Durapac DPA-75, Instruction Manual

Page: 8 / 10

Instruction Manual
DPA-75 Air Hyd. Power Unit - V1.4 www.durapac.com Page 8 of 10
7.0 Troubleshooting
Problem Cause Solution
Application does not extend,
move or respond to
pressurised fluid Overload condition

Remedy overload condition
Loose couplers

Tighten couplers
Faulty couplers

Replace couplers
Malfunctioning power unit

Contact a Durapac
authorised service centre

Repair or replace as
necessary
Inadequate air supply

Ensure air source can
dedicate 7.8 cfm @ 4-12
bar/60-175 psi
Application responds to
pressurised fluid, but system
does not maintain pressure Overload condition

Remedy overload condition
Malfunctioning power unit or
valve

Contact a Durapac
authorised service centre

Repair or replace as
necessary
Leaking application/connection

Replace
application/connection
Application responds slower
than normal Loose connection or coupler

Tighten connection or
coupler
Restricted hydraulic line or
fitting

Clean and replace if
damaged
Leaking application/connection

Replace
application/connection
Application does not return
fluid to power unit (i.e.
cylinder will not retract) Malfunctioning coupler/
damaged application

Secure load by other
means

Depressurise power unit
and hose

Remove coupler and/or
application

Repair or replace as
necessary
Application does not fully
extend (cylinder or spreader) Overfilled reservoir

Secure load by other
means

Depressurise power unit
and hose

Remove application

Drain fluid to proper level
Low fluid level in power unit

Secure load by other
means

Depressurise power unit
and hose

Remove application

Fill fluid to proper level
Poor performance Low fluid level in power unit

Ensure proper fluid level