EXCAVATOR OPERATION
36
OPERATION OF THE BOOM
To raise the boom, pull the attachment control lever back.
The boom is equipped with a cushion cylinder which helps
prevent excavated material in the bucket from falling out.
At low hydraulic oil temperature, (e.g. after starting the
engine in cold weather) the cushioning function will be
effected for a short period of time (approx. 3 to 5
seconds). This condition results from the viscosity of the
hydraulic oil and is not a sign of malfunction.
The cushion cylinder will operate normally as the oil
warms up.
To lower the boom, push the attachment control lever
forward.
A
When lowering the boom, make sure that it does not
hit the dozer and that the bucket teeth do not touch the
dozer.
OPERATION OF THE ARM
Pull back the attachment control lever and the arm will be
pulled in. To move the arm out, push the control lever
towards the front.
A
When pulling in the arm, the movement may stop for a
short moment when the arm is in its vertical position.
This is caused by the combined load of the arm and
bucket moving the cylinder piston away from the
hydraulic flow causing a delay in the cylinder action,
until the flow catches up with cylinder piston. This is a
characteristic of the hydraulic system and is not a sign
of malfunction.
Summary of Contents for KX040-4
Page 10: ......
Page 18: ...SAFE OPERATION 8 6 DANGER WARNING AND CAUTION LABELS...
Page 19: ...9 SAFE OPERATION...
Page 20: ...SAFE OPERATION 10...
Page 21: ...11 SAFE OPERATION...
Page 22: ...SAFE OPERATION 12...
Page 23: ...13 SAFE OPERATION...
Page 69: ...45 EXCAVATOR OPERATION...
Page 125: ...101 LIFTING CAPACITY...
Page 126: ...102 LIFTING CAPACITY...