Checking Suction Valve; Servicing Bearings Of Electric Motor; Fault Handling; Faults And Corrective Actions - Comprag A Serie Bedienungsanleitung

5.9 Checking suction valve

In order to access the intake valve, the air filter has to be removed in accordance with
section 5.5.
Then open the air throttle by hand, ensuring that it has a smooth stroke and can be opened fully.
If the air throttle jams or doesn't operate fully, then replace the valve with a new one.

5.10 Servicing bearings of electric motor

When the compressor is used, fresh viscous lubricant (formulated for rolling bears) should
be added to the motor's bearings.
Lubricant should be added using a special syringe for viscous lubricants through lubricators
accommodated in the motor's bearing caps.
The volume of lubricant added can be calculated using the formula:
D (mm)x0.005=M
2
motor shaft
Do not over-lubricate the bearings beyond the standard level as all excess lubricant will be
squeezed out of the bearings into the motor when the motor is running.

6. Fault handling

6.1 Faults and corrective actions

Problem
The compressor starts up with
lag. There is a slow build up in
the electric motor's speed.
There's a whistling during the
compressor's operation.
The compressor won't start.
There's a temperature block on
the control unit's display.
38
(lubricant mass)
Possible faults
The belt is overtightened.
The oil is thick.
The belt is slipping.
The ambient air temperature in
the facility does not meet the
required temperature (below +5
°C or above +40 °C).
(g).
Corrective actions
Tighten the belt with the rel-
evant load.
Replace the oil.
Tighten the belt with the appro-
priate tensile force (see section
5.3 Checking drive belt).
Ensure the necessary ambi-
ent air temperature where the
compressor is installed.
Version 2.1