7-8
SWING SPEED
Measure the time required to swing three
complete turns.
Preparation
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.
Keep the hydraulic oil temperature at
50
·
5˚C.
Measurement
Select the following switch positions.
Power mode switch : P mode
Operate swing control lever fully.
Swing 1 turn and measure time taken to
swing next 3 revolutions.
Repeat steps
ྚ
and
ྛ
three time and
calculate the average values.
Evaluation
6)
(1)
(2)
ྙ
ྚ
ྛ
ྜ
(3)
ྙ
½
ྚ
ྛ
ྜ
Unit : Seconds / 3 revolutions
The time required for 3 swings should meet the following specifications.
Model
HX140 L
Power mode switch
P mode
Standard
15.6
·
1.5
Maximum allowable
19.5
(4)
14097MS07
Содержание HX140L
Страница 12: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Страница 209: ...4 5 MEMORANDUM...
Страница 275: ...4 49 No of pin Receptacle connector female Plug connector male 14 1 7 6 14 MG610406 KET SDL CONNECTOR 13...
Страница 675: ...8 58 29 Insert O rings to the relief valve 30 and reassemble them to rear cover 20 This completes assembly 17 32038SM42...
Страница 694: ...8 68 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Страница 703: ...8 77 125LCR8TM61 After assembling spring 44 in order clamp plug 41 Tightening torque 5 kgf m 36 lbf ft 31...
Страница 734: ...8 108 Assemble plug 2 Plug NPT1 16 11 EA 17 21078TM68 21078TM69 21078TM70 21078TM71...
Страница 756: ...8 130 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...
Страница 767: ...8 141 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...