VEVOR NAP002 Gebruikershandleiding pagina 10
Luchtgestuurde hydraulische voetpomp
IMPORTANT:
Hand pumps should be repaired only by qualified or Authorized Service
Centers. Repairing the hand without special tools and knowledge may
result in injury. Always release pressure and disconnect before making
repairs
Symptom
Application will not
extend,move or
respond to
pressurized fluid
Application responds
to pressurized fluid,
but the system does
not maintain
pressure
Application will not
return fluid to pump
(i.e.cylinder will not
retract)
Application will not
fully extend (cylinder
or spreader)
Poor performance
TROUBLE SHOOTING
Possible Causes
·Overload
condition
· Release valve not
closed
·Overload
condition
· Release valve not
closed
· Hydraulic unit
Malfunction
· Malfunctioning
coupler, damaged
application
· Reservoir
overfilled
· Fluid level low
·Air trapped in the
system
- 9 -
Corrective Action
· Remedy overload
condition
· Ensure the release valve
closed
· Remedy overload condition
· Ensure the release valve
closed
·Secureload by other means.
Open the release valve,
depressurize the pump and
hose, remove the coupler and/or
application, then renew or
replace
·Secureload by other means.
Open the release valve,
depressurize the pump and
hose, remove the coupler
and/or application, then drain the
fluid to a proper level
· Follow the symptom 3
procedure for securing the load,
depressurizing the pump,
removing the application, then
ensuring the proper fluid level
Ensure the proper fluid level
Ensure the vented oil filler plug
lets pressurized reservoir air
escape(see BEFORE USE)
