Period
(1)
Running
hours
(1)
Operation
Every 3
months
(2)
500
Inspect the air inlet filter(s) (AF).
Inspect the pre-filter mats on the cooling air intake openings (if fitted).
Check for cleanness and damage. Clean if dirty, replace if damaged.
Clean the compressor and check the air cooler . If necessary, clean by
air jet.
After the first 500 running hours or when the belt has been replaced,
check the belt tension and adjust if necessary according to the
information on the label.
Every 6
months
--
• Manually operate the safety valve.
• Check for any damaged wiring or loose connections.
• Check for air leaks.
Every 6
months
(2)
--
Full-Feature units:
• If dirty, brush or blow off the finned surface of the dryer's
condenser.
• Inspect and clean the electronic drain:
• Functioning of the drain can be checked by pushing the TEST
button of the drain.
• Cleaning of the drain filter can be done by opening the manual
drain valve for a few seconds.
Yearly 2500
• Replace the air inlet filter(s) (AF) and the pre-filter mats on the
cooling air intake openings (if fitted).
(2)
• Test the safety valve.
• Have temperature protection and motor overload tested.
• Check tension and condition of the V-belt(s).
• Compressors with desiccant dryer:
Replace the PD 20
+
filter cartridge.
Every 2
years
5000
• Replace the V-belt(s).
• Replace check valve.
Every 2
years
5000
8 bar and 116 psi compressors:
Have the orbiting scroll bearing greased.
(3)
Every 2
years
5000
10 bar and 145 psi compressors:
• Replace the element outlet pipe and the plastic insert (only on SF
2
+
and SF 4
+
). See section Outlet pipe replacement.
Note: From S/N API 744 000 onwards, a new version of
compressor element is used on SF 4
+
. This new element no
longer has a plastic insert in the outlet pipe and preventive
replacement is no longer required.
• Clean fan (FN1). See section Flow diagram, fan duct and element
cooling fins.
(2)
• Clean the motor fan grid.
• Have orbiting scroll bearing and pin crank bearings greased.
(3)
• Replace tip seals and dust seal.
(4)
Instruction book
2920 7219 10 63
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