
QAY220 All Terrain Crane Operation Manual
10-7
Inspection item
Crane controls
instruments
safety devices
Outrigger
system
Over-wind cutout device (Height Limiter):
1. Operation.
2. Damage of wire rope for weight.
3. Installation.
4. Operation of solenoid valve.
Operator
’
s Cab:
1. Tightness of nuts and bolts.
2. Function of window and door locks.
3. Connection to turntable.
4. Tilting cylinder.
Control levers and pedals:
1. Function.
2. Play.
Work lamp:
1. Lightness.
2. Damage.
3. Installation.
Lamp on boom head:
1. Lightness.
2. Installation.
Anemometer
1. Installation.
2. Operation.
Jack:
1. Retraction during load lifting.
2. Extension during road travel.
3. Leakage.
4. Function of pilot check valve.
5. Tightness of piping joints.
6. Noise and vibration.
7. Deformation and damage of outrigger floats.
Outrigger box, outrigger beam, extension cylinder:
1. Damage and deformation.
2. Tightness of beam lock pins and bosses.
3. Deformation and cracks of bracket.
4. Noise and vibration.
Periodic inspections
Chapter 10
Summary of Contents for QAY220
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