5
BEFORE USE
Read, understand, and follow
all
printed materials carefully
before attempting to assemble or operate these pumps.
NOTICE:
E-Pumps are shipped dry. Add oil before use.
Electrical Connections:
Compare motor nameplate against power availability to
prevent motor burnout and dangerous electrical overloading.
The motors are wired for 110-125 volts unless otherwise
specified.
WARNING:
Motor, connections and remote on/off switch
are energized components containing line voltage!
Ensure supply is grounded and GFI protected!
Hydraulic Connections:
1. Make sure to use the hydraulic oil specified by the
manufacturer. Ensure oil level in reservoir is ~
2"
from top
of reservoir plate, with cylinders retracted and motor off.
2. Use of pressure gauge is strongly recommended. Attach a
pressure gauge between the pump and cylinder to monitor
pressure on cylinder.
3. Make sure coupler, hose, valve, gauge are tighten securely
to prevent accidental removal of components while in use.
Hoses
must
not be kinked or twisted.
NOTICE
:
Always secure threaded port connections with non-
hardening pipe thread compound. Take care not to introduce
compound into port orifices.
To ensure smooth operation, bleed air from the system by fully
advancing and retracting the cylinder several times.
4. Do not exceed the rated capacity of the equipment connected
to the pump. Ensure that all hydraulic equipment used with
this pump is rated at 10,000 psi or greater.
OPERATION
WARNING:
ALWAYS monitor pressure, force and load
position. Pressure may be monitored by means of an
optional manifold and gauge. Force may be monitored
by means of a load cell and digital indicator. Correct
application position can only be determined by the
operator of the equipment.
1. Check oil level, add oil if necessary.
2. Make sure system fittings and connections are tight and
leak free.
3. Place control valve lever in the middle (Neutral/Hold) position
to prevent accidental lifting or moving of load.
4. To
start
the motor:
Toggle the ON/OFF switch located on the control box to 'ON'
position
OR
for momentary use:
Leave control box switch in the 'OFF' position and toggle
remote ON/OFF pendant switch.
5. It is recommended to use to ON/OFF switch at the
control
box
to let the pump idle for a few minutes before putting
into operation.
WARNING:
This pump is for use with a double acting
cylinder ONLY! Connect two hoses from the pump to
both ports of a double-acting cylinder. This model can
not be used with single acting cylinders.
6. Use the control valve lever to control the direction of fluid
flow. These pumps are equipped with a 4-way 3-position
valve for use with double acting cylinder applications ONLY.
Refer to Figure 3 below for the flow path.
7. Always monitor the pressure, load and position.
8. Do not exceed the rated capacity of the equipment
connected to the pump. To reduce system component
stress, material fatigue, and the risk of personal injury
and property damage, never load a hydraulic application
(cylinder, spreader, etc.) to more than 80% of its rated
capacity.
9. Shift the control valve until the desired pressure, load or
position is reached.
NOTICE:
Do not continue to operate pump after cylinder
plunger is fully extended or retracted.
10. To
turn off
the motor: Toggle the ON/OFF switch on the
control box to 'OFF' position.
11. Depressurize all connections before disconnect. If you
have any questions, call BVA Technical Service (888)-
332-6419.
TO AVOID ELECTROCUTION HAZARD:
• Connect ONLY to properly grounded electrical
source. Connect to GFI outlet only. For use
in dry conditions only.
• Avoid using extension cords. Extension cord
lengths up to 25 ft shall be SJT-14X3 or
heavier. For cords up to 50 ft, use SJT-12X3
or heavier. For extension cord lengths up to
100 ft, use SJT-10X3 or heavier. NEVER use
a 3 prong adapter.
!
DANGER
Port A
Port B
Position 1:
Pressured
oil flows to port A, port
B returns flow to tank.
Position 3:
Pressurized
oil flows to port B, port
A returns flow to tank.
Position 2:
Neutral,
ports A & B are closed.
Hold Position
Port A Port B
Port A Port B
Port A Port B
P T
Figure 3 - Schematic flow path, valve position of 4-way, 3-position valve for Double Acting Cylinder
1
2
3
P T
P T
!
!
!
