II-23
SPECIFICATIONSSTANDARDS FOR JUDGING PERFORMANCE
Natural Travel Drop
• Engine : Idling R.P.M.
• Hydraulic Oil Temp. : 50~60°C
• Grade : 15°
• Measurement Posture : Travel Posture
• Park the machine with the parking brake applied,
and wait for one minute. Then, measure the amount
of spontaneous travel drop.
Arm Cylinder Speed
• Engine : Maximum R.P.M.
• Hydraulic Oil Temp. : 50~60°C
• Measurement Posture : The bucket cylinders
should be retracted as far as possible.
• Measure the time required to raise the arm from a
fully retracted to a fully extended position. (This
time should not include the time allowed for op-
eration of the cushion.)
Bucket Cylinder Speed
• Engine : Maximum R.P.M.
• Hydraulic Oil Temp. : 50~60°C
• Measurement Posture : Make sure that the bucket
pin (1) and the arm foot pin (2) are at the same
height.
• Then measure the time required for the bucket
cylinder to completely retract (extend) from a
fully extended state (retracted state).
Natural Cylinder Drop
Lift Arm, Bucket, Bucket Tip
• Engine : Maximum R.P.M.
• Hydraulic Oil Temp. : 50~60˚C
• Measurement Posture : Make sure that the bucket
pin (1) and the arm foot pin (2) are at the same
height and bring the bucket to a level position.
• Maintain this position for 10 minutes, then mea
-
sure the change in rod length and the distance the
bucket tip falls.
To Next Page
Loading...
