Service instructions. Contents AMD Hz 3~

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Service instructions AMD.07.18.1410.3 50 Hz 3~ Contents 1. Type identification... 2 1.1 Nameplate...2 1.2 Type key...2 2. Torques... 3 3. Service tools...4 3.1 Special tools...4 3.2 Standard tools.

1 Service instructions AMD Hz 3~ Contents 1. Type identification Nameplate Type key Torques Service tools Special tools Standard tools Torque tools Dismantling and assembly Dismantling the mixer Assembling the mixer Service chart Oil in shaft seal housing Fault finding Fault finding chart Drawing GB 1 / 9

2 1. Type identification 1.1 Nameplate 7 1 Type:AMD T MAX: 40 C 2 Prod. No: :20m 9 3 U: 3x400 V: 50Hz Cos :0,78 10 I MAX:1,9A n:1410min-1 10,50kg 4 11 P1/P2:1,0 /0,75kW Class: F 5 12 Vers: 1 : P 3 IP P.c: Made in Denmark TM Pos. Description Pos. Description 1 Type designation 9 Maximum installation depth 2 Product number 10 Power factor 3 Supply voltage and frequency 11 Net weight 4 Maximum current 12 Insulation class 5 Motor power input/output 13 Enclosure class 6 Version number 14 Production code 7 Rated speed 15 Place of production 8 Maximum liquid temperature 1.2 Type key Type range Version: M = Mixer Drive: D = Direct Shaft power output, P 2 [kw] x 10 Propeller diameter [cm] Propeller speed [min -1 ] Number of phases Example A M D GB 2 / 9

3 2. Torques Pos. Designation Quantity Dimensions Torque [Nm] 1 Hub screw 1 M12 x 1 (left-hand thread) 10 2 Spring washer 1 M12-3 Lock washer Propeller Mounting clamp Mounting bracket 1 2" thread - 7 Nut 1 M8-8 Spring washer 1 M8-9 Spring washer 2 M6-10 Nut 2 M6-11 Screw 2 M6 x Screw 1 M8 x Screw 2 M5 x O-ring 2 5 x 1-15 Seal cover O-ring x O-ring 1 21 x 2-18 O-ring x 3-19 O-ring 1 12 x Rotating shaft seal part (SiC) Stationary shaft seal part (SiC) Spring for shaft seal Stationary seat Motor Cable with plug Position numbers refer to 7. Drawing GB 3 / 9

Description Part number C Bits kit 13 3 mm hexagon key SV2010 D Screwdriver 105 Straight slot - E Socket 1 M43-3.

4 3. Service tools A B C D E F G 3.1 Special tools Pos. Designation For pos. Description Part number A Soft jaws 24 SV0412 B Puller Standard tools Pos. Designation For pos. Description Part number C Bits kit 13 3 mm hexagon key SV2010 D Screwdriver 105 Straight slot - E Socket 1 M Torque tools Pos. Designation For pos. Description Part number 1-6 Nm SV0438 F Torque wrench 1, Nm SV0292 G Ratchet insert tool F 9 x 12, ½" x ½" SV GB 4 / 9

5 4. Dismantling and assembly The motor must only be replaced by Grundfos or an authorized service workshop. This also applies to the cable entry. Position numbers Position numbers of parts (digits) refer to exploded views, sectional drawings and parts lists; position numbers of tools (letters) refer to 3. Service tools. Before dismantling Disconnect the electricity supply to the mixer. Clean the mixer of injurious substances. Remove the electric cable in accordance with local regulations. Before assembly O-rings should always be replaced when the mixer is overhauled. Clean and check all parts. Order the necessary service kits. Replace defective parts by new parts. During assembly Lubricate and tighten screws and nuts to the torque stated, see 2. Torques GB 5 / 9

