Submersible Grinder Pump
NSPG 200
NOTE! To the installer: Please make sure you providethis manual to the owner of the pumping equipment or tothe responsible party who maintains the system.
Pump Installation and Service Manual
Page 1: ... Grinder Pump NSPG 200 NOTE To the installer Please make sure you provide this manual to the owner of the pumping equipment or to the responsible party who maintains the system Pump Installation and Service Manual ...
Page 2: ...ad from the pump impeller and cutter blades The motor winding rotor and ball thrust bearing are mounted in a housing sealed and filled with oil to lubricate the bearing and transmit the heat from motor winding to outer shell The ball thrust bearing is held in a movable cap so that the axial cutter and cutter ring clearance can be adjusted from the outside without the use of shims The power cord is...
Page 3: ...rance between the axial cutter 5 and the cutter ring 6 follow this procedure 1 Close gate valve at pump discharge 2 Turn off circuit breaker CAUTION Never work on pump unless power has been turned off 3 Remove pump from sump 4 Referring to Figure 1 loosen jam nuts 41 on set screws 48 located on top of bearing housing 9 5 Loosen set screws 48 6 Tighten hex head capscrews 32 until axial cutter 5 jus...
Page 4: ...ove lower seal 18 from seal plate 10 4 Remove snap ring 17 and pull upper seal 16 from shaft It may be necessary to use packing hooks to remove seal Use a screwdriver to break the upper stationary ceramic seal ring so that it can be removed easily CAUTION Do not use any old seal parts Replace all parts with new pieces Mixing old parts with new parts will cause immediate seal failure 5 When cleanin...
Page 5: ...n applying power be sure the pump is restrained from turning by holding the pump at the motor housing or by clamping it in a holding fixture CAUTION Always keep hands away from the pump cutter area after the circuit breaker is reconnected Pump Troubleshooting Below is a list of troubles and their probable causes No liquid delivered 1 Pump air bound 2 Discharge head too high 3 Pump or piping plugge...
Page 6: ... Ring S 1 30 00150 029 1 O Ring S 1 31 00019 001 1 Screw 4 32 00176 010 1 Capscrew 2 33 00101 020 1 Capscrew 2 35 00101 019 1 Capscrew 9 36 01130 008 1 Impeller Screw 1 37 00517 009 1 Socket Head Screw 3 39 00025 009 1 Stator Screw GE Motor 4 00025 008 1 Stator Screw Emerson Motor 4 40 00030 013 1 Machine Screw 3 41 00114 006 1 Hex Nut 2 Ref Part Part No No Description Qty 42 04580 001 1 Drive Scr...
Page 7: ...7 NSPG 200 Parts List 48 41 32 59 21 42 57 9 27 58 23 33 47 49 24 56 8 14 15 16 35 7 61 30 11 10 35 18 19 3 1 6 40 52 36 13 4 5 37 2 20 17 55 39 44 31 60 22 28 ...
Page 8: ...disposition Any transportation charges involved in such disposition shall be for the Buyer s account The Buyer s exclusive and sole remedy on account or in respect of the furnishing of material that does not conform to this contract or to this written warranty shall be to secure replacement thereof as aforesaid Hydromatic shall not in any event be liable for the cost of any labor expended on any s...
