SANY SY155U, Руководство по эксплуатации и обслуживанию, Страница: 47 / 192

MACHINE CONTROLS
3-17 SY155U Excavator OMM
In the BHL mode, the left joystick controls the boom and
upper structure as follows:
• Swing the upper structure to the left (1)
• Boom down (2)
• Swing the upper structure to the right (3)
• Boom up (4)
• Neutral (N)
NOTE: When the joystick is released, it will return to the
neutral position and the machine functions will
stop.
Right Joystick—BHL Mode
0003646
Figure 3-28
In the BHL mode, the right joystick controls the arm and
bucket:
• Bucket curl (1)
• Arm out (2)
• Bucket uncurl (3)
• Arm in (4)
• Neutral (N)
NOTE: When the joystick is released, it will return to the
neutral position and the machine functions will
stop.
Pattern Change (SAE/BHL) Valve
The pattern change valve (1) is located inside the right
front access door.
0003667
Figure 3-29 SAE Mode
0004521
Figure 3-30 BHL Mode
NOTICE!
Shut down the engine and relieve hydraulic
system pressure before adjusting the pattern
change (SAE/BHL) valve. Failure to follow this
notice could result in damage to the machine or
cause the machine to operate improperly.
The pattern change valve changes the control patterns of
the left and right joysticks. See “Joystick SAE Mode” on
page 3-16 and “Joystick BHL Mode” on page 3-16.
NOTE:
To switch the pattern change valve from SAE to
BHL, loosen or remove the fastener (2) from the
threaded hole and rotate the valve handle (3) 90°.
Install and tighten the fastener to lock the pattern
change valve in the desired position.
4
3 1
2
N
1
2
3
1
2
3