Komatsu SK818-5 Operation & Maintenance Manual page 227

The lever (2) controlling the pattern change valve has two po-
sitions:
A - Position for the ISO PATTERN CONTROL SYSTEM
B - Position for the OPTION PATTERN CONTROL SYSTEM
CHANGING THE OPERATING PATTERN
2
A
ISO PATTERN
F
N
R
B 2
OPTION PATTERN
F
N
R
RKAB1390
N
RKA10390
RKAB1400
F
N
R
RKA10400
225