User manual

Industrial Air Division
2920 1163 04
22
3.8 Service kits
Service kits are available offering the benefits of genuine Atlas
Copco parts while keeping the maintenance budget low. The kits
comprise all parts needed for servicing.
Service kit for oil filters and air filters Ordering number
GA30 all versions, 2901 0325 00
GA37 10-13 bar,
GA37 125-150-175 psi,
GA45 13 bar,
GA45 175 psi
GA37 7.5 bar, GA37 100 psi, 2901 0326 00
GA45 7.5-10 bar, GA45 100-125-150 psi
Note: Atlas Copco Roto-injectfluid (see section 3.4.1) can be
ordered in following quantities:
Quantity Ordering number
15-litre can 2901 0086 01
25-litre can 2901 0001 01
209-litre drum 2901 0045 01
Service kit for the oil separator Ordering number
GA30/45 2901 0213 00
3.6 Oil filter change (Fig. 12)
To change the filter without spilling oil:
1. Run the compressor unloaded for 3 minutes.
2. Stop the compressor and depressurize by unscrewing oil filler
plug (FC) one turn to permit any pressure in the system to
escape.
3. Remove vent plug (VP-Fig. 2a or 2b), wait 5 minutes, remove
drain plug (DP2-Fig. 2b) and catch the oil in a receptacle.
4. Remove oil filter (OF-Fig. 14a).
5. Clean the filter seat on the manifold. Oil the gasket of the new
element. Screw the element into place and tighten firmly by
hand.
6. Fill the receiver (AR) with oil until the level reaches the filler
plug.
7. Tighten plugs (FC, VP and DP2).
8. Reset the oil filter service warning. 1)
3.7 Storage after installation
Run the compressor twice a week until warm. Load and unload the
compressor a few times.
If the compressor is stored without running from time to time,
protective measures must be taken. Consult Atlas Copco.
4.1 Air filter (AF-Fig. 2a)
4.1.1 Recommendations
1. Never remove the element while the compressor is running.
2. For minimum compressor down-time, replace the dirty element
by a new one.
3. Discard the element when damaged.
4.1.2 Servicing
1. Release the snap clips and remove the dust trap and air filter
element. Clean the trap.
2. Refit the new element and the trap. Check that the clips are
properly engaged.
3. Reset the service indicator (VI-Fig. 14b) by pushing the knob in
the extremity of the body.
4. Reset the air filter service warning. 1)
1) Consult the User manual for the electronic regulator, section
"Service submenu".
4.2 Coolers
Keep the coolers clean to maintain the cooling efficiency.
On air-cooled compressors:
To facilitate cleaning of the coolers, side panel (4-Fig. 1) can be
removed, giving access to an inspection hole in the fan cowl
through which the inlet side of the coolers can be inspected and
cleaned.
First loosen bolts (4-Fig. 14a), lower bracket (3-Fig. 14a) until it
touches air receiver (AR-Fig. 14a) and then tighten bolts (4). In
this way, the coolers are supported before the side panel is
removed.
Remove any dirt from the coolers with a fibre brush. Never use a
wire brush or metal objects. Then clean by air jet in reverse
direction of normal flow. If it should be necessary to wash the
coolers with a cleansing agent, consult Atlas Copco.
4 Adjustments and servicing procedures