Drive Unit - Enerpac W Serie Hoja De Instrucciones

X
Fig. J
5.3 Trouble shooting

5.3.1 Drive Unit

Symptom
Cylinder does not advance or retract Quick-connect coupling
Cylinder does not build up pressure
Cylinder leaks
Cylinder operates backwards
5.3.2 Fastener head
Symptom
Ratchet returns on retract stroke
Ratchet does not take
successive strokes
12
• As a check, the table below indicates
the correct height for the drive unit
retaining pin (X) and the fail safe pin
(Y).
Y
W2000
W4000
W8000
W15000 7,00
• Reverse the procedure to reassemble
the tool.
Cause
is damaged
Quick connect- coupling is
not connected
Dirt in the direction control valve Disassemble the unit and
on the pumping unit
Piston seal leaks
Pump does not build up pressure Adjust the pressure
Pump is defective
Seal failure
Connections are reversed
Cause
Broken drive shoe
Defective drive shoe
Lubricant on the ratchet
and/or drive shoe splines
X X Y
(mm) (inch) (mm)
4,00 .157 3,00
5,00 .197 3,00
6,00 .236 4,00
.275 6,00
Remedy
Replace the coupling
Reconnect the hoses
and couplings securely
clean the valve
Replace the seals
Refer to the pump manual
Replace the cylinder seals
Reconnect the hoses
Remedy
Replace the drive shoe
Replace the drive shoe
Disassemble the head and
remove the lubricant
from splines
Y
(inch)
.118
.118
.157
.236