26
3. Adjust the lower speed
You can adjust the lowering speed of the lift if needed: screw the throttle valve
clockwise to decrease the lowering speed, or counterclockwise to increase the
lowering speed.
4.
Test with load
After finishing the above adjustments, test run the lift with a load. Run the lift in low
position for several times first, raising and lowering, make sure the lift can raise and
lower synchronously and the safety device can lock and release synchronously. Then
test run the lift to full rise. If there is anything improper, repeat the above
adjustment and re-test operation.
NOTE: Lift may vibrate when first used, after lifting it with a load several times the
air will bleed and the vibration should disappear automatically.
Hydraulic System
Throttle valve
Fig. 37
1.Filter
2.Gear Pump
3.Motor
4.Relief Vavle
5.Release Valve
6.Check Valve
7.Throttle Valve
8.Cylinder
Throttle valve
Fig. 36
Adjust clockwise, decrease lowering speed
Counterclockwise, increase lowering speed
