Table of Contents
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Table of Contents
Troubleshooting
Summary of Contents for Carver GVC Series
- Page 1 (GVC) I-460 Rev. 02 (GVT) I-470 Rev. 02...
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Page 2: Service Record Page
SERVICE RECORD PAGE Service No. ________________ Size and Type ______________ Make ________________________ Cust. Order No. ________________________ Date Installed __________________________________ Installation Date Location Application PUMP RATING Capacity (GPM) __________________________ Total Head (ft) _______________________________ Suction Pressure _________________________ Speed (RPM) ________________________________ Liquid __________________________________ Temperature ________________________________ Specific Gravity __________________________ Viscosity ____________________________________ Impeller Diameter (inches) ______________________________________________________________ PUMP MATERIALS... -
Page 3: Notes On Inspection And Repairs
NOTES ON INSPECTION AND REPAIRS INSPECTION DATE REPAIR TIME REPAIRS COST REMARKS... -
Page 4: Table Of Contents
TABLE OF CONTENTS LOCATION/DESCRIPTION PAGE LOCATION/DESCRIPTION PAGE • SERVICE RECORD PAGE ....FRONT C. Adjusting Impeller Clearance • NOTES ON INSPECTION AND on Pump Equipped with REPAIRS...........FRONT Semi-Open Impeller....16 GENERAL INFORMATION ..1 D. Replacement of Optional Wear Ring on Pump Equipped Preface........1 with Enclosed Impeller.... -
Page 5: General Information
• Quantity of parts needed DRIVER Carver may ship an interchangeable part that is not Prior to working on pump or driver, identical in appearance or symbol. This is done only if ensure all switches and circuit breakers the part has been improved. Examine the parts... -
Page 6: Inspection And Storage
(for example, a unit used for seasonal company. File your “damaged and/or lost in operation), contact a representative from shipment” claim with the carrier. Carver Pump Company. If this is the case, Carver will provide specific instructions for NOTE the equipment during the extended period of storage. -
Page 7: Ordering Codes
The following Ordering Code defines the new Ordering Code enables Carver Pump Company GV Series pump and pump/motor and top plate to accept orders quickly, assuring timely and arrangements. When quoting or ordering a GV correct manufacture of the desired pump. -
Page 8: Installation
When pump is supplied with coupling, motor, and Never run pump dry. Dry running may result baseplate, the complete set is assembled at Carver in pump seizure. Pump Company. After ascertaining that the unit has If excessive vibration or noise occurs during... -
Page 9: Maintenance
1000 hours of front matter of this manual. operation. Bearings are lubricated at Carver Pump Company with Amoco Rykon Premium Grease No. Before disassembly/assembly, review Table A,... -
Page 10: Troubleshooting
CAUTION NOTE Carver recommends replacing bearings if Do not lubricate bearings with a power removed from the shaft. If it is necessary to grease gun. reuse bearings that are in good condition, use proper bearing replacement procedures Using a hand-operated grease gun on outlined in this section. -
Page 11: Troubleshooting
Failure to deliver fluid. 1. Discharge valve closed. 1. Check discharge valve. 2. Discharge head above 2. Consult with nearest Carver shutoff. Pump Company representative or factory. 3. Impeller or suction pipe 3. Inspect and clean impeller clogged. -
Page 12: Semi-Open Impeller
Table 1. Troubleshooting (cont.) SYMPTOM PROBABLE CAUSE REMEDY Reduced capacity and/or 8. Speed too low. 8. Consult wit nearest Carver pressure (cont). Pump Company representative or factory. 9. Semi-open impeller running 9. Check semi-open impeller clearance too large. clearance according to section VIII, paragraph D. -
Page 13: Service And Repair
GVC, 1520 FRAME (Cantilevered) VIII. SERVICE AND REPAIR. (Refer to Figure 1 and Table 6) A. DISASSEMBLY AND ASSEMBLY. Read DISASSEMBLY this entire section and study figures one through Disassemble the pumping unit using the following seven of this manual. procedure: Stop pump in accordance with section V, Remove coupling guard (131). - Page 14 (19) and secure with bolts (607). NOTE 18. Refer to section IV for alignment information. 19. Reconnect coupling. Carver recommends that grease seals (47), o-ring (89), and locking devices with a nylock NOTE feature be replaced with new if disturbed Rotate shaft by hand to make sure pump from position.
