DR 18.0 HP, Operating And Assembly Instruction Manual

16

CENTRIFUGAL CLUTCH INSTALLATION AND SERVICING INSTRUCTIONS 

FOR CLUTCH PART NUMBER 911-0236 

REMOVAL

1.  Remove clutch from shaft by removing bolt and washers.   
2.  Slide clutch off shaft.   
3.  Remove key from keyway. 
 

INSTALLATION 

 
1.  Clean the shaft and remove any burrs. 
2.  Install spacer onto shaft. 
3.  Apply anti-seize compound to shaft. 
4.  Place key in keyway in shaft. 
5.  Slide clutch onto shaft. 
6.  Secure clutch with washer and bolt.  Be sure to use loctite 243 on the threads of the bolt. 
 

MAINTENANCE 

 
The centrifugal clutch on this machine is permanently lubricated and does not require oil or grease.  Always replace 
shoes and springs in sets; whenever shoes are changed, replace all springs. 
 

DISASSEMBLY OF EXISTING CLUTCH 

 
1.  Remove retainer ring and press off drum assembly. 
2.  Release one hook end of spring from shoe pin.  Use tape wrapped pliers to avoid nicking spring. 
3.  Remove shoes from hub. 
 

RE-ASSEMBLY 

 
1.  Locate the shoes correctly on the hub for rotation required. 
2.  Place one end of each spring in hole at end of shoe, stretch spring just enough to clear hole on adjacent shoe.  

Use tape wrapped pliers to avoid nicking spring.  Avoid overstretching spring as this may damage spring.  
Repeat for all shoes. 

3.  Re-assemble drum to hub, secure with retaining ring. 
4.  Re-install clutch on shaft. 

CLUTCH PARTS LIST 

Complete Part 911-0236 

Item No.  Part No. 

Quantity 

Description 

1 
2 
3 
4 
6 

911-0236-3 
911-0046-4 
911-0236-5 
911-0046-2 
912-2644-7 

1 
3 
3 
1 
2 

Hub Assy. 
Shoe 
Spring 
Drum Assy. 
Retaining Ring