5
Instruction Manual
Hydraulic Hand Pump “W07807”, “X07807”
BREAK DOWNS AND
REPARATIONS
6. DIMENSIONS
THE CYLINDER DOESN´T AVANCE
Lack of oil in the tank ____
Check the oil.
Couplers not fully inserted ____
Check couplers.
Admission ball valve failure (19) ____
Clean the seat and
replace the ball.
Closing ball valve failure (22) ____
Clean the seat and
replace the ball.
THE CYLINDER DOESN´T REACH WORKING PRESSURE
.
Relief valve decalibrated (12) ____
Calibrate the valve.
Retention ball valve failure (20) ____
Clean the seat and replace the ball.
Closing ball valve failure (22) ____
Clean the seat and replace the ball.
Pressure seal damaged (26) ____
Replace the seal.
Cylinder pressure seal damaged (see cylinder) ____
Replace the seal.
THE CYLINDER DOESN´T RETRACT
Too much oil in the tank ____
Check the level.
