Model 600HD 16 GPM at 60 PSI
6000cc dirt capacity
Installation and
Service Instructions
Oil Supply to Centrifuge
Oil supply should, in general, be taken from the highest pressure, hottest source available on the dirty side of the full-flow oil filter. A 3/4" pipe or #12 hose supply line should be used with a full-opening ball valve installed at the centrifuge oil inlet so that the unit can be isolated for service without shutting down the engine. Preferred pressure is 60 to 80 psig but the Spinner II centrifuge will operate efficiently at 35 to 90 psig. Below 35 psig, an internal idle cut-out valve will close to prevent low oil pressure during low-speed operation.
Clean Oil Return to Sump
Level Control Base (LCB) – Preferred– The air-operated control in Part No. 71602 Level Control Base (LCB) permits the Spinner II centrifuge to be installed on the frame rail, base plate or deck in any convenient location near the engine, above or below the sump oil level. First, mount the Spinner II unit with Part No. 70916 seal to the LCB using the four cap screws and washers supplied and install the Part No. 71050 air regulator. Then securely mount the complete assembly using four 1/2" bolts through the holes in the LCB base.

The clean oil drain line to the sump should be 1-1/2" minimum diameter, unrestricted hose or pipe to a 1-1/2" connection located above oil level if possible – alternate oil fill openings or drilled-and-tapped holes in crankcase doors are possibilities. A below-oil-level return drain requires that a 1-1/2" swing check valve be located at the LCB oil discharge to prevent back-flow when the centrifuge is being serviced. Only low-pressure-drop swing check valves are permitted in the drain line – shut-off valves must never be used.

Control Air Supply. The control in the LCB maintains the proper oil level for maximum centrifuge speed and efficiency, Compressed air to operate it can be obtained from any 25 to 300 psig source and 0.15 SCFM air consumption is very low. The Part No. 71050 regulator should have a shut-off valve on the air inlet side and a 1/4" air line connected to the valve using liquid sealant on threaded connections. In the absence of compressed air, it may be possible to use bleed air from the engine turbocharger or air from a positive displacement scavenging blower. Details are contained in Spinner II Technical Bulletin 98.004.
Using Gravity Drain – Engine Mounted Only –
For a gravity drain without the LCB, the Spinner II centrifuge must be close-coupled to the sump with an unrestricted 4" I.D. drain which must return above the normal sump oil level. The drain line must be sloped downward from the centrifuge outlet and be free of sharp bends or traps. A crankcase door can be modified to provide a suitable drain opening and mounting point. Be sure the sump side of the drain opening is clear and that the drain oil does not impinge on moving parts of the engine.
Mechanical Considerations
Spinner II centrifuges are high speed devices and should be securely mounted to prevent excessive vibration. Operation up to 15 degrees from vertical is permitted.
MODEL 600HD SERVICE INSTRUCTIONS
1. Shut off control air. Shut off oil supply or stop engine and allow centrifuge turbine assembly to come to a complete stop. CAUTION: Open safety drain cock on side of the Level Control Base (if equipped) and be certain that the unit is not pressurized. If cock is under pressure, locate the source and remove before proceeding. Check especially for unauthorized shut-off valves in the oil drain line to the sump and remove if found.

2. Remove cover clamp, unscrew cover nut and remove cover assembly.

3. Partially withdraw centrifuge turbine assembly from the base assembly and allow oil to drain from nozzles before removing completely. Carefully separate centrifuge bowl from turbine by unscrewing jacking nut. (An optional tool, Part No. 70952, is available to facilitate the disassembly process.) Remove stand tube.

4. Carefully remove the dirt cake from the centrifuge bowl using a wooden spatula or other non-damaging tool. Wipe out bowl with solvent and wash stand tube and other parts.

5. Clean and examine top and bottom bearings for excessive wear. Replace bearing tube assembly Part No. 70197, if diameters exceed 0.814" (20.68 mm) top or 1.315" (33.39 mm) bottom. Check turbine nozzles to ensure free passage of oil. Inspect centrifuge turbine seal and replace if damaged. The seal is Viton ® and can be reused several times.

6. Seat stand tube in turbine and reassemble centrifuge making sure that the large and small dowel pins in turbine align with matching holes in bowl as jacking nut is tightened. Continue tightening until bowl is seated snugly on turbine. Do not exceed. 74lb-ft torque on the jacking nut Part No. 70545.

7. Examine spindle journals for damage or excessive wear. Replace base assembly (complete with spindle) if diameter is less than 0.810" (20.57 mm) top or 1.309" (33.26 mm) bottom. The spindle is assembled to base and aligned at the factory, and cannot be properly serviced in the field.

8. Remove, clean and inspect the idle cut out valve assembly and mating bore in housing. The piston should move freely in the bore. Correct any problems and reinstall with new Part No. 71523 seal.

9. If the Level Control Base is used, check the control mechanism by using a thin wire with a hook formed on one end to engage the float arm on the bracket side. Raise the float. Air should flow into the control mechanism. Air flow should stop when the float is lowered. If the air control is defective, it must be repaired. If air control is defective it must be repaired using Part No. 71603 (air valve cartridge kit) or Part No. 71609 (float assembly kit). Follow the instructions in the kits. Caution: The valves supplied are special, low operating force-type with Viton ® seals to withstand hot oil. Do not substitute tire valve cores.

10. Install the centrifuge turbine assembly on spindle, being careful of the bushings. Be sure it rotates freely.

11. Clean and inspect cover, paying special attention to the cover nut assembly. The seal should be replaced if it shows signs of leaking. Note: To disassemble, remove the roll pin and the collar from the top, and withdraw the nut from the bottom.

12. Examine the base-to-cover seal and replace if damaged. The seal is
Viton ® and can be reused several times.

13. Replace the cover assembly and tighten the cover nut securely by hand pressure only. Make sure that the cover seats on the base assembly evenly all around so that the cover seal is properly compressed. Replace the cover-to-base clamp and tighten the clamp nut securely by hand. Check all centrifuge and Level Control Base mounting bolts for proper tightness.

14. Close safety drain cock on the Level Control Base. Open air supply and oil supply to centrifuge. With engine running, check all connections and joints for leaks. Repeat assembly if vibration is excessive.
Note: All centrifuge turbines are correctly balanced before leaving the factory. An out-of-balance condition can occur as a result of uneven build-up of dirt in the bowl or as a result of excessive bearing or spindle journal wear. Depending on conditions, wear will eventually take place on the spindle and bearings, requiring replacement of the appropriate assemblies.
Viton ® is a trademark of Dupont