6-46
※
MEASURING BOOM AND BUCKET CYCLE TIME
LIFTING TIME OF BOOM
Set the bucket near the maximum tilt back
position and at the lowest position on the
ground. Raise the bucket and measure
the time taken for bucket to reach the
maximum height of the boom.
1) MEASUREMENT CONDITION
·
Coolant temperature : Inside operating range
·
Steering position : Neutral
·
Hydraulic temperature : 40~50˚C
·
Bucket : Unloaded
·
Engine speed : High idling
2) MEASURING TOOL
·
Stop watch (1EA)
3) MEASURING PROCEDURE
Lifting time of boom
Lowering time of boom
Dumping time of bucket
Rollback time of bucket
(1)
LOWERING TIME OF BOOM
Set the bucket horizontal with the boom at
the maximum height, lower the bucket and
measure the taken for the bucket to reach
the lowest position on the ground.
(2)
DUMPING TIME OF BUCKET
Raise the boom to the maximum height
and measure the time taken for the bucket
to move from the maximum tilt back
position to the maximum dump position
ROLL BACK TIME OF BUCKET
Raise the boom to the maximum height
and measure the time taken for the bucket
to reach the maximum tilt back position.
(3)
(4)
7609A6WE25
7609A6WE26
7609A6WE27
Summary of Contents for HL955
Page 557: ...7 6 MEMORANDUM MEMORANDUM ...
