- 52 -
WHEELS
Wheel bolts check
Tighten the wheel bolts crosswise using a torque
wrench. Tightenthe bolts in compliance with the
torque in Technical specifications.
Changing tyres
When changing a tyre, please observe that the arrow
on the tyre in top position points in the driving
direction (towards the towbar).
The compressor can have maintenance free bearings,
recognizable by cylindrical hub cap shape (1), or
conventional taper roller bearings, recognizable by
tapered hub cap shape (2), see figure.
Wheel bearing check
Jack up the compressor, release brakes. Turn the
wheels manually and rock.
If any bearing play is noticeable, adjust (taper roller
bearings) or replace (compact bearings).
Wheel bearing maintenance
Remove wheels and wheel hubs.
Mark dismounted wheel hubs and bearing races so
that their identity is not mistaken during reassembly.
Clean wheel hubs thoroughly inside and outside.
Remove old grease totally.
Clean taper roller bearings and seals (using diesel
fuel) and check for reusability.
Work BPW special long-life grease ECO_Li 91 into
the cavities between the taper roller and cage. Smear
grease into the hub's outer bearing race.
Fill the hub caps to 3/4 full with grease.
Fit wheel hubs, adjust the bearing play at taper roller
bearings (see below) and fit the hub caps.
Setting wheel bearing play
Lever off hub cap. Remove split pin from axle nut
and tighten so that rotation of the wheel is slightly
braked.
Turn back the axle nut to the next possible split pin
hole, by a maximum of 30 degrees.
Insert split pin and bend ends slightly outwards.
Check wheel rotation, fit hub cap.
If noticeable bearing play is felt, adjust
bearings (taper roller bearings) or
replace (compact bearings).
The grease in the hub cap and bearing
must not be contaminated with dirt
during this job
To Next Page
Loading...