BVA Hydraulics J50100 - Manual (Page 5)

5
Figure 2 - Horizontal and Vertical orientations
OPERATION
WARNING: ALWAYS monitor pressure, load or position
using suitable equipment. Pressure may be monitored by
means of an optional manifold and gauge. Load may be
monitored by means of a load cell and digital indicator.
NOTICE: Any attachment that is not loaded centrally, as
through the centerline of the ram, is considered to be “offset”.
When extension tubes and/or offset attachments are used,
the rated capacity is always reduced by 50% for each tube or
offset attachment connected.
1. Pump may be used in horizontal and vertical position as
illustrated on figure 2 below.
Changing Hydraulic Oil
For best performance and increased system life, replace the
complete fluid supply at least once per year.
1. With ram fully lowered, remove the oil filler screw from the
pump reservoir as above.
2. Lay the pump on its side and drain the fluid into a suitable
container.
NOTICE: Dispose of hydraulic fluid in accordance with local
environmental regulations.
3. Set pump in its level upright position.
4. Fill with good quality jack oil to within 3/8" of the oil filler
screw hole opening. Reinstall oil filler screw.
Lubrication
A coating of light lubricating oil to pivot points and hinges will
help to prevent rust and assure that pump assemblies move
freely.
Cleaning
Periodically check the pump piston and ram for signs of rust or
corrosion. Clean as needed and wipe with an oily cloth.
NOTICE: Never use sandpaper or abrasive material on ram
or pump piston.
Storage
When not in use, store with the pump piston and ram fully
retracted.
How to remove faulty coupler:
If ram does not retract,:
1. Secure load by other means.
2. Depressurize pump and hose
3. Remove the ram from application.
4. Disconnect and replace with new coupler.
NOTICE: Do not attempt to grasp ram with pliers or wrench
without first wrapping the jaws of such tool with rags or similar
padding.
How to bleed air from system:
1. Place pump at a higher elevation than the hose and ram as
shown in figure 3 below.
2. Operate pump to fully extend and retract the ram 2 or 3
times. The objective is to force the air bubbles up hill and
back to the pump reservoir.
3. To bleed the air from pump reservoir, simply open the oil
filler screw. Re-install after bleeding.
!
2. Locate and close release valve by turning it clockwise until
firmly closed. (Do not over tighten)
3. Operate by pumping handle. This will send fluid from the
pump reservoir into the high pressure hose assembly and
into the ram assembly.
4. Continue pumping until ram reaches desired position.
WARNING: NEVER operate pump with release valve
closed and disconnected from application. If operated
in this condition, the hose and connections become
pressurized. This increases burst hazard. Damage may
occur to pump and its components.
5. To Release Pressure on work piece: Slowly, carefully turn
the release valve counter-clockwise until ram retracts to
desired position. Never turn release valve more than 1/2 full
turn. The ram return system is spring loaded and the release
valve system is metered, allowing controlled retraction of
the ram.
MAINTENANCE
1. Inspect hoses and connections daily. Replace damaged
components immediately with BVA Hydraulics Replacement
Parts only.
2. Tighten connections as needed. Use pipe thread sealing
compound when servicing connections.
3. Use only good quality hydraulic fluid. Mobil DTE 13M
or equivalent is recommended. Never use brake fluid,
transmission fluid, turbine oil, motor oil, alcohol, glycerin
etc. Use of other than good quality hydraulic oil will void
warranty and damage the pump, hose, and application.
Adding Hydraulic Oil
1. With ram fully lowered, set pump unit in its normal, level
position. Locate and remove oil filler screw.
2. Fill until oil is within 3/8" of the oil filler screw hole opening,
re-install oil filler screw.
!
Figure 3 - Illustration to bleed air from system