Lowering valve jamming open due to stuck debris or solenoid failure
Operator
LO:
1
FE:
4
DPH:
1
NP:
1
Risk Factor:
4
If the lowering valve is physically jammed open, the forks will descend to the
ground at a controlled rate and then stop (even if the Emergency Stop is
pressed). It will not be possible to lift the forks off the ground until the fault is
repaired. No other hazardous failure will result.
Other
persons
LO:
1
FE:
2.5 DPH:
1
NP:
1
Risk Factor:
2.5
Other persons will less frequently be in proximity to the stacker.
Control
measures
Operators are responsible to obey instructions and warnings regarding keeping
themselves and others away from the area beneath the forks at all times.
The hydraulic fluid should be drained and replaced on an annual basis.
The Quikstak must be regularly maintained, and any faults promptly repaired.
Comments
Lowering valve jamming open due to control system failure
Operator
LO:
0.5
FE:
4
DPH:
1
NP:
1
Risk Factor:
2
If the lowering valve is jammed open due to a control circuit failure, the forks will
descend to the ground at a controlled rate and then stop. No other hazardous
failure will result.
Depressing the Emergency Stop will immediately close the lowering valve and
stop the forks from descending (regardless of other control system failures).
Other
persons
LO:
0.5
FE:
2.5 DPH:
1
NP:
1
Risk Factor:
1.25
Other persons will less frequently be in proximity to the stacker.
Control
measures
Operators are responsible to obey instructions and warnings regarding keeping
themselves and others away from the area beneath the forks at all times.
The Quikstak must be regularly maintained, and any faults promptly repaired.
Comments
Application-specific hazard:
Operator
LO:
FE:
DPH:
NP:
Risk Factor:
Other
persons
LO:
FE:
DPH:
NP:
Risk Factor:
Control
measures
Comments
Application-specific hazard:
Operator
LO:
FE:
DPH:
NP:
Risk Factor:
Other
persons
LO:
FE:
DPH:
NP:
Risk Factor:
Control
measures
Comments
Summary of Contents for QUIKSTAK QS10MM
Page 1: ...User Manual Quikstak QS10MM Original Instructions English v52 0 April 2022 USER MANUAL...
Page 3: ...User Manual Quikstak QS10MM Original Instructions English v52 0 April 2022 Page 2...
Page 26: ...4 4 9 Wiring diagram C O N TR O L L ER C U R TIS1212...
Page 36: ...Date Name Location Checks complete Maintenance carried out Parts used...
