Maintenance – Checking – Cleaning
Assembly and instruction manual
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BL164 GB Edition 07/2017
9.3.4
Track rollers / guide rollers
Calculating wear
Wear is calculated using a calibrated Vernier calliper. Also check for
scoring, cavity formation and flaking.
The roller must be replaced once it reaches / exceeds the wear
dimensions.
Track rollers
Wear limit
(Ø )
Ø new
Ø min.
32.37 mm /
35.00 mm
30.90 mm /
33.50 mm
b new
b min.
17.90 mm
16.40 mm
Also check the play and condition of the bearing.
Replace the track roller
Release the screw and remove
the track roller.
Tools required:
Wrench AF = 13 mm
Hexagon socket AF = 5 mm
b
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