Parts Replacement
When ordering replacement parts, please be sure to include the following information:
1)Pump model number
2)Part number
3)Quantity
4)Shipping instructions
Order parts from your local Zenith representative or direct from Zenith.
Troubleshooting
Trouble | Probable Cause | Remedy | |
|
|
|
|
Pump will not turn | 1) | Low pump | Check thermocouple and control |
|
| temperature | loop for proper setting/operation. |
|
|
| Allow sufficient |
|
|
|
|
| 2) | Drive malfunction | Verify drive is powered. Check to |
|
|
| assure all alarm circuits are clear. |
|
|
| Check drive motor current and |
|
|
| speed settings. Check all drive |
|
|
| couplings. |
|
|
|
|
| 3) | Process |
|
|
| conditions changed | Check process conditions for |
|
|
| proper melt temperature, pres- |
|
|
| sures, viscosities and materials. |
|
|
|
|
| 4) | Entrained particle | Disassemble and clean pump; |
|
|
| replace any damaged parts. |
|
|
|
|
| 5) | Possible |
|
|
| internal damages | Disassemble and clean pump; |
|
|
| replace damaged parts. |
|
|
| Consult factory. |
|
|
|
|
Excessive seal |
|
|
|
assembly leakage | 1) | Worn lip seal | Replace lip seals. |
|
|
|
|
| 2) | Incorrect water flow | Monitor and adjust water flow |
|
|
| to provide correct sealing |
|
|
| temperature. |
|
|
|
|
| 3) | Clogged Rheoseal | Disassemble |
|
| channel | housing and inspect. |
|
|
|
|
Reduced pump |
|
|
|
efficiency | 1) | Worn gear(s) | Replace worn gear. |
|
|
|
|
| 2) | Worn bearings | Replace worn bearings. |
|
|
|
|
| 3) | Process conditions | Consult factory for clearance |
|
| changed | recommendations on new |
|
|
| process conditions. |
|
|
|
|
11