2-65
Parking brake
Parking brake
Running
Running
When the pressurized oil is supplied from
the valve, the spool of brake valve in the
hydraulic motor assembly actuates to open
the passage to the parking brake and the
pressurized oil is introduced into cylinder
chamber (a) which is composed of the
spindle of reduction gear assembly and
piston (12). When the hydraulic pressure
reaches 9.5 kgf/cm
2
or more, it overcomes
the force of spring (13) and shifts piston
(12). With shift of piston (12), no pressing
force is applied to mating plate (16) and
friction plate (15) and movement of fric-
tion plate (15) becomes free. Whereby the
brake force to the cylinder in the hydraulic
motor assembly is released.
13
12
101
a 15 16
Stopping
Stopping
When the pressurized oil from the brake
valve is shut off and the pressure in cyl-
inder chamber (a) drops 9.5 kgf/cm
2
or
less, piston (12) will return by the force of
spring (13). Piston (12) is pushed by this
force of spring (13), and mating plate (16)
and friction plate (15) in free condition are
pressed against the spindle of reduction
gear assembly. The friction force produced
by this pressing stops rotation of the
cylinder and gives a braking torque 19.7
kgf
·
m to the hydraulic motor shaft. Note
that oil control through a proper oil pas-
sage ensures smooth operation.
13
12
101
a 15 16
14092TM08
14092TM09
(3)
(3)
①
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...