Atlas Copco GA160

2920 1251 02
30
Instruction book
Notes
1. In very dusty surroundings it may be necessary to check and replace the air filters more frequently. Consult Atlas Copco.
2. Use Atlas Copco filters.
3. The separator element must be replaced two-yearly or each 8000 running hours or when the pressure difference over the
element exceeds 0.8 bar (12 psi). Check the pressure drop when the compressor is running loaded and preferably with a
stable working pressure.
4. Any leak should be attended to immediately.
5. Damaged flexibles must be replaced immediately.
6. See "User manual for Elektronikon regulator", section "Submenu TEST".
7. Preferably to be carried out by an Atlas Copco Service representative.
8. If the outlet temperature of the compressor elements should be continuously higher than 100°C (212°F), consult Atlas
Copco.
4.2 Motors
4.2.1 Fan motors (GA only)
GA132 up to -315 have two fan motors (M2 and M3-Fig.
14a). GA90 and -110 have one fan motor (M2). The bearings
of the motors must be replaced after 25,000 operating hours.
4.2.2 Drive motor (M1-Fig. 1a)
Stop the compressor before greasing.
The bearings must be regreased every 4000 operating hours with
a lithium-soap-based grease according to DIN 51 825 K3k.
Quantity: 50 g (1.7 oz) per bearing. The lubrication points are
marked.
4.3 Oil specifications
4.3.1 Roto-injectfluid
It is strongly recommended to use Atlas Copco Roto-injectfluid.
This oil has a long service life and ensures optimum lubrication.
Notes
- Never mix oils of different brands or types.
4.4 Oil change (Figs. 1a, 13 and 14b)
1. Run the compressor until warm. Stop the compressor and
switch off the voltage. Wait a few minutes and
depressurize by unscrewing plug (FC1) only one turn to
permit any pressure in the system to escape.
2. Drain the oil by removing the drain plugs. Plugs are
provided on the air receiver (DP1), oil stop valve (DP2)
2), check valve (DP3) 2), oil cooler (DP4) 3) and gearbox
(DP5). Tighten the plugs after draining.
3. Remove filler plug (FC1). Fill the air receiver with oil
until the level reaches the filler neck. Reinstall and
tighten plug (FC1).
4. Run the compressor loaded for a few minutes to allow
the oil cooler by-pass valve(s) to open. Stop the
compressor and wait a few minutes.
5. Depressurize the system by unscrewing plug (FC1) only
one turn to permit any pressure in the system to escape.
Remove filler plug (FC1). Fill the air receiver with oil
until the level reaches the filler neck. Tighten plug (FC1).
6. Reset the oil service warning using key <<Reset>> in
submenu <<Service>>. 1)
4.5 Oil filter change (Figs. 1)
1. Stop the compressor, switch off the voltage and
depressurize by unscrewing plug (FC1) only one turn to
permit any pressure in the system to escape.
2. Remove oil filters (OF).
1) See "User manual for Elektronikon regulator", section "Submenu
SERVICE".
2) On GA/GA W 200 up to -315 one plug for each valve.
3) Two plugs on GA W 132 up to -315.