37EXCAVATOR OPERATION
TWO PATTERN SELECTION SYSTEM
(TPSS)
To avoid personal injury or death:
A Study control lever pattern A and pattern B.
Then choose the one which is most familiar.
A Familiarize yourself with the pattern selected
by operating slowly.
BPattern Change
1. Open the cover and position the pattern selector lever
to the desired position.
2. Close the cover.
(1) Pattern selector lever
(Two Pattern Selection System:TPSS)
(A) "Pattern A"
(B) "Pattern B"
Lever
Position
Attachment
Control Lever
(Left)
Attachment
Control Lever
(Right)
Pattern A
A
B
C
D
Boom down
Boom up
Swing left
Swing right
Arm out (up)
Arm in (crowd)
Bucket crowd
Bucket dump
Pattern B
A
B
C
D
Arm out (up)
Arm in (crowd)
Swing left
Swing right
Boom down
Boom up
Bucket crowd
Bucket dump