E&J 3J01-INS-LAB-RevB13 User Manual

Check the crossbraces to ensure that the bolt and nut securing both 
crossbraces in the center of the wheelchair are secure (crossbraces 
should be loose enough to fold easily, yet snug enough to take up excess 
play). Use an M13 wrench and M5 hex key to tighten.

1.  Use an M10 

wrench to loosen 
the adjustment 
bolt until the 
wheel lock slides 
on the frame.

2.  Place the wheel 

lock in the 
locked position 
and slide it into 
contact with the 
tire.

3.  Place the wheel lock in the unlocked position and slide it 

3

/

8

" closer 

to the tire.

4.  Use an M10 wrench to tighten the adjustment bolt and engage the 

wheel lock to check the fit. The wheel lock should indent the tire at 
least 

3

/

8

".

5.  Repeat steps 1-4 for other wheel lock. Tighten the adjustment bolts 

securely to eliminate wheel lock movement on frame.