7
MAINTENANCE
1. Inpect and replace damaged, kinked, twisted, stretched or rusty chain.
2. Inspect hoses and connections. Replace damage components immediately with Porto-Power Blackhawk
replacement parts only.
3. Tighten connections as needed. Use non-hardening pipe thread compound when servicing connections.
4. Use only good quality hydraulic fluid. We recommend Hein-Werner HW93291 or equivalent.
Lubrication
Use a light machine oil to lubricate pivot points, hinges and all joints of post that move under heavy load.
Adding Hydraulic Fluid
1. Depressurize and disconnect hydraulic hose from application.
2. With pump in its vertical position, remove the reservoir cap located on the reservoir.
3. Use a small funnel to fill reservoir to within 3/4" (19mm) of the opening.
Note:
Use only a good quality hydraulic jack fluid.
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.
4. Wipe up any spilled fluid. Reinstall the reservoir cap.
Changing Hydraulic Fluid
For best performance and longest life, replace the complete fluid supply at least once per year.
1. Depressurize and disconnect hydraulic hose from application.
2. Repeat #2 above, then pour used fluid into a sealable container.
4. Use a small funnel to fill reservoir to within 3/4" (19mm) of the opening.
5. Dispose of fluid in accordance with local regulations.
6. Fill with a good quality hydraulic oil as recommended above. Reinstall reservoir cap.
Storage
1. Depressurize and disconnect hydraulic hoses from ram.
2. Wipe clean and store in dry environment. Avoid extream temperatures.
TROUBLESHOOTING
Symptom
Possible Causes
Corrective Action
Ram will not extend
System does not maintain
pressure
Will not lift to full extension
•
Overload condition
•
Fluid level low
•
Fluid level low
•
Air trapped in system
•
Hydraulic unit malfunction
•
Remedy overload condition
•
Replace ram and / or pump
•
Ensure proper fluid level
•
Ensure proper fluid level
•
With ram fully retracted, remove oil
filler screw to let pressurized air
escape, then reinstall oil filler screw
Poor performance
Ram does not return fluid to
pump (i.e. ram will not retract)
•
Reservoir overfilled
•
Ram damaged
•
Malfunctioning coupler,
damaged application
•
Drain fluid to proper level
•
Replace ram
•
Secure load by other means.
Depressurize pump and hose,
remove coupler and/or application,
then replace with a new one.
