the rotor slots
anomalously
Rubber ball closes overflow valve
for use and maintenance serie MEC, STAR
REMEDY
Replace blades
Disassemble rotary blades vacuum pump,
clean and wash rotor, blades, and body
Eliminate infiltrations
Smooth or replace the body
Remove reversing gear and position it
correctly
Add a gasket to the back flange
Reinsert the pins supplied between the
body and flange for alignment
Reduce pressure
Reduce rate of revs
Reduce operating time
Trim blades to correct size
Check oil level in tank, oil pump
operation, setting of oil tap
Increase rate of revs
not
suitable
Clean the rotary blades pump and
replace the oil
Check valves
Adjust lubrication
Replace pipe fittings
Insert lubrication tube correctly
Fill pump chamber with oil
Replace blades (check if rotor pin is
bent)
Position handle correctly
Position reversing gear correctly
Reverse direction of rotation
Disassemble rotary blades vacuum
pump, clean and wash blades, rotor and
body
Disassemble rotary blades vacuum
pump, clean and wash blades, rotor and
body
Increase passage of air inside valve
instruction manual
pag. 53
