2
Installation/Operation & Maintenance Manual
GM
-
6140H 2-POST LIFT
1.3 LIFTING UNIT
It consists of:
◆
2 hydraulic cylinders
(Fig. 2-8)
, the carriages
run by chains and synchronized by steel cables.
◆
1 hydraulic unit
(Fig. 2-7)
, on the command
side, to set the cylinders run.
1.4 HYDRAULIC POWER UNIT
The hydraulic power unit consists of:
◆
An electric motor
(Fig. 3-1)
;
◆
A geared hydraulic pump
(Fig. 3-2)
;
◆
Descent hand-valve equipped with a manual oil
drain valve;
(Fig. 3-3)
(see the use and
maintenance chapter)
◆
A maximum pressure valve;
◆
Oil tank
(Fig. 3-4)
;
◆
An oil delivery and return flexible pipe to the
cylinders feeding circuit.
Note: The oil delivery pipe may be under
pressure.
Fig. 3 Hydraulic Power Unit
1.6 SAFETY DEVICES
The safety devices include:
◆
Mechanical safety device for carriage;
◆
Arms locking system;
◆
A synchronous device to control the carriages
movement;
◆
End limit switch;
◆
General electric safety devices;
◆
General hydraulic safety devices.
These safety devices will be described in further
detail in the following chapters.
Содержание GM - 6140H
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