ABAC А39В/200 СТ4 4116024166 - Инструкция по эксплуатации - Страница 19

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pressure  can  be  regulated  in  order  to  optimize  use  of  air-powered  tools 

operating on the knob with the valve open (pulling it up and turning it in a 

clockwise  direction  to  increase  pressure  and  counterclockwise  to  reduce 

this) (

fig. 8

). Once you have set the value required, push the knob down to 

lock it.

•  The  value  set  can  be  checked  on  the  gauge  (for  versions  equipped  with 

this, 

fig. 9

).

• 

Please check that the air consumption and the maximum working 

pressure of the pneumatic tool to be used are compatible with the 
pressure set on the pressure regulator and with the amount of air 
supplied by the compressor

.

•  When you have finished working, stop the machine, pull out the plug and 

empty the reservoir.

AIR RECEIVER (ON TANk-MOUNTED UNITS)

3

•  Corrosion  must  be  prevented:  depending  on  the  conditions  of  use, 

condensate  may  accumulate  inside  the  tank  and  must  be  drained  every 

day. This may be done manually, by opening the drain valve, or by means 

of the automatic drain, if fitted to the tank. Nevertheless, a weekly check of 

correct functioning of the automatic valve is needed. This has to be done 

by opening the manual drain valve and check for condensate (

fig. 13

).

•  Periodical  service  inspection  of  the  air  receiver  is  needed,  as  internal 

corrosion  can  reduce  the  steel  wall  thickness  with  the  consequent  risk 

of  bursting.  Local  rules  need  to  be  respected,  if  applicable.  The  use  of 

the air receiver is forbidden once the wall thickness reaches the minimum 

value  as  indicated  in  the  service  manual  of  the  air  receiver  (part  of  the 

documentation delivered with the unit).

•  Lifetime  of  the  air  receiver  mainly  depends  on  the  working  environment. 

Avoid  installing  the  compressor  in  a  dirty  and  corrosive  environment,  as 

this can reduce the vessel lifetime dramatically.

•  Do  not  anchor  the  vessel  or  attached  components  directly  to  the  ground 

or fixed structures. Fit the pressure vessel with vibration dampers to avoid 

possible fatigue failure caused by vibration of the vessel during use.

•  Use  the  vessel  within  the  pressure  and  temperature  limits  stated  on  the 

nameplate and the testing report.

•  No  alterations  must  be  made  to  this  vessel  by  welding,  drilling  or  other 

mechanical methods.

MAINTENANCE

4

•  The service life of the machine depends on maintenance quality.

• 

PRIOR TO ANy OPERATION SET THE PRESSURE SWITCH TO THE 

OFF POSITION, PULL OUT THE PLUG AND COMPLETELy DRAIN THE 
RESERVOIR.

•  Check  that  all  screws  (in  particular  those  of  the  head  of  the  unit)  are 

tightly drawn up (

fig. 10

). The check must be carried out prior to the first 

compressor starting.

TABLE 1 – TIGHTENING OF HEAD TENSION RODS

Nm

Min. torque

Nm

Max. torque

Screw M6

9

11

Screw M8

22

27

Screw M10

45

55

Screw M12

76

93

Screw M14

121

148

•  Clean  the  suction  filter  according  to  the  type  of  environment  and  in  any 

case  at  least  every  100  hours.  If  necessary,  replace  the  filter  (a  clogged 

filter impairs efficiency while an inefficient filter causes harsher wear on the 

compressor

 (figures 11a - 11b)

.

•  Change  the  oil  after  the  first  100  hours  of  operation  and  subsequently 

every 300 hours. Check the oil level periodically.

•  Use 

API CC/SC SAE 40

.  (For  cold  climates, 

API CC/SC SAE 20

  is 

recommended).  Never  mix  different  grade  oils.  If  the  oil  changes  color 

(whitish  =  presence  of  water;  dark  =  overheated),  it  is  good  practice  to 

replace the oil immediately.

•  After  topping  up,  tighten  the  plug  (

fig. 12

)  making  sure  that  there  are  no 

leaks during use. Once a week, check the oil level to assure lubrication in 

time (

fig. 7a

).

•  Periodically, check the tension of the belts which must have a flexion (f) of 

around 1 cm (

fig. 14

).

*

  Spent  oil  and  condensate 

MUST BE DISPOSED OF

  in  compliance  with 

protection of the environment and current legislation.

The compressor must be disposed in conformity with the methods 
provided for by local regulations

POSSIbLE FAULTS AND RELATED PERMITTED REMEDIES

5

Request the assistance of a qualified electrician for operations on electric components (cables, motor, pressure switch, electric panel, etc).

TABLE 2 – MAINTENANCE

FUNCTION

AFTER THE 

FIRST 100 

HOURS

EVERy 100 

HOURS

EVERy 300 

HOURS

Cleaning of intake filter and/
or substitution of filtering 
element

●

Change of oil*

●

●

Tightening of head tension 
rods 

The check must be carried out prior to the first 

compressor starting.

Draining tank condensate 

Daily

Checking the tension of 
the belts 

Periodically

FAULT

CAUSE

REMEDy

Air leak from the valve of the pressure switch.

Check valve does not perform its function 

correctly due to wear or dirt on the seal.

Unscrew the hex-shaped head of the check 

valve, clean the housing and the special rubber 

disk (replace if worn). Re-assembler and tighten 

carefully (

igures 15a-15b

).

Condensate drainage cock open.

Close the Condensate drainage cock.

Rilsan hose not inserted correctly in pressure 

switch.

Insert the Rilsan hose correctly inside the 

pressure switch 

(ig. 16)

.

Reduction of eficiency, frequent start-up. Low 

pressure values.

Excessively high consumption.

Decrease the demand of compressed air.

Leaks from joints and/or pipes.

Change gaskets.

Clogging of the suction ilter.

Clean/replace the suction ilter 

(

igures 11a-11b

).

Slipping of the belt.

Check belt tension 

(ig. 14).