Hyundai HX140L, Manual

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7-11
Boom cylinder
Raise
Lower
Roll in
Roll out
0.5m
0.5m
Roll in Roll out
Arm cylinder
Bucket cylinder
90
HYDRAULIC CYLINDER CYCLE TIME
Measure the cycle time of the boom,
standard arm, and standard bucket
cylinders.
Preparation
To measure the cycle time of the boom
cylinders:
With the arm rolled out and the empty
bucket rolled out, lower the bucket to the
ground, as shown.
To measure the cycle time of the arm
cylinder.
With the empty bucket rolled in, position
the arm so that it is vertical to the ground.
Lower the boom until the bucket is 0.5 m
above the ground.
To measure the cycle time of the bucket
cylinder.
The empty bucket should be positioned
at midstroke between roll-in and roll-out,
so that the sideplate edges are vertical to
the ground.
Keep the hydraulic oil temperature at
50
·
5˚C.
Measurement
Select the following switch positions.
Power mode switch : P mode
To measure cylinder cycle times.
Boom cylinders.
Measure the time it takes to raise the
boom, and the time it takes to lower the
boom. To do so, position the boom at
one stroke end then move the control
lever to the other stroke end as quickly
as possible.
Arm cylinder.
Measure the time it takes to roll in the
arm, and the time it takes to roll out the
arm. To do so, position the bucket at
one stroke end, then move the control
lever to the other stroke end as quickly
as possible.
9)
(1)
(2)
ྙ
ྚ
ྛ
ྜ
(3)
ྙ
½
ྚ
-
-
14097MS10