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5. Problems with the Injector
These problems are usually detected while using the injection valve. Leaky injection valves are discussed in Section 3 (Leaks).
A. Manual Injector, Hard to Turn
| Possible Cause |
Solution |
|
| 1. Damaged rotor seal |
1. Rebuild or replace valve |
| 2. Rotor too tight |
2. Adjust rotor tension |
B. Manual Injector, Hard to Load
| Possible Cause |
Solution |
|
| 1. Valve misaligned |
1. Adjust alignment |
| 2. Blocked loop |
2. Replace loop |
| 3. Dirty syringe |
3. Clean or replace syringe |
| 4. Blocked lines |
4. Clear or replace lines |
C. Autoinjector, Will Not Turn
| Possible Cause |
Solution |
|
| 1. No air pressure (or power) |
1. Supply proper pressure (power) |
| 2. Rotor too tight |
2. Adjust |
| 3. Valve misaligned |
3. Adjust alignment |
D. Autoinjector, Other Problems
| Possible Cause |
Solution |
|
| 1. Blockage |
1. Clear or replace blocked portion |
| 2. Jammed mechanism |
2. See service manual |
| 3. Faulty controller |
3. Repair or replace controller |
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