Durapac DPA-18, Instruction Manual

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Instruction Manual
DPA-18 Air Hyd. Power Unit - V1.0 www.durapac.com Page 9 of 11
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
Pump not primed

Prime pump as per 4.7 -
Priming the Pump in the
Installation Section
Fluid intake filter
contaminated

Remove reservoir, clean intake
filter and reinstall
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
Inadequate air supply

Ensure air source can dedicate
7.8 cfm @ 4-12 bar/60-175 psi
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
Excess oil spray from muffler Air lubricator is set too high

Set at one drop per minute