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 | |
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Pump will not turn | 1) | Low pump | Check thermocouple and control |
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| temperature | loop for proper setting/operation. |
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| Allow sufficient |
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| 2) | Drive malfunction | Verify drive is powered. Check to |
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| assure all alarm circuits are clear. |
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| Check drive motor current and |
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| speed settings. Check all drive |
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| couplings. |
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| 3) | Process |
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| conditions changed | Check process conditions for |
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| proper melt temperature, pres- |
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| sures, viscosities and materials. |
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| 4) | Entrained particle | Disassemble and clean pump; |
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| replace any damaged parts. |
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| 5) | Possible |
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| internal damages | Disassemble and clean pump; |
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| replace damaged parts. |
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| Consult factory. |
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Excessive seal |
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assembly leakage | 1) | Worn lip seal | Replace lip seals. |
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| 2) | Incorrect water flow | Monitor and adjust water flow |
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| to provide correct sealing |
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| temperature. |
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| 3) | Clogged Rheoseal | Disassemble |
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| channel | housing and inspect. |
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Reduced pump |
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efficiency | 1) | Worn gear(s) | Replace worn gear. |
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| 2) | Worn bearings | Replace worn bearings. |
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| 3) | Process conditions | Consult factory for clearance |
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| changed | recommendations on new |
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| process conditions. |
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