Operation
64
(A) Dozer blade up.
(B) Dozer blade down.
Overview of control lever functions
The figure shows, in connection with the following table, the
functions of the left and right control levers.
Control levers
Movement
Right control lever
1
2
3
4
Lower boom
Raise boom
Bucket crowd
Bucket dump
Left control lever
A
B
C
D
Arm dump
Arm crowd
Swivel frame to the left
Swivel frame to the right
Operating the boom
•
To raise the boom, pull the right control lever (figure, posi-
tion ) back.
The hydraulic cylinder of the boom is equipped with
a cushioning function, which prevents the exca-
vated material in the bucket from falling out. When
the hydraulic system operating temperature is low,
the cushioning is delayed for approx. 3 to 5 s. This
delay is due to the viscosity of the hydraulic oil and
is not a malfunction.
•
To lower the boom, push the right control lever forward
(figure, position ).
