Maintenance; Possible Faults And Related Permitted Remedies; Tightening Of Head Tension Rods - ABAC Air Compressor Instructions For Use Manual

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. 7). 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. 8).
• 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.
3

MAINTENANCE

• 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. 9). The check must be carried out prior to the first
compressor starting.
TABLE 1 – TIGHTENING OF HEAD TENSION RODS
Nm
Min. torque
Screw M6
Screw M8
Screw M10
Screw M12
www.abac.ru
Screw M14 121
• 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 10a - 10b).
• Change the oil after the first 100 hours of operation and subsequently
every 300 hours. Check the oil level periodically.
4

POSSIBLE FAULTS AND RELATED PERMITTED REMEDIES

Request the assistance of a qualified electrician for operations on electric components (cables, motor, pressure switch, electric panel, etc).
FAULT
Air leak from the valve of the pressure switch.
Reduction of efficiency, frequent start-up. Low
pressure values.
The motor and/or the compressor overheat
irregularly.
After an attempt to start the compressor, it stops
due to tripping of the thermal cutout caused by
forcing of the motor.
Nm
Max. torque
9 11
22 27
45 55
76 93
148
Check valve does not perform its function
correctly due to wear or dirt on the seal.
Condensate drainage cock open.
Rilsan hose not inserted correctly in pressure
switch.
Excessively high consumption.
Leaks from joints and/or pipes.
Clogging of the suction filter.
Slipping of the belt.
Insufficient ventilation.
Closing of air ducts.
Insufficient lubrication.
Start-up with head of the compressor charged.
Low temperature.
Voltage too low.
• 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. 11) making sure that there are no
leaks during use. Once a week, check the oil level to assure lubrication in
time (fig. 6a).
• Periodically (or after completing work if for more than an hour), drain the
condensate that forms inside the reservoir due to the humidity in the air
(fig. 12) in order to protect the reservoir from rust and so as not to restrict
its capacity.
• Periodically, check the tension of the belts which must have a flexion (f) of
around 1 cm (fig. 13).
TABLE 2 – MAINTENANCE
FUNCTION
Cleaning of intake filter and/
or substitution of filtering
element
Change of oil*
Tightening of head tension
rods
Draining tank condensate
Checking the tension of
the belts
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
CAUSE
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 (figures 14a-14b).
Close the Condensate drainage cock.
Insert the Rilsan hose correctly inside the
pressure switch (fig. 15).
Decrease the demand of compressed air.
Change gaskets.
Clean/replace the suction filter
(figures 10a-10b).
Check belt tension (fig. 13).
Improve ambient conditions.
Check and if necessary clean the air filter.
Top up or change oil
(figures 16a-16b-16c).
Release the compressor head by using the
pressure switch push button.
Improve ambient conditions.
Check that the mains voltage matches that of
the dataplate. Eliminate any extensions.
11
AFTER THE
EVERY 100
EVERY 300
FIRST 100
HOURS
HOURS
HOURS
•
•
The check must be carried out prior to the first
compressor starting.
Periodically and at the end of work
Periodically
REMEDY
G
B
•