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5.2 Outrigger
Outrigger control box is located on the left/right side beam of chassis frame behind the front
outrigger boxes. It is convenient and reliable to make outriggers telescope synchronously or
independently by outrigger control box.
The outrigger’s telescoping is shown as following:
Outrigger control box
Pressure gauge
Front left outrigger box
Level gauge
Vertical cylinder
The 1st section outrigger beam
Horizontal cylinder The 2 nd section outrigger beam
Outrigger plate
WARNING: Extend the outriggers on a flat and rigid ground before lifting. If the
ground is soft or not flat, fill up the crosstie under the outrigger plate so as to make
the crane steady.
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5.2.1 Outrigger control box
Outrigger control box panel
The 5th outrigger telescoping Front right vertical cylinder
1 Power indicator lamp 2 3
switch telescoping switch
Front right horizontal Rear right horizontal cylinder Rear right vertical cylinder
4 cylinder telescoping switch
5 6
telescoping switch telescoping switch
Rear left vertical cylinder Rear left horizontal cylinder Front left horizontal cylinder
7 8 9
telescoping switch telescoping switch telescoping switch
Front left vertical cylinder
10 11 Accelerator switch
telescoping switch
WARNING: Boom must be placed on the boom bracket when extending/retracting
outriggers.
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1）Power indicator lamp
Switch on the power switch of outrigger control box in
driver’s cab, the power indicator lamp will light up.
2）The 5th outrigger telescoping switch
Push down this switch, the 5 th outrigger will extend,
Push up this switch, the 5th outrigger will retract.
After finishing such operation, the switch can return to
neutral position automatically.
3）Front right vertical cylinder telescoping switch
Push down this switch, front right vertical cylinder will
extend,
Push up this switch, front right vertical cylinder will retract.
After finishing such operation, the switch can return to
neutral position automatically.
4）Front right horizontal cylinder telescoping switch
Push up this switch, front right horizontal cylinder will
extend.
Push down this switch, front right horizontal cylinder will
retract.
After finishing such operation, the switch can return to
neutral position automatically.
5）Rear right horizontal cylinder telescoping switch
Push up this switch, rear right horizontal cylinder will
extend.
Push down this switch, rear right horizontal cylinder will
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retract.
After finishing such operation, the switch can return to
neutral position automatically.
6）Rear right vertical cylinder telescoping switch
Push down this switch, rear right vertical cylinder will
extend.
Push up this switch, rear right vertical cylinder will retract.
After finishing such operation, the switch can return to
neutral position automatically.
7）Rear left vertical cylinder telescoping switch
Push down this switch, rear left vertical cylinder will
extend.
Push up this switch, rear left vertical cylinder will retract.
After finishing such operation, the switch can return to
neutral position automatically.
8）Rear left horizontal cylinder telescoping switch
Push up this switch, rear left horizontal cylinder will extend.
Push down this switch, rear left horizontal cylinder will
retract.
After finishing such operation, the switch can return to
neutral position automatically.
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9）Front left horizontal cylinder telescoping switch
Push up this switch, front left horizontal cylinder will extend.
Push down this switch, front left horizontal cylinder will
retract.
After finishing such operation, the switch can return to
neutral position automatically.
10）Front left vertical cylinder telescoping switch
Push down this switch, front left vertical cylinder will extend.
Push up this switch, front left vertical cylinder will retract.
After finishing such operation, the switch can return to
neutral position automatically.
11）Accelerator switch
Push up this switch, chassis’s engine speed will speed up to
1500 r/m;
Push down this switch, chassis’s engine speed will return to
idle speed.
5.2.2 Extend the Outrigger
1）Pull out the inserting pin of outrigger beam.
2）Open the outrigger control box by the key, and operate on the outrigger control box penal.
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3）Push up accelerator switch, chassis’ engine speed will speed up to 1500r/m
4）Push front right, rear right, front left and rear left horizontal cylinders telescoping switch to
“extending” (up) position. Once the corresponding horizontal cylinders are full extended, release
the switch, it can return to neutral position automatically.
5）Push front right, rear right, front left and rear left vertical cylinders telescoping switch to
“extending” (down) position, the corresponding vertical cylinders will extend downwards to uplift
the complete vehicle. After the vertical cylinders extend to limit position, release the switch, it can
return to neutral position automatically.
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6）After vertical cylinders extended completely, check whether the frame plane is level by the
level gauge. If it is not, adjust it according to the following method.
For example：The right side of the crane is higher.
Push front right vertical cylinder telescoping switch and rear right vertical cylinder
telescoping switch to “retract” position. Observe the level gauge carefully at the same time.
Once the crane is leveled, release the switch at once, and then it will return to neutral position.
7）When the lifting performance in front area is the same as that in side & rear area, the 5th
outrigger should be used. Push down the 5th outrigger telescoping switch to “extending”
(down) position. After the 5th outrigger extended completely, release the switch, and then it
will return to neutral position automatically.
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5.2.3 Retract the Outrigger
WARNING: Only when the boom is placed on the boom bracket after operation,
can the outriggers be retracted. Moreover, the 5th outrigger should be retracted
firstly.
1） Push the 5th outrigger telescoping switch to “retracting” (up) position. After the 5th
outrigger retracted completely, release the switch, and then it will return to neutral position.
2）Retract the four vertical cylinders: Push the front right, rear right, front left and rear left
vertical cylinders telescoping switch to “retracting” (up) position, when the corresponding
vertical cylinders retracted completely, release the switch, and then it will return to neutral
position automatically.
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3）After all the vertical cylinders retracted, push the front right, rear right, front left and rear
left horizontal cylinders telescoping switch to “retracting”(down) position. When
corresponding horizontal cylinders retracted, release the switch, and then it will return to
neutral position automatically.
4）After all the horizontal cylinders retracted, insert the inserting pin of movable outriggers.
5.2.4 Install the outrigger plate
1）Outrigger plates, which are hung on outrigger cylinder and fixing pin, are fixed by locking
pin in traveling.
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Front vertical cylinder
Fixing pin of front outrigger
Locking pin
Outrigger plate
2）Remove the locking pin and place the outrigger plate under the outrigger vertical cylinder.
After insert the locking pin, the installation of the outrigger plate is finished.
Remove the Install front
fixing pin. outrigger well.
3）The installation process of rear outrigger plates is the same as that of front outrigger plates. Pay
attention to the position of fixing pin.
Fixing pin
Rear vertical cylinder
4）Deposit the outrigger plate in the reverse order.
CAUTION: Only after outrigger cylinders retracted completely, can the
above-mentioned operation carry out.
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CAUTION:
a. When outriggers extended/retracted,ensure there’s enough space around to
avoid injuring the personnel or damaging the crane and the other articles.
b. Must install the outrigger plate before operating the outriggers.
c. It is forbidden to extend vertical cylinders before all the outrigger horizontal
cylinders extended completely. Do not operate the outrigger horizontal cylinder
until the outrigger plate is totally away from the ground.
d. Ensure that all the outrigger plates contact with the ground except the outrigger
plate of the 5th outrigger.
e. The 5th outrigger can only extend to position by 1to 5mm above the ground. It is
not permitted that two front outriggers are loose due to excessive extending of the
5th outrigger.
f. Ensure that all tires are lifted away from the ground before lifting.
g. Prohibit operating outrigger switches during lifting.
h. Check whether the level gauge is in accordance with the plane of the chassis. If
it is not, adjust the nut below the level gauge to level it.
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