Related Manuals for Colfax Zenith H Series
Summary of Contents for Colfax Zenith H Series
- Page 1 Zenith Pumps H-Series ® Gear Pumps Installation, Care And Maintenance Zenith High-Temperature Gear Pumps...
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Page 2: Specifications
Thoroughly read and understand this entire manual before installation and operation of pump. Zenith ® Pumps In 1926, Zenith Pumps was approached Manufacturing techniques were devel- by the synthetic fiber industry to design oped to hold tolerances to .00005", and a pump to provide a precise, pulseless, an inter-nal pressure relief mechanism repeatable flow and assure better quality... -
Page 3: Operation
Design Zenith H-Series metering pumps consist pumps is a common occurrence and of two gears rotating in mesh within a should be expected. closely fitted housing that is comprised of H-Series pumps are precision three plates. The center gear plate fits instruments requiring skilled and careful closely around the outside diameter of the maintenance. -
Page 4: Installation
Installation Pumps should be carefully unpacked to 5) In pumps with a through shaft and make sure that the shipment is complete. compression packing seal, the pump-to- If any items are missing or damaged, the driver axis may shift unevenly due to freight carrier and Zenith should be notified pump heating expansion. -
Page 5: Cleaning, Inspection
Cleaning, REMEMBER: Zenith metering pumps are CAUTION: Avoid exposing the pump to made for exacting duty. In order to devel- thermal shock when using this method of Inspection op the high pressure demanded, the cleaning. clearance between the metering gears After gradually cooling to room tem- and Repair and their housing must be as small as... - Page 6 HPB Series Sleeve Bearing (press fit) Rear Side Plate Assembly Center Plate Round Key (Square End) Drive Shaft 10 Hollow Dowel Sleeve Bearing (press fit in front Zenith Single (press fit) side plate) Stream Pump 6 Driving Metering Gear Type HPB-4647-1.168 7 Driven Metering Gear 5 Arbor (press fit in front side plate) 1 Front Side Plate Assembly...
- Page 7 HLB Series Binder Screw 4.00'' Rear Plate 6.06'' Driving Gear Round Key Zenith Single Stream Pump 10 Hollow Dowel Outer Key Type HLB-5592 2 Center Plate Sleeve Bearing 7 Driven Gear 5 Arbor Spacer Ring 4 Drive Shaft Seal Packings 1 Front Plate Seal Plate 27 Screw, Seal Packing...
- Page 8 H-Series If pumps are to be disassembled on a 7) Inspect all parts for nicks, burrs, score regular basis, we recommend that you marks and other signs of wear. Disassembly establish a pump room with all the neces- The plates and faces of the gears may be sary tools and equipment for disassembly hand blocked on 400/600 grit paper and and cleaning with a separate “clean”...
- Page 9 Figure 1 NOTE: During and between each recommended limit. It is especially impor- tant to rotate the gears frequently during reassembly step, manually turn the meter- H-Series ing gears to ensure that they are free turn- this operation. See Table 2 on page 10 for ing.
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Page 10: Screw Torque
Screw Torque Screw Torque Values* (Standard Alloy Steel) Screw Size &Thread Torque (Lubricated Threads) (UNC Alloy Steel) lbs.-in. lbs.-ft. #10-24 (w/ Carbon Seal Gasket) #10-24 (w/o Carbon Seal Gasket) #12-24 1/4-20 12.5 5/16-18 3/8-16 1/2-13 1,300 Table 2 * In critical applications where control of bolt preload is important, the torque-tension relation should be determined by experimenting on the actual parts involved (including thread lubricants). -
Page 11: Troubleshooting
Troubleshooting Trouble Probable Cause Remedy Pump will not turn 1) Low pump temperature Check thermocouple and control loop for proper setting/operation. Allow sufficient heat-up time. 2) Drive malfunction Verify drive is powered. Check to assure all alarm circuits are clear. Check drive motor current and speed settings. - Page 12 Zenith Pumps and its subsidiaries at any time without notice. ISO 9001: 2000 Registered Zenith Pumps ® 1710 Airport Road Monroe, NC 28110 Phone: 704-289-6511 • Fax: 704-289-9273 zenithpumps@colfaxcorp.com • www.zenithpumps.com A Colfax Buisiness Unit © Copyright 1992 Zenith Pumps H C&M 10/04...
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