Instruction Manual
DPA-38D Air Hyd. Power Unit - V1.0
www.durapac.com
Page 6 of 10
5.1
Connect air supply to the 1/4" NPT air nipple.
5.2
Remove manifold plug, connect to hydraulic hoses and suitable application.
5.3
Shift the valve to desired position. There are three positions available, refer to Figure 2
below for the flowpath.
Figure 2 – Flowpath of the valve positions and operations
5.4
After shifting the valve, press on the foot pedal until desired pressure, load or position
is reached.
Note:
Do not continue to operate the power unit after the cylinder plunger is fully
extended or retracted.
5.5
Releasing the foot pedal will stop the power unit flow.
6.0
Maintenance
IMPORTANT:
Check oil level regularly
Use only good quality hydraulic fluid.
Do NOT
use brake fluid, transmission fluid,
turbine oil, motor oil, alcohol, glycerine etc. Use of anything other than good quality
hydraulic oil will void warranty and damage the power unit, hose, and application. We
recommend Durapac Hydraulic Oil or equivalent
Equipment must only be serviced by a qualified hydraulic technician. For repair service,
contact your local Durapac authorised service centre
Damage to hydraulic hoses may not be detected during visual inspections. For this
reason, Durapac recommends that hydraulic hoses be replaced on a regular basis
Tighten connections as needed. Use non-hardening pipe thread compound when
servicing connections
Dirt, sand, etc. will quickly ruin any hydraulic system. Ensure that couplings are clean and
free of foreign matter. After each use, clean couplings and attach dust caps.
Maintenance is required when wear or leakage is noticed. Periodically inspect all
components to detect any problem that may require service and maintenance.
Port A Port B
Port A Port B
Port A Port B
Position 1:
Pressurized oil
flows to port “B”, port “A”
returns flow to tank.
P T
P T
P T
Position 2:
Neutral, portss
“A” and "B" are closed. Hold
Position.
Position 1:
Pressurized oil
flows to port “A”, port “B”
returns flow to tank.
1
2
3
Port A Port B
