10
BA550401-en
2
Description
2.1
Design and Operating Principle
These manually operated hydraulic, combined hydraulic / pneumatic or pneumatic pit
jack / axle and transmission jacks are lifting devices for lifting vehicles and power
trains. The pit jacks can be moved in the longitudinal and transverse direction on a
chassis, the axle and transmission jack using a chassis running on the ground using
rollers.
The pump unit includes load valves, suction valves and overload valves. High and low
pressure hand pumps are installed according to the type as per the list of spare parts.
The self-closing countersunk screw is also mounted on the pump block. An overload
system is installed for automatic venting.
The load carrying equipment consists of a supporting plate attachment (support plate /
gearbox support). For more specific loading points on vehicles, other adaptors from
our range of accessories can be attached.
In hydraulic-pneumatic pit jacks with rapid lift control, the oil in the tank is pressurised
with compressed air. The oil is thus displaced and the piston rises quickly to the point
of load.
In the version using an air motor (LM), the motor is positioned on the right on the high
pressure side. It is powered by compressed air and pumps the oil.
2.2
Compressed Air Supply
NOTICE
Connect pneumatically controlled jacks to a suitable compressed air supply. They may
only be operated with dry, lubricated air according to ISO 8573-1:2010 [1:4:2]. Install a
service unit in the compressed air line immediately upstream of the equipment.
Pit jacks with a load capacity of 14.5 t require a connection pressure of 12 bar, all other
pit jack models must be operated with 10 bar.
2.3
Specifications
Load capacity [t]
5.5
11.0
14.5
16.5
20.0
30.0
Lifting height [mm]
750
450
750
450
750
450
750
750
750
Net weight max. [kg]
240
195
240
195
240
195
260
230
365
Ambient temperature ........................................................................................................ 0…40 °C
Noise emission ................................................................................................................ < 70 dB(A)