6 4.1 Dismantling the mixer Removing the propeller 1. Fit the mixer with the propeller upwards in a vice with soft jaws. 2. Remove the hub screw pos. 1 (left-hand thread). 3. Remove the spring washer pos Pull the propeller pos. 4 including the lock washer pos. 3 off the shaft Removing the seal cover and draining of oil 1. Remove the propeller, see Removing the propeller. 2. Slacken the screws pos Remove the seal cover pos. 15 including the screws pos. 13 and the O-rings pos. 14 and Remove the mixer from the vice and pour the oil into a transparent container. Let the oil stand so that water and oil separate. If the oil contains more than 30% water, the shaft seal must be replaced Removing the shaft seal 1. Remove the seal cover, see Removing the seal cover and draining of oil. 2. Remove the rotation shaft seal part pos. 20 using the puller pos. B. 3. Remove the stationary shaft seal part pos. 21 and the spring pos Slacken the stationary seat pos. 23 including the O-rings pos. 17 and 18 using a small screwdriver. 5. Remove the seal ring. 6. Remove the O-ring pos Assembling the mixer Fitting the shaft seal 1. Fit the mixer with the shaft end upwards in a vice with soft jaws. 2. All O-rings should be lubricated with a little oil before being fitted. 3. Fit the O-ring pos. 19 on the shaft. 4. Fit the O-rings pos. 17 and 18 on the stationary seat pos Place the seal ring pos. 23 with the thick O-ring downwards so that the tab points to one of the screw holes. 6. Press the seal ring home in the motor. 7. Fit the spring pos Fit the stationary shaft seal part pos. 21 with the seal face upwards and the tab aligned with the tab of the seal ring. Take care of the seal face; it must not be exposed to blows or touched. 9. Fit the rotating shaft seal part pos. 20 loosely on the shaft with the seal face downwards. Take care of the seal face; it must not be exposed to blows or touched. 10. Fit the propeller pos. 4 and the lock washer on the shaft and screw the hub screw (left-hand thread) on the shaft, but do not tighten. 11. Check that the tab of the stationary shaft seal part is aligned with the tab of the seal ring. 12. Tighten the hub screw so that the rotating shaft seal part pos. 23 touches the recess of the shaft. 13. Check manually that the shaft can rotate freely. 14. Remove the hub screw, propeller and lock washer Filling of oil and fitting the seal cover 1. Fill oil through one of the threaded holes for the seal cover. 2. Fit the two thin O-rings pos. 13 on the screws pos. 13, and fit the screws in the seal cover pos Fit the O-rings pos Fit the seal cover pos. 15 and tighten the screws pos. 13 with 2 Nm Fitting the propeller 1. Fit the propeller pos. 4, lock washer pos. 3 and the spring washer pos Fit the hub screw pos. 1 and tighten it with 10 Nm. 3. Check that the propeller rotates freely GB 6 / 9

7 5. Service chart Component Service instructions Lubrication Inspection Motor Supply cable Shaft seal housing Propeller Pull and safety wire Screws 5.1 Oil in shaft seal housing Oil quality Keep the motor housing clean (otherwise cooling is affected). The motor housing cannot be dismantled. Regular oiling or greasing increases the life of the wire. Check the fixing screws every time the pit/tank is empty. Ambient temperature 0 to +40 C Type SHELL Ondina 917 Quantity litre Change the oil every operating hours or minimum every two years. The motor is filled with dielectric oil. No oil level check and oil change are required. The supply cable must be checked twice a year for surface damage, strain, kinks, etc. If damaged, the cable must be replaced by Grundfos. Check the propeller blades regularly for wear and tear. Remove any material wound round the blades, such as ropes, threads, etc. which may cause uneven running and oscillation of the installation. In case of strong turbulence, cleaning is absolutely necessary. If the propeller is damaged, it should be replaced. Check the lifting wire regularly and always before using the winch. Replace the wire, if required GB 7 / 9

8 6. Fault finding 6.1 Fault finding chart Fault Cause Remedy 1. Mixer does not start. 2. Mixer starts but stops immediately. a) No electricity supply or supply failure. Check the electrical installation. Call in an electrician. b) Supply cable is faulty. Call in an electrician. c) Control system is faulty. Call in an electrician. Clean the propeller blades and d) Propeller not free to rotate. check manually that the propeller can rotate freely. e) Stator windings are faulty. Contact GRUNDFOS. f) Motor cut out because of overheating. Wait until the motor has cooled and attempt to restart the mixer. g) Different phase voltages. Call in an electrician. Check the motor starter. h) Overload relay is set too low or is faulty. Set the starter to the rated current. i) Humidity in motor. Contact GRUNDFOS. a) Stator windings are faulty. Contact GRUNDFOS. b) Different phase voltages. Call in an electrician. Check the motor starter. c) Overload relay is set too low or is faulty. Set the starter to the rated current. d) Humidity in motor. Contact GRUNDFOS. 3. No or inadequate a) Propeller rotates in the wrong direction. circulation produced even if the motor is running. b) Mixer runs on two phases. 4. Mixer runs unevenly and is noisy. 5. High current and power consumption. Interchange two phases of the mains supply. Replace faulty fuses. Call in an electrician. Check the electrical connections. c) Internal parts are worn. Contact GRUNDFOS. d) Propeller blades are dirty or damaged. Clean the blades and inspect for any wear. a) Internal parts are worn. Contact GRUNDFOS. b) Propeller blades are dirty or damaged. Clean the blades and inspect for any wear. c) Oscillations caused by the installation (resonance). Check installation design. a) Wrong voltage supply or supply failure. Check the electrical installation. Call in an electrician. b) Supply cable is faulty. Call in an electrician. c) Control system is faulty. Call in an electrician. Clean the propeller blades and d) Propeller not free to rotate. check manually that the propeller can rotate freely. e) Stator windings are faulty. Contact GRUNDFOS. Replace faulty fuses. f) Mixer runs on two phases. Call in an electrician. Check the electrical connections. g) Internal parts are worn. Contact GRUNDFOS GB 8 / 9

9 7. Drawing TM GB 9 / 9

Service instructions. MS6 3.7 kw - 30 kw. 50/60 Hz 3~

Service instructions. MS6 3.7 kw - 30 kw. 50/60 Hz 3~ Service instructions MS6 3.7 kw - 30 kw 50/60 Hz 3~ 1. Symbols used in this document... 2 2. Identification... 2 2.1 Nameplate... 2 2.2 Frequency converter operation... 2 2.3 Product number key... 3 2.4