Malfunction
Possible cause
Couplings or connectors are incorrectly
Oil loss
connected
Leakage of pump piston, possibly due
to worn seals
Pump lever yields
Air in the oil circuit
under load in
operation
If the defect cannot be eliminated, please contact
Schaeffler Customer Service.
Possible malfunctions of the foot pump
PUMP1000-5L-AIR
Malfunction
Possible cause
Pump does not
Inadequate compressed air supply
start
Air feed not adequately filtered or
insufficiently lubricated
Maximum pres-
Insufficient pressure in the air supply
sure is not achie-
ved
No oil feed/no
Too little oil in the tank
pressure
Contaminated suction filter
Control valve damaged
Irregular oil feed
Damaged safety valve
Leak in the oil circuit
Worn or damaged pump
Irregular pressure Air in the oil circuit
Contaminated oil
Worn or damaged pump
The defect may also lie in an inadequate com-
pressed air supply, in which the requisite air pres-
sure is not achieved or is exceeded. If the defect
cannot be eliminated, please contact Schaeffler
Customer Service.
www.schaeffler.de
M1 M2 M3 M4 M5
Remedy
Check the connections
Replacement of seals by qualified professional or Service at
Schaeffler
Completely release the pressure, check the connections,
bleed the oil circuit u58
Remedy
Check pressure or delivery volume of air supply
Check air service unit and oiler
Check the pressure of the air supply
Stop operation: release pressure, separate pump. Then
refill with oil
Send the hydraulic pump to Schaeffler for repair.
Send the hydraulic pump to Schaeffler for repair.
Replace leaking parts or send the hydraulic pump to
Schaeffler for repair.
Send the hydraulic pump to Schaeffler for repair.
Check the connections, bleed the oil circuit u58
Clean the tank and change the oil
Send the hydraulic pump to Schaeffler for repair.
BA 54
73