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Original Operating Manual
Contents
Before commencing any work, read this instruction carefully! Failure to comply with
!
these instructions may cause damage and personal injury!
ACF/UCF 5
www.northridgepumps.com
Screw pumps
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Table of Contents
Related Manuals for IMO Circor ACF 5
Summary of Contents for IMO Circor ACF 5
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Page 1: Table Of Contents
Screw pumps ACF/UCF 5 Original Operating Manual Contents Page Introduction Safety Pump identification Installation Start-up Trouble shooting Maintenance and Service List of components Exploded View/Ordering code Service intervals Dismantling and reassembling the pump Dismantling Reassembly Before commencing any work, read this instruction carefully! Failure to comply with these instructions may cause damage and personal injury! www.northridgepumps.com... -
Page 2: Introduction
• Only operate the pump if it is in perfect technical condition and only use it as intended, remaining aware of safety and risks, and adhere to the instructions in this manual. www.imo.se www.northridgepumps.com... - Page 3 • Isolate the motor from its supply voltage and secure it against being switched back on again when carrying out any fitting or maintenance work. • Reinstall the safety equipment on the pump as required by regulations after any work on the pump. www.imo.se www.northridgepumps.com...
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Page 4: Pump Identification
Pump with CCW-rotation, when not standard A327 Pump with Tuning® (3) E = Without valve A328 Pump with Tuning® G = Valve with external return A385 A101 + A327 P = Valve with internal return for total pressure range (4) Valid for UCF www.imo.se www.northridgepumps.com... -
Page 5: Installation
BEFORE COMMENCING ANY WORK, READ THIS INSTRUCTION CAREFULLY! Design limitations and technical data for each pump are found in the Product description. Installation of IMO AB low pressure pumps does not require special skills. However, these instructions presume that the work is carried out by experienced fitters. - Page 6 IMO AB standard couplings shall have a distance between the coupling halves as per table, fig 4. the Fig. 3 Alignment of the IMO AB standard coupling coupling halves shall be secured by lock screws. For other types of couplings, please refer to respective maker’s manual.
- Page 7 (2-3 mm recom mended) has to be installed. The deaeration pipe should be connected to the outlet pipe’s highest point. This must also be installed when the pump is used as an stand-by pump. Fig. 8 Deaeration www.imo.se www.northridgepumps.com...
- Page 8 In such installations the suction pipe should be arranged so it forms a liquid trap together with the pump, keeping the pump half filled with liquid. See fig. 11. Fig. 11 Liquid trap www.imo.se www.northridgepumps.com...
- Page 9 All systems with screw pumps should be equipped with a pressure relief valve installed immediately adjacent to the pump. In the standard versions of IMO AB low pressure Fig. 12 Gauges pumps, this pressure relief valve is an integral part of the pump to protect the pump against excess pressure.
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Page 10: Start-Up
The arrow is placed on different spots depending on the pump series. Fig. 17 Direction of rotation www.imo.se www.northridgepumps.com... - Page 11 This is done by turning the tuning spindle with an Allen key (size 8 mm for ACG/UCG , 12 mm for ACF/UCF and LPQ ) to a position where the noise level comes to www.imo.se www.northridgepumps.com...
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Page 12: Trouble Shooting
The pumped liquid contains and Vibration. ( Page 11). a significant amount of com - -pressible gas, such as free air. (This would usually cause noise). Contact your IMO AB A too small pump has been representa tive. chosen. www.imo.se www.northridgepumps.com... - Page 13 Free air in the liquid or gas For pumps with Tuning: cavitation. Adjust the Tuning. If this does not help or for pumps without Tuning: Contact your IMO representative or IMO service dept. Faulty electrical supply. Check all three phases of the supply.
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Page 14: Maintenance And Service
Washer (537) Plug (537A) Washer Gasket 6000 Valve cartridge (6010) Compl. valve cover (602) (603) O-ring (605) O-ring (608) Valve spindle (609) Washer (610) Ball bearing (612) Regulating nut (614) Valve piston (615) Spring (622) (623) Ball bearing www.imo.se www.northridgepumps.com... -
Page 15: Exploded View/Ordering Code
Introduction A screw pump from IMO is a quality product that is designed for a long problem free operation in tough environ- ments. As all other mechanical products they do however require a certain grade of maintenance and service in order to guarantee a faultless and economic favourable operation. -
Page 16: Service Intervals
Warranty matters IMO AB´s warranty obligations covers new pumps for 1 year after the commissioning of the pump. Parts that NOT are covered by the warranty are normal wear details such as the mechanical shaft seal, the ball bearing or the flexible coupling. -
Page 17: Dismantling And Reassembling The Pump
(615) (430) (432) (424) Sizes 100-125 (612) (609) (610) (605) (603) (602) Sizes 080-090 (601) (6010) 010) 463A 455A (105) (623) (104) 521 521A 520A (622) (103) 6000 537A 1:4 4 (520B) 5200 (106) 1020 556 453 480 www.imo.se www.northridgepumps.com... -
Page 18: Dismantling
▪ Note the axial position of the coupling half ▪ Release the stop screw ▪ Remove the coupling half with a puller www.imo.se www.northridgepumps.com... - Page 19 Teflon piece that fits smoothly. ▪ NOTE: The other end of the Teflon piece should fit on the opposite side of S1 and is used lager on when S1 is pressed into the end cover 520 again. www.imo.se www.northridgepumps.com...
- Page 20 ▪ Reassemble in opposite order. ▪ Loosen the 8 bolts 453 in order to remove the back cover 480. ▪ Reassemble in opposite order. ▪ Change o-ring 437 on the tuning piston 429 and mount it in 4240 in reverse order. www.imo.se www.northridgepumps.com...
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Page 21: Reassembly
NOTE: The measurement of this tool varies be difficult to mount the power rotor. depending on the pump size, a measurement table can be found in the tool description on page 7. The tool can also be purchased from IMO AB. www.imo.se www.northridgepumps.com... - Page 22 • Lock set screws to 8 Nm NOTE: It is very important that the mechanical seal is handled with care and cleanliness is to be considered as crucial. • Complete mechanical shaft seal www.imo.se www.northridgepumps.com...
- Page 23 • Mount the complete end cover 520 carefully on the power rotor 1020. • Remount the shaft coupling with a suitable tool. NOTE: Do NOT mount the coupling half with a hammer as this will destroy the shaft seal. www.imo.se www.northridgepumps.com...
- Page 24 Adress: IMO AB Årstaängsv 27C, 1117 43 Stockholm, Sweden Telephone: +46 8 50 622 800 www.imo.se www.northridgepumps.com...
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