Hyundai HX130LCR Manual page 403

8) SWING BEARING PLAY
(1) Measure the swing bearing play using a
dial gauge to check the wear of bearing
races and balls.
(2) Preparation
Check swing bearing mounting cap
①
screws for loosening.
Check the lubrication of the swing
②
bearing. Confirm that bearing rotation is
smooth and without noise.
Install a dial gauge on the track frame as
③
shown, using a magnetic base.
Position the upperstructure so that the
④
boom aligns with the tracks facing
towards the front idlers.
Position the dial gauge so that its needle
⑤
point comes into contact with the bottom
face of the bearing outer race.
Bucket should be empty.
⑥
Measurement
(3)
With the arm rolled out and bucket rolled
①
in, hold the bottom face of the bucket to
the same height of the boom foot pin.
Record the dial gauge reading (h1).
Lower the bucket to the ground and use
②
it to raise the front idler 50cm.
Record the dial gauge reading (h2).
Calculate bearing play (H) from this data
③
(h1 and h2) as follows.
H=h2-h1
(4) Evaluation
The measured drift should be within the following specifications.
Model
HX130CR
HX130LCR
Measurement : (h1)
Measurement : (h2)
Standard Maximum allowable
0.5 ~ 1.5
7-10
Remarks
3.0
(210-7) 7-10(1)
145ZF7MS09
Unit : mm