BVA Hydraulics PAR1703, PARD1701, PARD1703, PARM1703 - Manual (Page 7)

TROUBLESHOOTING GUIDE
The following information is intended as an aid in determining if problem exists. Pumps should be repaired only by authorized
BVA Service Center. For repair service, contact service center in your area.
7
Symptom Possible Causes Corrective Action
Application does not extend, move or
respond to pressurized fluid
• Overload condition
• Loose couplers
• Faulty couplers
• Pump malfunction
• Inadequate air supply
• Remedy overload condition
• Tighten couplers
• Replace couplers
• Contact service center
• Ensure air source can dedicate:
44 CFM @ 80 psi for 1.7 hp pumps
Application responds to pressurized
fluid, but system does not maintain
pressure
• Overload condition
• Pump or valve malfunction
• Application/connection leaking
• Remedy overload condition
• Contact Service Center
• Replace application/connection
Application responds slower than
normal
• Loose connection or coupler
• Restricted hydraulic line or fitting
• Application/connection leaking
• Tighten connection or coupler
• Clean and replace if damaged
• Replace application/connection
Application does not return fluid to
pump (i.e. cylinder will not retract)
• Malfunctioning coupler, damaged
application
• Secure load by other means-
Depressurize pump and hose, remove
coupler and/or application, then renew or
replace
Application does not fully extend
(cylinder or spreader)
• Reservoir overfilled
• Fluid level in pump is low
• Secure load by other means-
Depressurize pump and hose, remove
application, then drain fluid to proper level
• Secure load by other means-
Depressurize pump and hose, remove
application, then fill fluid to proper level
Poor performance • Fluid level in pump is low • Ensure proper fluid level
MAINTENANCE
Important: Use only good quality hydraulic 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.
We recommend Mobil DTE 13M or equivalent.
1. Inspect hoses and connections daily. Replace damaged
components immediately.
2. Tighten connections as needed. Use non-hardening pipe
thread compound when servicing connections.
Adding Hydraulic Fluid
1. Depressurize and disconnect hydraulic hose from
application/ cylinder.
2. With pump in its upright, horizontal position, remove the
air vent plug located on the top plate of the reservoir.
3. Use a small funnel to fill the oil to within 3/4" (19mm)
of the opening.
4. Wipe up any spilled fluid and reinstall the air vent plug/
reservoir cap.
Changing Hydraulic Fluid
1. For best results, change fluid once a year or every 300
hours of use.
2. Repeat # 2 above, then pour used fluid into a sealable
container.
3. Dispose of fluid in accordance with local regulations.
4. Fill with a good quality hydraulic fluid as recommended
above. Reinstall air vent plug/ reservoir cap.
Lubrication
When pump is operated on daily basis, the manufacturer
recommends installing an inline oiler and air dryer. Use
SAE grade oil (5W to 30W).
Storage
1. When not in use, depressurize and disconnect hydraulic
pump from application.
2. Wipe clean, thoroughly and store in clean, dry
environment. Avoid temperature extremes.
3. For transportation or long storage, replace the air vent
plug with shipping plug.