COMMISSIONING
29
4 COMMISSIONING
This se
ction of the manual explains the preparations and special safety precautions to be followed
before starting to work.
4.1 SAFETY INSTRUCTIONS FOR THE CRANE’S COMMISSIONING
* The KESLA crane is designed for loading with a grapple and it can be used
only by a person familiar with its use.
* Operation with hooks is not allowed!
* Acquaint yourself with the crane
’s structure, operation, control devices and use instructions be-
fore its commi
ssioning.
* It is forbidd
en to use the crane unless the use and safety instructions have been studied.
* Follow the
instruction and warning texts attached to the crane in order to avoid unnecessa
ry
da
m
ages.
* Make sure that the agg
regate is sufficiently stable in all circum
stances.
* Check that the crane h
as been properly mounted (see “Crane mounting”).
* When starting the vehicle it must not be connected to hydraulic pressure.
* Use great caution whe
n attaching or detaching the crane from
a vehicle.
- the surface
must be sufficiently strong and steady
- rotation of
the stabilizer leg must be prevented with a locking pin (against tipping ha
zard)!
- chain locking of the re
ar mounting bracket to the vehicle
* Always connect the return hose before the pressure hoses
. Make sure that it has been con-
nected; otherwise the control valve may become damaged.
* After installation there could be air in the hydraulic system which causes sudden and uncontrolla-
ble movements. Remove the air by brining all the cylinders carefully to the extreme positions 4-5
times.
* Check before switching on the pressure that all the crane’s control levers are in the middle posi-
tion and that they also return to the middle position.
4.2 PREPARATIONS FOR CRANE COMMISSIONING
* Truck-mounted timber handling KESLA cranes will be delivered from the factory as complete
units with service valves, pressure filters and hydraulic equipment. The grapple, rotator, etc. will be
delivered as accessories.
* The carrier block is made of timber that can be reused or disposed by burning.
* For handling the crane a hoisting apparatus is required with hoisting capacity of at least 39 kN
(4.000 kg). A forklift can be used for lifting from below the carrier block (NB! tip-over hazard).
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