Porto-Power B65122, Operating Instructions & Parts Manual

6

TROUBLESHOOTING

Symptom

Possible Causes

Corrective Action

Application will not extend, move or

 respond to pressurized fluid

Application responds to pressurized

 fluid, but system does not maintain
 pressure

Application will not 

fully

 extend

 (cylinder or spreader)

 • Overload condition
 • Release valve not closed

 • Fluid level low

 • Fluid level low
 • Air trapped in system

 • Overload condition
 • Release valve not closed
 • Hydraulic unit malfunction

 • Remedy overload condition
 • Ensure release valve closed

 • Remedy overload condition
 • Ensure release valve closed
 • Contact

Service Center

• 

Secure load by other means

. Open

release valve, 

depressurize

 pump and

hose, remove application, then drain fluid to
proper level

• Ensure proper fluid level

 • Ensure air vent plug stem is in correct

position to let pressurized reservoir air
escape

 Poor performance

Application will not return fluid to

 pump (i.e. cylinder will not retract)

• Malfunctioning coupler,

damaged application

 • Reservoir overfilled

 •

 Secure load by other means

. Open

release valve, 

depressurize

 pump and

hose, remove coupler and/or application,
then renew or replace

 •

 Secure load by other means

. Open

release valve, 

depressurize

 pump and

hose, remove application, then drain fluid to
proper level