- Page 15 Do not use old bolt as impeller damage procedures: could result. NOTE WARNING Carver recommends that grease seals (47), o-ring (89), and locking devices with a nylock To lift rotating element, a hoist or suitable feature be replaced with new if disturbed lifting device must be used.
- Page 16 NOTE WARNING To lift motor, a hoist or suitable lifting device Carver recommends that grease seals (47), must be used. o-ring (89), and locking devices with a nylock feature be replaced with new if disturbed Attach hoist to motor. Remove capscrews from position.
- Page 17 CAUTION WARNING To lift bearing/column assembly, a hoist or Use removable thread locker when installing suitable lifting device must be used. impeller bolt. Screw lifting eye into the tapped hole located 11. Install impeller key (32) and impeller (2) and at coupling end of pump shaft or place a secure with washer (28) and bolt (26).
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Page 18: Parts Inspection
NOTE impeller bolt. 13. Install impeller key (32) in shaft (6). Install Carver recommends that grease seals (47), impeller (2) and impeller washer (28). o-ring (89), and locking devices with a nylock Secure to end of shaft (6) with new bolt (26). -
Page 19: Throttle Bushing Dimensions
appropriate protection for bearings until time Inspect and replace any defective grease of usage. fittings. Inspect for bent shaft (6) and replace shaft On an enclosed impeller pump, check the (6), if necessary. Shaft threads should be in clearance as follows: good condition. -
Page 20: Adjusting Impeller Clearance
C. ADJUSTING IMPELLER CLEARANCE ON To adjust impeller clearance on a pump equipped with an enclosed impeller, 1520 frame, use the following PUMP EQUIPPED WITH SEMI-OPEN information: IMPELLER. To adjust impeller clearance on a pump equipped with a semi-open impeller, 1520 If the impeller bumps casing (1), adjust bearing cap frame, use the following procedure: (37) upward or downward until the rotating element... -
Page 21: Parts List And Figures
Place impeller (2) on an arbor and mount Table 5. Recommended Spare Parts between centers in a lathe or a grinder. Indicate back of impeller (2) hub to within Item No. Qty. Description 0.002 T.I.R. maximum to be sure arbor and impeller (2) are running square. -
Page 22: Pump Parts List For Gvc 1520 And Gvc 1530/1540
Table 6. Pump Parts List for GVC 1520 and GVC 1530/1540 frame Item No. Part Name Item No. Part Name Casing Inner column Impeller Coupling guard Shaft Snap ring Wear ring (if equipped) Plug Suction cover Plug Shaft sleeve (if equipped) Bearing spring Upper (radial) bearing Bolt... -
Page 23: Gvc (1520 Frame) Sectional Drawing
Figure 1. GVC (1520 Frame) Sectional Drawing... -
Page 24: Gvc (1530 Frame) Sectional Drawing
Optional Sleeve Optional Sleeve Figure 2. GVC (1530 Frame) Sectional Drawing... -
Page 25: Gvc (1540 Frame) Sectional Drawing
Figure 3. GVC (1540 Frame) Sectional Drawing... -
Page 26: Gvt (1520 Frame) Sectional Drawing
Figure 4. GVT (1520 Frame) Sectional Drawing... -
Page 27: Gvt (1530 Frame) Sectional Drawing
Figure 5. GVT (1530 Frame) Sectional Drawing... -
Page 28: Gvt (1540 Frame) Sectional Drawing
Figure 6. GVT (1540 Frame) Sectional Drawing... -
Page 29: Optional Wear Ring
Figure 7. Optional Wear Ring... - Page 30 May 3, 2005...