BGS technic KG
Bandwirkerstr. 3
D-42929 Wermelskirchen
Tel.: 02196 720480
Fax.: 02196 7204820
www.bgstechnic.com
© BGS technic KG, Copying and further use not allowed
OPERATION
Raising the Jack
•
Close the release valve by turning the handle clockwise as far as it will go.
•
Block the vehicle's wheels for lifting stability.
•
Refer to the vehicle manufacturer owner's manual to locate approved lifting points on the vehicle.
Position the jack so that the saddle is centered and will contact the load lifting point firmly.
•
Pump jack handle until saddle nears contact with the vehicle. Check to see that the saddle is
centered and will contact the load lifting point firmly.
•
Continue to pump the jack handle to lift the vehicle to the desired height. After lifting, support the
load with appropriately rated vehicle support stands before working on the vehicle.
Lowering the Jack
•
Carefully open the release valve by slowly turning the handle counterclockwise.
How it works with closed release valve
•
An upward stroke of the jack handle draws oil from the reservoir tank into the plunger cavity.
Hydraulic pressure holds the valve closed, which keeps the oil in the plunger cavity.
•
A downward stroke of the jack handle releases oil into the cylinder, which forces the ram out. This
raises the saddle.
•
When the ram reaches maximum extension, oil is bypassed back into the reservoir to prevent an
over extended ram stroke and possible damage to the jack.
TROUBLESHOOTING
Jack will not
lift load
Jack will not
hold load
Jack will not
lower
Poor jack
lifting
Causes and
solutions
x
Release valve is not completely
Turn clockwise
x
x
Air is in hydraulics
Purge air from system
x
x
x
Low oil Level
Add oil as required
x
Oil reservoir is overfilled;
Drain excessive oil
Lubricate moving parts
x
x
x
Power unit malfunctioning
Replace the power unit
AIR PURGE PROCEDURE
During shipment or after oil refill, air may get into the hydraulic system causing poor lifting
performance. Then system air purge is required as follows:
1. Turn the release valve fully counterclockwise to fully open the release valve.
2. Pump handle rapidly several times.
3. Turn the release valve clockwise to close the release valve.
4. Pump handle until the lift arm reaches maximum height and continue to pump several times to
remove trapped air in the ram.
5. Turn the release valve fully counterclockwise to lower lift arm to lowest position. Use force on
saddle if necessary.
6. Turn the release valve clockwise to closed position and check for proper pump action. It may be
necessary to perform the above steps more than once to assure air is evacuated totally.
