2-79
When motor stop
When motor stop
When operator moves a travel control lever to neutral position, pump oil flow is blocked. It reduce
oil pressure of supply line down to zero, and oil in the spool chamber moves back to oil tank
through counter orifice by the return force of spring in opposite side, and then counter balance
spool returns to neutral position.
As the counter balance spool moves to left, line
ⓐ
is blocked, parking brake line is connected to
drain passage designed in the center of counter balance spool, and oil in the parking brake
chamber return to tank, finally brake piston return to parking ON position.
Spool
chamber
Spring
A fuel inlet of
cylinder block
(Hatching part)
Check valve
B Port
(OUT Port)
A Port
(IN Port)
a
b
Counter
balance
spool
Brake fluid pressure way
Counter
orifice
145Z9A2TM12
②
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...