Troy-Bilt 071 Benutzerhandbuch

Adjust the drive control cable if the yard vacuum does 
not self propel with the drive control engaged, or if the 
unit hesitates while the engine maintains the same speed 
after approximately 20 hours of use. 
To move the z-fitting of the drive control cable from its 
factory set position in the front hole of the drive control to 
the rear hole, proceed as follows:
1.  a. Push the right side of the control out of the right 

hole in the upper handle. See Figure 15A.

  b. Pivot control down towards the lower handle.
  c.  Pivot straight up to remove it from the left hole in 

the upper handle. See Figure 15A.

2.  There is now sufficient slack in the drive control cable 

to grasp the z-fitting with your hand and move it from 
the front hole to the rear hole of the drive control. See 
Figure 15B.

IMPORTANT: Make sure to insert the z-fitting into the 
rear hole as it was inserted in the front hole, that is from 
the 

outside of the drive control.

3.  You may now carefully reinstall the drive control by 

performing the previous steps in the opposite order 
and manner of removal.

IMPORTANT: Once assembled and prior to restarting, 
make sure that the cable is properly adjusted. With the 
drive control disengaged, the unit should freely pull in 
reverse.

If the discharge area becomes clogged, remove the flail 
screen and clean area as follows.
1.  Stop the engine. Make certain the chipper/shredder 

vacuum has come to a complete stop.

2.  Before unclogging the discharge chute, 

and ground the spark plug wire to retaining post.

3.  Remove the vacuum bag or blower chute from the 

unit as instructed in the OPERATION section to obtain 
access to flail screen.

4.  Remove the three self tapping screws securing the 

belt cover, and remove the belt cover. See Figure 16.

5.  Remove self tapping screw on right side of unit that 

attaches to the flail screen. See Figure 17.

6.  Remove hex screw on top of rear housing near 

mounting bracket and the flange lock nut that secures 
flail screen. See Figure 17.

7.  Remove and clean the screen by scraping or washing 

with water. See Figure 18.

8.  Reinstall the screen.