Compatible — ASSEMBLY INSTRUCTIONS

For these models: ME-SE1 or ME-SESOO, Magna Mite.

Procedure

1. To assemble the generator, follow the disassembly instructions in a reverse sequence.
2. Assemble all Belleville washers per figure 12.
3. Torque all capscrews per figure 13. BELLEVILLE WASHERS, MUST BE MOUNTED IN THIS DIRECTION tame fl 4 CAPSCREW TORQUE VALUES Fig. 12 SHIPPING INSTRUCTIONS When installed, single bearing generator rotors are supported on the drive end by the drive discs bolted to the engine flywheel. When the generator is removed, the rotor must be supported by an appro- priate fixture to prevent main rotor, main stator or exciter damage. The fixture must prevent axial move- ment of the rotor assembly during any shipping Metric Grade 5.8 6.8 8.8 Approx. SAE Grade 2 3 5 Capscrew Head C) Markings Capscrew Body Size (mm) x Torque Torque Torque Pitch (mm/thread) | ft-lb kg-m ft-lb kg-m ft-lb kg-m M4 x.7 4A, 16 a4 24 2 29 MS x .8 2.3 32 3.5 A8 4 57 M6 x 1.0 3.9 54 5.8 -80 7 1.0 M7 x 1.0 6.5 -90 9.4 1.3 W 1.6 MB x 1.25 10 1.3 14 2 18 2.5 Mi0 x 1.5 20 20 29 4 32 5 M12 x 1.75 34 47 50 « 58 8 M14 x 2.0 54 7 79 1 94 13 M16 x 2.0 80 1 122 ald 144 20 M18 x 2.5 114 16 170 23 190 26 NOTE: 1 inch = 25.4mm 1 ft-lb = .138 kg-m Fig. 13 17 TROUBLE SHOOTING WARNING RESIDUAL VOLTAGE IS PRESENT AT THE GENERATOR LEADS AND AT THE REGU- LATOR PANEL CONNECTIONS. CAUTION MUST BE OBSERVED OR SERIOUS PER- SONAL INJURY OR DEATH CAN RESULT. CONSULT QUALIFIED PERSONNEL WITH ANY QUESTIONS. Note: Always include the Model Number and Serial Number of your generator when corresponding with Marathon Electric Symptom Possible Cause Remedy No Voltage Open or short circuit in exciter stator. Check for broken or open lead wires. If fault is in winding coils, rewind or return to factory for repair Loss of residual magnetism Flash field with de source. See page 12 for field flashing procedure Regulator fuse(s) blown. Replace fuse(s). Correct cause of blown tuse(s) Open or short circuit in main stator. Check winding for continuity. Rewind or return to factory if detective Defective voltage regulator. Trouble shoot regulator. Replace if defective Open or shorted rectifier asy. Check assembly according to page 16. Replace any rectifiers which are defective. Open or short circuit in main rotor Check for broken or open lead wires. If fault is in winding coils return rotor to factory for repair Regulator overexcitation shutdown. Reset by stopping set or removing regulator power for 2 seconds. Correct cause of overexcitation condition Open or short circuit in exciter rotor. Check for broken or open lead wires. If fault is in winding, repair bs or replace rotor Fluctuating Defective voltage regulator. Replace if defective. Voltage Engine speed fluctuating. Check engine governor. improper voltage regulator stability Adjust voltage regulator stability control. Page 9 adjustment Open voltage adjust rheostat Check for continuity. Replace if defective Generator overloaded Reduce load to rated value Operating at 50 Hz with regulator Hz Connect regulator Hz jumper for 50 Hz jumper open, (ME-SE1) Loose internal or load connections. Tighten connections. High Voltage High engine speed Reduce speed of engine to rated. Defective voltage regulator Replace if detective. Misadjustment of rheostat. Adjust rheostat. Low voltage Defective voltage regulator. Replace if defective Misadjustment of rheostat. Adjust rheostat Voltage drop in