37
1
2
7 OPERATION
7.1 Preliminary controls
In case of storage longer than 6 months check the preservation of the unit
Check the transmission alignement and the belt tension
Check the rotation by hand of the compressor
Check the correct position of the safety devices
Clean the pipes and remove eventual obstructions
Check the connections of the pipes with the compressor unit
Fill the compressor with lubricating oil as indicated in paragraph 8.2
7.2 First start up
WARNING : The personnel must wear the noise protection devices in accordance with EN 352-1.
Open the shut-off valve on the discharge pipe or on the suction pipe.
Remove the front panel of noise hood or open the doors
WARNING :
Robox 2 and 3: Remove the motor safety transport device 1 unloosing
the locking nuts 2, storing it for the following service operations (see par
8).
Robox 4 and 5: Loosen locking nuts 2 releasing the support disc 2
Lock the nuts 2 in the bottom side of the rod in order to allow the movement of the motor rails.
Check the direction of rotation of the motor :
clockwise viewed from the motor shaft
with a short impulse of
current
WARNING : Do not rotate the compressor in the wrong direction for more than a few revolutions.
Check the direction of rotation of the fan,
counterclockwise seen from the motor
Close the moise enclosure
Start ROBOX SCREW for about 1 minute and then stop it and check that his deceleration is even and without vibration.
WARNING : If the compressor shows irregular rotary motion look for causes and remove them.
Start ROBOX SCREW and stop it by the emergency stop push button to check its operation
WARNING : The use of ROBOX SCREW with the emergency stop push button not operating is forbidden, find
the causes and remove them
In case auxiliary panel is supplied turn the key switch on the rear ancillary panel to reset the emergency system, the lamp must be off
Start ROBOX SCREW
Set the closing time of the starting valve VSM (only for the –VSM version see par. 7.6)
Operate ROBOX SCREW for about three hours at contract conditions and check that there are no strange noises, vibrations, oil leakage or
overheating, if such problems are found stop ROBOX SCREW and contact ROBUSCHI or an authorized distributor.
After the first three hours of operation carry out the checks forecast in the maintenance plan at paragraph 8.1
7.3 Stopping ROBOX SCREW
WARNING : in case of danger stop ROBOX SCREW with the emergency red button
7.3.1 Standard stopping
If possible remove the differential pressure on the ROBOX SCREW
Stop the electric supply
If on the discharge pipe is installed an heat exchanger to cool down the conveyed gas temperature provide, if possible, an operation period
of about 2 minutes with no load by mean of a by-pass pipe in order to avoid the return of the condensate inside the compressor
In case the compressor must be stand still for a period longer than 6 months insulate the unit from the plant (see paragraph 8) and protect
the internal as described in the paragraph 5.3
7.3.2 Black out
In case of black out ROBOX SCREW is not damaged and not induces any risk for the personel.
WARNING
: During the black-out do not to carry out any staff service on ROBOX SCREW
When the electric supply is restored start the ROBOX following the procedures of the plant
Robox2-3
Robox4-5
1
2
Summary of Contents for ROBOX SCREW Series
Page 55: ...55...
