Bil-Jax Wheelchair XLB-4232 DC Benutzerhandbuch

3.  Lubricate the slew ring bearing grease fitting labeled  LUBRICATE  SEMI-

ANNUALLY  with NLGI Grade 2 multi-purpose grease. Wipe off dirt and 
grease residue. Rotate the boom and add approximately ½ ounce of grease to 
each bearing quadrant. See Figure 4-3 for the location of the slew ring bearing 
grease fitting. 

 

16.  Determine whether the boom lift is equipped with an Al-Ko axle (hex tube) or 

Dexter axle (square tube). Lubricate the boom lift axle per the applicable 
procedure in step 5 or 6. 

17.  Clean and repack Al-Ko axle wheel bearings according to the following 

general instructions: 

a.  Use the outriggers to raise the trailer wheels. 

b.  Remove the spindle caps, cotter pins, spindle nuts, washers, outer wheel 

bearings, and wheels. Remove inner wheel bearings. 

c.  Clean wheel bearings, bearing races, and spindle with solvent and lint-free 

cleaning cloths. 

d.  Repack inner and outer wheel bearings with a reputable NLGI Grade 2 

polyurea type, lithium-based, high-temperature, wheel bearing grease 
(minimum 440

°

F dropping point).  

e.  Apply a thin film of grease to the bearing races and spindles. 

f. 

At each wheel, install inner bearing, wheel, outer bearing, washer, and 
spindle nut. Turn wheel and tighten spindle nut until wheel hub binds.  

g.  Hold the wheel stationary and loosen the spindle nut. Finger tighten the 

spindle nut, then back off as needed to align the cotter pin hole. The wheel 
should be free to spin without binding or excess free play. 

h.  Install cotter pin and spindle cap.