7-11
Boom cylinder
Raise
Lower
0.5m
Roll in
Roll out
Arm cylinder
Bucket cylinder
Roll in
Roll out
90
0.5m
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
Ü
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)
Η
Θ
Ι
Κ
(3)
Η
Â
Θ
-
-
145ZF7MS10
Содержание HX145 LCR
Страница 11: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Страница 204: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV...
Страница 553: ...8 82 Insert O rings to the relief valve 30 and reassemble them to rear cover 20 This completes assembly 17 32038SM42...
Страница 627: ...8 155 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Страница 636: ...8 164 125LCR8TM61 After assembling spring 44 in order clamp plug 41 Tightening torque 5 kgf m 36 lbf ft 31...
Страница 657: ...8 185 8 185 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...
Страница 668: ...8 196 14 15 3 Install cover 3 to body 1 and tighten bolts 14 Torque 10 12 5 kgf m 72 3 90 4 lbf ft 7 21078DA10...