2-19
GROUP 2 MAIN CONTROL VALVE
VIEW A
DOZER UP
OPTION-B
ARM 1
BOOM 2 &
SWING PRIORITY
SWING
TRAVEL RIGHT
ARM REGENERATION
& OPTION-A(BREAKER)
BUCKET
TRAVEL LEFT
ARM 2
BOOM 1
A
ARM REGENERATION
& OPTION-A(BREAKER)
BUCKET
TRAVEL LEFT
ARM 2
BOOM 1
DOZER DOWN
OPTION-B
ARM 1
BOOM 2 &
SWING PRIORITY
SWING
TRAVEL RIGHT
MRV
Pb21
Dr1
A2
NRV2
A5
ORV
ORV
Pu
NRV1
ORV
B5
B2
ORV
B2
Rs
A5
B4
B5
A1
A2
B1
Dr2
P2
P1
T1
Pn1
Pn2
Pc1
Pb4
Pb3
P04
Pc42
Pb20
Pb1
Pc6
Pc5
Pc40
Pc3
Pc2
Dr0
Pd5
Pd6
Pd2
Pd1
Ai
Pa4
Pa5
Pa1
D1
D2
C6
C4
C1
C2
D6
D4
D5
V3
PO
C5
Pc41
Dr3
ORV
- C4
ORV
- D4
ORV
- C5
ORV
- D5
P03
P05
P04
P3
STRAIGHT TRAVEL
Dr5
Dr4
P02
Patt
Puo
Pb5
Pd41
Pa20
Pd40
Pa21
1. STRUCTURE (TYPE 1)
140L2MC01
Mark
Port name
Port size
Tightening torque
Rs
Make up for swing motor
UNF 1 3/16
18 kgf
余
m (130 lbf
余
ft)
Pa1
Pb1
Pc1
Pd1
Pa20
Pa21
Pb20
Pb21
Pc2
Pd2
Pb3
Pc3
Pa4
Pb4
Pc40
Pc41
Pc42
Pd40
Pd41
Pa5
Pb5
Pc5
Pd5
Pc6
Pd6
P0
Pu
Ai
Patt
P02
P03
P04
P05
P3
Puo
Dr0
Dr1
Dr2
Dr3
Travel left pilot port (BW)
Travel left pilot port (FW)
Travel right pilot port (FW)
Travel right pilot port (BW)
Boom up pilot port
Boom up confluence pilot port
Boom down pilot port
Lock valve pilot port (boom)
Swing pilot port (RH)
Swing pilot port (LH)
Arm in confluence pilot port
Swing priority pilot port
Option A pilot port (breaker)
Arm in regeneration cut port
Arm in pilot port
Lock valve pilot port (arm)
Arm in regen-cut signal selector port
Arm out pilot port
Arm out confluence pilot port
Bucket in pilot port
Bucket out pilot port
Option B pilot port
Option B pilot port
Option C pilot port (dozer blade down)
Option C pilot port (dozer blade up)
Pilot pressure port
Main relief pressure up pilot port
Auto idle signal port
Auto idle signal-attachment
Pilot signal port
Boom priority pilot port
Boom parallel orifice pilot port
Breaker summation pilot port
Quick clamp port
Pilot pressure port
Drain port (travel straight)
Drain port (boom holding valve)
Drain port (boom 2 & swing priority)
Drain port (arm holding valve)
PF 1/4
3.5~3.9 kgf
余
m
(25.3~28.2 lbf
余
ft)
Pn1
Pn2
Negative control signal port (P1 port side)
Negative control signal port (P2 port side)
PF 3/8
7~8 kgf
余
m
(50.6~57.8 lbf
余
ft)
A1
B1
C1
D1
B2
C2
D2
B4
A5
B5
C5
D5
C6
D6
P1
P2
Travel motor left side port (BW)
Travel motor left side port (FW)
Travel motor right side port (FW)
Travel motor right side port (BW)
Boom rod side port
Swing motor port (RH)
Swing motor port (LH)
Option A port (breaker)
Bucket head side port
Bucket rod side port
Option B port
Option B port
Option C pilot port (dozer down port)
Option C pilot port (dozer up port)
Pump port (P1 side)
Pump port (P2 side)
PF 3/4
15~18 kgf
余
m
(109~130 lbf
余
ft)
A2
C4
D4
Boom head side port
Arm head side port
Arm rod side port
PF 1
20~25 kgf
余
m
(115~180 lbf
余
ft)
Dr4
Dr5
Drain port (swing logic valve)
Drain port (flow summation)
PF 1/8
1.5~1.9 kgf
余
m
(10.8~13.7 lbf
余
ft)
T1
Return port
SAE3000, 1 1/2
(M12
佴
1.75)
8.5~11.5 kgf
余
m
(61.5~83.1 lbf
余
ft)
Summary of Contents for HX140L
Page 12: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Page 209: ...4 5 MEMORANDUM...
Page 694: ...8 68 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Page 734: ...8 108 Assemble plug 2 Plug NPT1 16 11 EA 17 21078TM68 21078TM69 21078TM70 21078TM71...
Page 756: ...8 130 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...