line. Increase size of wire High resistance connections to load Tighten connections. Connections will be warm or hot Open voltage adjust rheostat Check for continuity. Replace if defective Operating at 50 Hz with regulator Hz Connect regulator Hz jumper for 50 Hz jumper open. (ME-SE1) Low power factor load Reduce inductive (motor) load to within nameplate amps Generator overloaded Reduce load to rated value Low engine speed Check engine governor. Vibration Defective or dry bearings. Replace defective bearings. Misalignment of generator to engine. Align generator to engine. MARATIGN® 18 PARTS LIST GENERATOR EXPLODED VIEW wh "Al DOUBLE BEARING GENERATOR SINGLE BEARING GENERATOR 19 PARTS LIST GENERATOR PARTS LIST Item Description 1 Disc Mounting Screw and Washer 2 Drive Disc 3 Disc Spacers (when used) 4 Drive Hub 5 Screen 6 SAE Adaptor 7 Ventilating Fan 8 Drive Hub Key 9 Shaft and Main Rotor Core with Winding 10 Main Stator and Frame Assembly with Winding 11 Rear Bracket/Adaptor Mounting Screw and Washer 12 Front Bracket Mounting Screw and Washer 13 Balance Hub and Insulator Assembly 14 Rectifier Assembly-Reverse Polarity 15 Surge Protector 16 Exciter Rotor Assembly with Winding 17 Bearing Retainer 18 Front End Bracket 19 Conduit Box Back 20 Bearing Cap Mounting Screw and Washer 21 Conduit Box Top 22 Conduit Box Cover Mounting Screw and Washer Assembly 23 Conduit Box Cover 24 Conduit Box Panel 25 Regulator Panel 26 Conduit Box Side 27 Voltage Regulator 28 Voltage Adjust Rheostat 29 Fuse and Fuseholder 30 Exciter Stator Assembly with Winding 31 Bearing O Ring 32 Ball Bearing (Exciter End) 33 Rectifier Assembly-Standard Polarity 34 Screen Mounting Bolt and Nut and Washer Assembly 35 Rear Bearing Lock Mounting Screw and Washer 36 Rear Bracket 37 Rear Bearing Snap Ring 38 Ball Bearing (Shaft Extension End) 39 Rear Bearing Lock 40 Shaft Extension Key GENERATOR PARTS LIST RECOMMENDED SPARE PARTS A1 Complete Single Bearing Rotor Assembly Includes Items: 4, 7, 8, 9, 13, 14, 15, 16, 17, 32, 33 A2 Complete Double Bearing Rotor Assembly Includes Items: 7, 9, 13, 14, 15, 16, 17, 32, 33, 37, 38, 39 A3 Complete Bracket and Exciter Stator Assembly Includes Items: 18, 30, 31 A4 Complete Conduit Box Assembly Includes Items: 19, 21, 22, 23, 24, 26 A5 Complete Regulator Panel Assembly Includes Items: 25, 27, 28, 29 RECOMMENDED SPARE PARTS. Item Description Qty. | 27 | Voltage Regulator 32, 38] Ball Bearing 15 | Surge Protector 33 | Rectifier Assembly - Std. 14 | Rectifier Assembly - Rev 29A | Fuse 29 | Fuseholder 28 | Voltage Adjust Rheostat we CY ee ee Always include the generator model num- ber and serial number when corresponding with Marathon Electric. Parts may be ordered direct from: Marathon Electric Mfg. Corp. P.O. Box 1407 Wausau, WI 54401 Phone: (715) 675-3311 Sales and Service Assistance California ANAHEIM 625 South Euclid Suite 15 Anaheim, CA 92802 Phone: (714) 956-7111 Florida HIALEAH Alvan C. Chaney & Assoc. 1670 W. 39th Place Suite 1309A Hialeah, FL 33012 Phone: (305) 558-2933 Georgia SNELLVILLE 2442 Meadowglen Trail Snellville, GA 30278 Phone: (404) 979-6502 Illinois CHICAGO 655 Central Ave., Unit E Wood Dale, IL 60191 Phone: (312) 350-1800 Ohio CINCINNATI Indiana 1313 E. Kemper Rd., Suite 104 INDIANAPOLIS Cincinnati, OH 45246 6520 E. 82nd Street Indianapolis, IN 46250 Phone: (317) 842-4652 Louisiana NEW ORLEANS

Source: manual:SB323.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.