1.3
General repair instructions
BOMAG
20
008 911 63
Feather keys and keyways
!
Caution
Feather keys must only be reused if they show no
differences to new feather keys, any notches must
be considered as initial signs of wear.
Fig. 4
●
Clean and thoroughly examine the feather key.
●
Debur and thoroughly clean the edges of the key-
way with a fine file before reassembling.
Ball and roller bearings
!
Caution
Ball and roller bearings must only be reinstalled
after it has been assured that they are in perfect
condition.
Fig. 5
●
Remove any lubricant residues from the bearing to
be examined by washing it with gasoline or any oth-
er appropriate degreasing agent. Cleanliness is of
utmost importance for all related work.
●
Check balls or rollers, running surfaces, outer faces
of outer races and inner faces of inner races for vis-
ible damage. If necessary replace the bearing with
a new one, since these symptoms are first signs of
wear.
●
Hold the bearing with you thumb and the index fin-
ger by the inner race, rotate the outer race and
make sure that it runs without friction. Hold the
bearing by the outer race and repeat this test with
the inner race.
●
Move the outer race gently to and fro while holding
it by the inner race; check for resistance while rotat-
ing and replace the bearing if it does not work cor-
rectly.
●
Lubricate the bearing with an appropriate lubricant
before reinstalling.
