Service parts for the QAS 108
Grouped by system, with how many of each the parts manual calls for.
Belts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Voltage options | 120/240 V, 120/208 V, 240 V, 480 V |
| Phase | 3/N/PE |
| Power factor | cos phi 0.85 |
| Battery group | 12V |
| Battery voltage | 12V V |
| Battery quantity | 8 |
| Dry weight | 1200 kg |
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 2000 hr | |||
| Fuel filter | — | 500 hr | |||
| Oil filter | — | 250 hr | |||
| Battery | — | ||||
| Belt | Belt | 556677 | Amazon eBay | ||
| Coolant | — | ||||
| Coolant filter | Coolant filter | — | |||
| Oil | — | 50 hr | |||
| Spark plug | — | 500 hr |
Common questions
What kind of fuel does the Atlas Copco QAS 108 run on?
The Atlas Copco QAS 108 runs on diesel.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Alternator does not excite. | Blown fuse. | Replace fuse. |
| After being excited alternator does not excite. | Insufficient residual voltage. | |
| Low voltage at no load. | No residual voltage. | |
| High voltage at no load. | Connections are interrupted. | Check connection cables as per attached drawings. |
| Lower than rated voltage at load. | Voltage potentiometer out of setting. | Reset voltage. |
| Higher than rated voltage at load. | Intervention by protection. | Check rpm. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Atlas Copco QAS 108 troubleshooting guide (45 entries) →
Parts
9| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 112233 | Spark Plug | 1 | Spark plug | Amazon eBay |
| 223344 | Oil Pump | 1 | Pump | Amazon eBay |
| 334455 | Fuel Pump | 1 | Pump | Amazon eBay |
| 445566 | Coolant Pump | 1 | Pump | Amazon eBay |
| 556677 | Belt | 1 | Belt | Amazon eBay |
| 667788 | Seal | 1 | Seal | Amazon eBay |
| 778899 | Gasket | 1 | Gasket | Amazon eBay |
| 889900 | Thermostat | 1 | Thermostat | Amazon eBay |
| 990011 | Impeller | 1 | Impeller | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| No/full load | 6.8 | 7.9 | |
| Prime | 6.8 | 1.8 | |
| Standby | 1.0 | 0.26 |
Available documents
Reference — Equipamentos para Aluguer tcm55-120599Parts manual — Atlas Copco (Atlas Copco)Service manual — QAS 108 - 138 JD Inst (Atlas Copco)Service manual — QAS 108 PD Inst 1997 (Atlas Copco)Service manual — QAS 108 PD USA Inst 1998 (Atlas Copco)