Removing and Replacing the Chipper Blade
WARNING! Before performing any maintenance procedure, stop the engine and disconnect the spark plug wire.
WARNING! Do not attempt to
Tools Needed: | Blower | |
(2) 1/2" wrench or socket | ||
9/16" wrench or socket | Cover | |
Plate | ||
3/16" Allen wrench | ||
|
1.Disconnect the Blower Exit Elbow Assembly from the Collector Box Hose (Figure 44).
2.Remove the Wing Nuts and Wing Screws to disconnect the Inlet Hose Adapter and Blower Exit Elbow Assembly from the Chipper/Blower unit (Figure 45).
3.Using two (2) 1/2" wrenches or sockets, remove the 12 Bolts & Nuts retaining the Blower Cover Plate (Figure 45) and remove the plate from the blower housing. The Chipper Impeller is now exposed.
4.Using the 9/16" wrench or socket, remove the Chipper Impeller retaining bolt from the engine shaft and slide the impeller off of the shaft (Figure 46). Be sure to save the key in the slotted shaft.
5.The Chipper Blade is attached to the impeller with three (3) Allen head screws and three (3) nylon lock nuts (Figure 46). Using the 3/16" Allen wrench and 1/2" wrench, remove the old Chipper Blade by removing the three (3) screws and nuts.
Note: Carefully observe the orientation of the Chipper Blade edge and mounting holes when removing the blade.
6.Install the new Chipper Blade and Impeller
in the reverse order making sure the key is Allen
installed in the engine shaft keyway. Head
Screw
Wing | Blower Exit |
Screw | Elbow |
Assembly | |
| Wing |
| Nut |
| |
| Inlet |
| Hose |
| Adapter |
| Bolt & |
| Nut |
| |
Figure 45 |
|
Back Chipper | Front |
Impeller |
|
Bolt |
|
| Nylon |
| Nut |
Chipper Blade |
|
Figure 46 |
|
Note: If the Safety Interlock Switch is not engaged, adjust the switch mounting bracket by loosening the bracket bolt and sliding the bracket up so that the button on the switch is fully depressed against the Blower Exit Elbow Assembly. See page 16.
DR COMMERICAL LEAF and LAWN VACUUM Safety & Operating Instructions | 39 |
