Komatsu 80001 User Manual

SEN03774-01 10 Structure, function and maintenance standard
2 PC130-8
Control valve 1
Outline
The control valves of the following types are set.
q 6-spool valve (Without service valve)
q 7-spool valve (6-spool valve + service valve)
q 8-spool valve (6-spool valve + 2 service valves)
The appearance and section of only the 8-spool valve (6-spool valve + 2 service valves) are shown here.
A1 : To swing motor
A2 : To left travel motor
A3 : To right travel motor
A4 : To boom cylinder bottom
A5 : To arm cylinder head
A6 : To bucket cylinder head
A7 : To attachment 1
A8 : To attachment 2
B1 : To swing motor
B2 : To left travel motor
B3 : To right travel motor
B4 : To boom cylinder head
B5 : To arm cylinder bottom
B6 : To bucket cylinder bottom
B7 : To attachment 1
B8 : To attachment 2
BP1: From boom raise PPC valve
LS : To pump LS valve
LS1 : LS1 pressure pick-up port
LS2 : LS2 pressure pick-up port
LS3 : LS3 pressure pick-up port
P1 : From main pump
P2 : From main pump
PA1: From swing right PPC valve
PA2: From left travel forward PPC valve
PA3: From right travel reverse PPC valve
PA4: From boom raise PPC valve
PA5: From arm dump PPC valve
PA6 : From bucket dump PPC valve
PA7 : From attachment 1 PPC valve
PA8 : From attachment 2 PPC valve
PB1 : From swing left PPC valve
PB2 : From left travel reverse PPC valve
PB3 : From right travel forward PPC valve
PB4 : From boom lower PPC valve
PB5 : From arm in PPC valve
PB6 : From bucket curl PPC valve
PB7 : From attachment 1 PPC valve
PB8 : From attachment 2 PPC valve
PMAX: Pressure sensor port
PP : To main pump
PP1 : PP1 pressure pick-up port
PP2 : PP2 pressure pick-up port
PPI1 : Pump 1 pressure pick-up port
PPI2 : Pump 2 pressure pick-up port
PR : To solenoid valve and EPC valve
PRI : PR pressure pick-up port
PS : From solenoid valve of merge-divider valve
PS2 : To tank
PST : From solenoid valve of travel junction sole-
noid valve
PX : 2-stage relief solenoid valve
TB : To tank
TC : To oil cooler
TS1 : To tank
TSW : To swing motor
1. Cover
2. Service valve 2
3. Service valve 1
4. Bucket valve
5. Arm valve
6. Boom valve
7. Right travel valve
8. Left travel valve
9. Swing valve
10. Block
11. Swing bleeding valve
12. LS check valve
13. Travel junction valve + LS check valve
14. Arm regeneration valve
15. Boom hydraulic drift prevention valve
16. Merge-divider valve block

Komatsu 80001 Specifications

General

Brand	Komatsu
Model	80001
Category	Excavators
Language	English