Farmi Forest Corporation CR40, Operation, Maintenance And Spare Parts Manual

Page: 17 / 52

CR40
17
The lowest recommended operating temperature for
the crane is -25
o
C.
Note that the hydraulic seals, hoses, and steel structu-
res are prone to damage at low temperatures. When
startingwork at cold temperatures, first let the oil flow
freely through the valve for a couple of minutes.
The maximum operating temperature for hydraulic oil
is +75
o
C.
Use the support legs only to
provide additional support for
the vehicle.
When working on an inclined surface, do not load the
crane with the full lifting torque, and be extremely ca-
reful.
When loading from uphill, note that the slewing mo-
vement may not be able to support the load but the
pressure relief valves can be overloaded and the load
can move down, causing a danger of the crane falling
over.
Never move the boom to its
extreme position at full speed!
Be careful when working near
electric cables.
Observe the safe distances.
When transferring the crane, support it against the
trailer body or load.
DETACHING THE CRANE
Ensure that the ground under the crane is sufficiently
hard and level.
Ensure that there are no extra people around and that
no danger will be caused to others where the crane
is to be stored. Pay special attention to the storage
location of the control valve, ensuring that, e.g., it is
out of the reach of children.
Always switch the pump off
before removing the quick
coupling between the crane
and the vehicle.
When detaching the crane from
the vehicle, make sure that there
are no people in the immediate
vicinity.
1. Lower the support legs to the desired height.
2. Lower the booms as shown in Fig. 1.
3. Lower the crane using a hoist.
4. Make sure that the crane cannot lean over. Fig. 1.
5. Detach the crane from the vehicle.
6. Detach and cover the control valve’s quick
couplings.
STORAGE INSTRUCTIONS
1. Clean the crane and, if necessary, touch up any
points where paint has peeled off.
2. Lubricate the crane thoroughly (see Lubricating
Instructions).
3. Release the pressure from the cylinders.
4. Protect the cylinder piston rods and exposed
parts of the control valve with grease.
5. Store the crane in a sheltered area, away from
direct contact with the ground.
6. When you start using the crane again, remove the
protective grease from the cylinder piston rods
and the control valve.
CAUTION!
!
WARNING!
!
!
DANGER!
CAUTION!
!
CAUTION!
!
Fig 1. Lowering the booms