Hyundai HX130LCR Manual page 402

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SWING FUNCTION DRIFT CHECK

Measure the swing drift on the bearing

outer circumference when stopping after

a 360˚ full speed swing.

Check the lubrication of the swing gear

and swing bearing.

Place the machine on flat, solid ground

with ample space for swinging. Do not

conduct this test on slopes.

With the arm rolled out and bucket rolled

in, hold the bucket so that the height of

the bucket pin is the same as the boom

foot pin. The bucket must be empty.

Make two chalk marks: one on the swing

bearing and one directly below it on the

track frame.

Swing the upperstructure 360˚.

Keep the hydraulic oil temperature at

Conduct this test in the M mode.

Select the following switch positions.

·Power mode switch : P mode

Operate the swing control lever fully and

return it to the neutral position when the

mark on the upperstructure aligns with

that on track frame after swinging 360˚.

Measure the distance between the two

Align the marks again, swing 360。, then

test the opposite direction.

Repeat steps ④ and ⑤ three times each

and calculate the average values.

The measured drift angle should be within the following specifications.

Power mode switch

Maximum allowable

Swing start & stop

Unit : Degree

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