SEW Maintenance Series ReplacingaStator SEW-EURODRIVE—Driving the world
Product Training Stator Replacement 2 After reviewing the following information you will be able to accomplish the following: –––– Remove an existing stator from an SEW motor Install a replacement stator SEW-EURODRIVE—Driving the world Objectives
Safety First 3 1.Never perform any work that you are either unqualified for or feel uncomfortable doing 2.Follow all local safety guidelines 3.Never perform work on equipment that is connected to a power source or energized 4.Always use the proper tooling 5.Make use of all required PPE or Personal Protective Equipment SEW-EURODRIVE – J. Scott7/5/2012 Service and Maintenance – SEW Motor Pinion Replacement
Product Training Stator Replacement 3 What you will need: Replacement Stator 1 Metric Socket-set w/ Wrench 1 Medium Flat Tip Screwdriver 1 External Snapring Pliers 1 Torx-bit Driver 1 Medium Dead-blow Hammer 1 Pair of Cutting Pliers SEW-EURODRIVE—Driving the world Tools and Materials
Product Training Stator Replacement 4 Always follow the proper lockout/tagout procedures. Use the proper safety equipment at all times. SEW-EURODRIVE—Driving the world Safety
Removing ExistingStator SEW-EURODRIVE—Driving the world
Product Training Stator Replacement 6 Disconnect all power sources to the motor. SEW-EURODRIVE—Driving the world Step 1
Product Training Stator Replacement 7 Remove the conduit box lid using the appropriate metric socket. SEW-EURODRIVE—Driving the world Step 2
Product Training Stator Replacement 8 Disconnect the power wires from the motor. SEW-EURODRIVE—Driving the world Step 3
Product Training Stator Replacement 9 Remove the four (4) Torx screws inside the conduit box. SEW-EURODRIVE—Driving the world Step 4
Product Training Stator Replacement 10 Remove the conduit box from the motor. SEW-EURODRIVE—Driving the world Step 5
Product Training Stator Replacement 11 Remove the conduit box gasket from the motor. SEW-EURODRIVE—Driving the world Step 6
Product Training Stator Replacement 12 Using a metric nut-driver, remove the 4 small screws that hold the fan guard in place. SEW-EURODRIVE—Driving the world Step 7
Product Training Stator Replacement 13 Remove the fan guard. SEW-EURODRIVE—Driving the world Step 8
Product Training Stator Replacement 14 Using the external snapring pliers, remove the snapring that secures the fan. SEW-EURODRIVE—Driving the world Step 9
Product Training Stator Replacement 15 With the medium-sized flat-tip screwdriver, gently pry the fan up and down to loosen and remove it. Use caution to avoid damaging the fan! SEW-EURODRIVE—Driving the world Step 10
Product Training Stator Replacement 16 Using the cutting pliers, remove the A-key from the rotor shaft. SEW-EURODRIVE—Driving the world Step 11
Product Training Stator Replacement 17 Remove the rubber v-ring from the rotor shaft. SEW-EURODRIVE—Driving the world Step 12
Product Training Stator Replacement 18 Using the appropriate metric socket, remove the four (4) motor tension rods. SEW-EURODRIVE—Driving the world Step 13
Product Training Stator Replacement 19 Place the medium-sized flat-tip screwdriver between the stator and the motor end bell.Gently pry the stator at several locations to loosen it.Use caution to avoid damaging the stator fins! SEW-EURODRIVE—Driving the world Step 14
Product Training Stator Replacement 20 Remove the wavy washer from the rotor shaft. SEW-EURODRIVE—Driving the world Step 15
Product Training Stator Replacement 21 Tap the inside of the motor end shield to gently remove it from the stator. End shield SEW-EURODRIVE—Driving the world Step 16
Product Training Stator Replacement 22 Clean any dust or contamination from the motor parts. SEW-EURODRIVE—Driving the world Step 17
Installing ReplacementStator SEW-EURODRIVE—Driving the world
Product Training Stator Replacement 24 Slide the replacement stator onto the rotor. same position as the previous stator. Rotate the stator until the conduit box is located at the SEW-EURODRIVE—Driving the world Step 18
Product Training Stator Replacement 25 Line up the tension rod holes.Then, gently tap the stator onto the flange. SEW-EURODRIVE—Driving the world Step 19
Product Training Stator Replacement 26 Slide the wavy washer onto the rotor end. SEW-EURODRIVE—Driving the world Step 20
Product Training Stator Replacement 27 Place the motor end shield onto the rotor while keeping the wavy washer aligned. Rotate the end shield until the tension rod holes are aligned and tap the end shield into place. SEW-EURODRIVE—Driving the world Step 21
Product Training Stator Replacement 28 Using the appropriate metric socket and driver, install the four (4) motor tension rods. SEW-EURODRIVE—Driving the world Step 22
Product Training Stator Replacement 29 Lubricate the rubber v-ring with oil or grease. against the motor end shield. Slide it over the end of the rotor shaft until it seats firmly SEW-EURODRIVE—Driving the world Step 23
Product Training Stator Replacement 30 Install the A-key using the dead blow hammer. SEW-EURODRIVE—Driving the world Step 24
Product Training Stator Replacement 31 Install the fan using gentle taps with the dead blow hammer. SEW-EURODRIVE—Driving the world Step 25
Product Training Stator Replacement 32 Install the snapring with the external snapring pliers. SEW-EURODRIVE—Driving the world Step 26
Product Training Stator Replacement 33 Place the fan guard over the fan, lining up the fan guard holes with the holes in the end shield. SEW-EURODRIVE—Driving the world Step 27
Product Training Stator Replacement 34 Using the appropriate metric socket and driver, install the four (4) fan screws. SEW-EURODRIVE—Driving the world Step 28
Product Training Stator Replacement 35 Place the conduit box gasket onto the motor. SEW-EURODRIVE—Driving the world Step 29
Product Training Stator Replacement 36 Using the four (4) Torx screws and Torx driver, install the conduit box into its previous location to ensure that any drain holes remain in their proper position. SEW-EURODRIVE—Driving the world Step 30
Product Training Stator Replacement 37 Reconnect all of the wires according to the appropriate wiring diagram. SEW-EURODRIVE—Driving the world Step 31
Product Training Stator Replacement 38 Install the conduit box lid using the appropriate metric socket and driver. SEW-EURODRIVE—Driving the world Step 32
Product Training Stator Replacement 39 Reconnect power and confirm the proper operation of the motor and attached equipment. SEW-EURODRIVE—Driving the world Step 33