Komatsu PC200-8M0 Shop Manual page 119

401 Hydraulic system, Part 1
Hydraulic pump
Outline
This pump consists of 2 variable capacity
q
swash plate piston pumps, PC valve, LS valve,
and EPC valve.
IMF : Front PC mode selector current
IMR : Rear PC mode selector current
ISIG : LS set pressure selector current
PAF : Front pump discharge port
PAR : Rear pump discharge port
PBF : Pump pressure input port
PD1F : Case drain port
PD1R : Air bleeder
PD2F : Drain plug
PD2R : Drain plug
PENF : Front control pressure detection port
PENR : Rear control pressure detection port
PEPC : EPC basic pressure port
PEPCC : EPC basic pressure detection port
PFC : Front pump discharge pressure detection
port
PLSF : Front load pressure input port
PLSFC : Front load pressure detection port
PLSR : Rear load pressure input port
PLSRC : Rear load pressure detection port
PMF : Front PC mode selector pressure detec-
tion port
PMR : Rear PC mode selector pressure detec-
tion port
PRC : Rear pump discharge pressure detection
port
PS : Pump suction port
PSIG : LS set selector pressure detection port
1. Front pump
2. Rear pump
3. LS valve
4. PC valve
5. LS-EPC valve
6. PC-EPC valve
PC200, 200LC, 220, 220LC-8M0
SEN06119-00
7
10-401