Wacker Neuson G 2.1A Repair Manual

Wacker Neuson G 2.1A Repair Manual Manual pdf 39 page image

5A-1350 HZ PORTABLE GENERATORS G3.3A/G4.6A/GS4.6A/GS5.7A 5A5.18 Generator DisassemblyBridge Rectifier1. Remove the two end cover screws (19) and the endcover (20). See Figure 5-16.2. Remove the four leads from the bridge rectifier (16)confirming lead markings per Figure 5-17.Figure 5-17. Diode Bridge Rectifier3. Remove the choke/rectifier mounting screw (15).Choke1. Remove the bottom mounting screw (17) and care-fully pull choke assembly (18) away from stator (14).See Figure 5-16.2. Disconnect the two leads (Z1 & Z3).Fuel Tank and Control Box1. Remove the fuel tank mounting bolts and tilt the tankto gain access to the gas line and shut off valve.2. Close the fuel valve and disconnect the fuel line.Remove the fuel tank.3. Remove the screws that mount the control panel tothe control box, and disconnect the harnesses andground wire from the control panel. Set the controlpanel aside.4. Remove the screws that mount the control box to thegenerator and set control box aside.Automatic Voltage Regulator (AVR) andBrush AssemblyDisconnect the leads from the AVR (24) and brushholder (23).1. Remove the mounting screw (21), AVR (24) andbrush holder (23).2. Remove 3 mounting screws (25).3. If brushes (22) are to be changed, remove the brushterminal plate and withdraw springs and brushes.New brushes must be seated using a medium gradeabrasive cloth.Stator1. Remove the shaft securing nut (7).2. Remove the four nuts (11) from the four studs (2)securing the generator frame (14) to the engineadapter flange (1).3. For units with electric start:A. Disconnect the negative lead from the batteryterminal first, and then the positive lead.B. Loosen battery mounting bracket nuts and slidemounting bracket off the battery.C. Remove battery and store in cool dry place.4. Remove the two bolts (30) and nuts (31) that mountthe stator (14) to the lifting bracket (10). Remove thetwo bolts (30) and nuts (31) that mount the other endof the stator (14) to the shock mounted support.5. With a block of wood and a mallet, tap stator frameaway from the engine. Withdraw stator frame assembly(14) over the rotor (4) carefully to avoid damage towindings in the stator or rotor.Note:On some occasions, the rotor may come out withthe stator. If it does, skip step 6.6. Support the rotor weight with a sling or place a blockbetween the rotor and base.RotorRotor (3) removed with stator:1. Place stator (14) on flat surface with bearing (8) endup. Elevate the stator by placing two blocks of woodon the edge of the stator frame to allow the rotor todrop.2. Partially screw one of the frame mounting bolts intothe bearing and tap screw with a mallet. The rotorshould drop out of the stator.Rotor (3) still attached to the engine:1. Remove stator per instructions above.2. Release the rotor (3) from the engine shaft by sup-porting rotor in one hand and with a mallet, strikingfirmly on a pole face.Z2F2Z3F1F2F1Z3 Z21023SD53