Hyundai r35z-7 Workshop Manual page 231

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
screws for loosening.
Check the lubrication of the swing
bearing. Confirm that bearing rotation is
smooth and without noise.
Install a dial gauge on the track frame as
shown, using a magnetic base.
Position the upperstructure so that the
boom aligns with the tracks facing
towards the front idlers.
Position the dial gauge so that its needle
point comes into contact with the bottom
face of the bearing outer race.
Bucket should be empty.
( ( 3) Measurement
With the arm rolled out and bucket rolled
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 it
to raise the front idler 50cm.
Record the dial gauge reading(h2).
Calculate bearing play(H) from this
data(h1 and h2) as follows.
H=h2-h1
( ( 4) Evaluation
The measured drift should be within the following specifications.
Model
R35Z-7
Measurement : h1
Measurement : h2
Standard Maximum allowable
0.5 ~ 1.2
6-10
Remarks
2.4
7-10(1) 140-7
R35Z76MC09
R35Z76MC10
Unit : mm