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17

Reassembly

TP-7088    6/17

KohlerPower.com

Install Front Cover

1.  Attach front cover to engine main bearing cover. 

Torque to 53.5 N·m (474 in. lb.).

Install Rotor

NOTE:  Before installing rotor make sure crankshaft 

taper and rotor are clean, dry, and completely 

free of any lubricants. Presence of lubricants 

can cause rotor to be over stressed and 

damaged when screw is torqued to 

speci

fi

 cations.

1.  Mount rotor to engine shaft. Tighten through bolt.

Install Stator

1.  Assemble rear cover to stator and pull out stator wire 

harness through opening of rear cover.

2.  Torque stator and rear cover screws to 10.4 N·m 

(92 in. lb.).

3.  Press stator with rear cover evenly onto rotor. Tap 

with a rubber mallet to ensure rotor bearing is 

pressed into rear cover.

4.  Tighten rear cover screws to front cover. Torque to 

4.5 N·m (40 in. lb.).

5.  Set rubber mount screws into rear cover. Do not 

tighten nuts at this moment.

Install Brush Holder

NOTE:  Install brush holder evenly onto rear cover using 

locating pin. If set incorrectly, damage may occur 

when tightened with screw or when generator is 

started.

1.  Install brush holder. Torque screw to 4 N·m 

(35 in. lb.).

Install AVR

1.  Attach connectors to brush holder, AVR unit. Torque 

screws to 4 N·m (35 in. lb.).

Install End Cover

1.  Tighten earth (ground) wire (green) to rear cover 

with screw and washer.

2.  Assemble earth (ground) wire between frame and 

rear cover rubber mount. Torque nuts to 

18.3 N·m (162 in. lb.).

3.  Assemble wire terminal to wiring board.
4.  Assemble end cover to rear cover. Torque screws to 

4 N·m (35 in. lb.).

Install Muffl er

1. Assemble 

muf

fl

 er pipe and gasket to engine exhaust 

and snug screws.

2. Assemble 

muf

fl

 er bracket to rear cover and snug 

screws.

3.  Torque screws to:
 

M8 25 N·m (221 in. lb.).

 

M10 32.5 N·m (288 in. lb.).

4. Attach 

muf

fl

 er cover to muf

fl

 er. Torque to 

9.9 N·m (87 in. lb.).

Install Control Panel

1.  Place control panel onto frame. Torque to 

9.9 N·m (87 in. lb.).

Install Fuel Tank

1.  Mount fuel tank on frame. Torque nuts to 

9.9 N·m (87 in. lb.).

2.  Replace fuel hose to fuel valve.

Generator is now completely reassembled. Before 

starting or operating engine, be sure to follow steps 

below.
1.  Make sure all hardware is tightened securely.
2.  Turn on fuel supply.
3.  Replace battery (if equipped).
4.  Start generator following starting instructions.
5.  Check for proper voltage at receptacles.

Summary of Contents for PRO6.4

Page 1: ...m 14 Disassembly Inspection and Service 16 Reassembly IMPORTANT Read all safety precautions and instructions carefully before operating equipment Ensure equipment is stopped and level before performin...

Page 2: ...re pedestrians or children are not likely to touch generator Be sure to carry generator only by its carrying handles WARNING Rotating Parts can cause severe injury Always maintain a safe distance whil...

Page 3: ...lbs 93 kg 206 lbs 101 kg 222 lbs AC Rated Power 5200 Watt 120 Volts x 43 3 Amps 240 Volts x 21 7 Amps 7200 Watt 120 Volts x 60 Amps 240 Volts x 30 Amps AC Maximum Power 6400 Watt 120 Volts x 53 3 Amps...

Page 4: ...ol Panel Electrical Components M3 Screws M4 Screws 1 3 N m 11 in lb 2 9 N m 26 in lb Control Panel 9 9 N m 87 in lb End Cover 4 0 N m 35 in lb Engine Alternator Rubber Mounts 18 3 N m 162 in lb Frame...

Page 5: ...ish Fastener Torque Recommendations for Standard Applications Bolts Screws Nuts and Fasteners Assembled Into Cast Iron or Steel Grade 2 or 5 Fasteners Into Aluminum Size Grade 2 Grade 5 Grade 8 Tighte...

Page 6: ...at circuit breaker and receptacles Stator is faulty Test for voltage and resistance Brushes are faulty Test for resistance between brushes and slip ring AVR is faulty Test for voltage Low voltage at s...

Page 7: ...th engine stopped check exciting coil stator winding resistance between wires with ohmmeter or circuit tester Replace if out of specification See Figure 1 Brush resistance With engine stopped remove b...

Page 8: ...heck circuit breakers and receptacles Unit Item Generator Spec REMARK PRO6 4 6 4E PRO9 0 9 0E Main Winding Red Blue 0 27 10 0 13 10 Red White PRO9 0E White Black 0 27 10 0 13 10 Field Winding Between...

Page 9: ...Main Winding 2 C Exciter Field Coil D Sub Coil E Circuit Breaker 18 5A F 240 120V 30A Electrical Socket G Circuit Breaker 30A H 120V 30A Electrical Socket I Circuit Breaker 20A J GFCI Receptacle K Gr...

Page 10: ...0V 30A Electrical Socket J 120V 30A Electrical Socket K GFCI Receptacle L Circuit Protector 20A M Circuit Protector 30A N Ground Terminal O Auto Throttle Switch P 12V DC Receptacle Q On Off Start Swit...

Page 11: ...ding 1 B Main Winding 2 C Exciter Field Coil D Sub Coil E Circuit Breaker F 240 120V 30A Electrical Socket G 120V 30A Electrical Socket H GFCI Receptacle I Circuit Protector 20A J Ground Terminal K En...

Page 12: ...H 240 120V 30A Electrical Socket I 120V 30A Electrical Socket J GFCI Receptacle K Circuit Protector 20A L Ground Terminal M Auto Throttle Switch N 12V DC Receptacle O On Off Start Switch P Auto Idle M...

Page 13: ...olored wires used for easy identification To replace wires use heat resistant type wires permissible temperature range 75 C 167 F or over and same gauge of wire that is removed 1 Install receptacles c...

Page 14: ...l Box C Rotor D Through Bolt E Stator F Stator Cover G Rear Cover H AVR I End Cover J Wiring Board K Brush Holder L Front Cover M Muffler Bracket N Muffler Cover O Muffler P Exhaust Pipe Q Fuel Valve...

Page 15: ...ws 1 Disconnect spark plug lead s 2 Disconnect negative battery cable from battery Do not allow children to operate generator Accidental Starts can cause severe injury or death Disconnect and ground s...

Page 16: ...F G H B I K J Q N O P A R L M A Control Panel B Control Box C Rotor D Through Bolt E Stator F Stator Cover G Rear Cover H AVR I End Cover J Wiring Board K Brush Holder L Front Cover M Muffler Bracket...

Page 17: ...or when generator is started 1 Install brush holder Torque screw to 4 N m 35 in lb Install AVR 1 Attach connectors to brush holder AVR unit Torque screws to 4 N m 35 in lb Install End Cover 1 Tighten...

Page 18: ...NOTES 18 KohlerPower com TP 7088 6 17...

Page 19: ...NOTES 19 TP 7088 6 17 KohlerPower com...

Page 20: ...2017 by Kohler Co All rights reserved 20 KohlerPower com TP 7088 6 17...

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