FARMI 4571 / FARMI 4581
17
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.
MAINTENANCE
•
Maintenance work must be carried out regularly
to ensure safe and trouble-free operation.
•
Always use the appropriate tools.
•
Determine the location of the defect.
•
Keep the disassembled sections, removed parts,
and the repair area protected from dirt.
•
Clean the parts using kerosene, never fuel oil.
•
Valve adjustments and repairs are to be performed
by dedicated service personnel.
SLEWING DEVICE
•
See maintenance table.
BOOMS
•
Keep the axial clearance in the joints as small as
possible. Do not over-tighten.
REPLACING BEARINGS
•
When installing bearing sleeves, use an
appropriate drift.
•
Make sure that the new bearing’s grease hole
meets the nipple.
•
If the bearings have grease pockets, fill these with
Vaseline.
REPLACING THE HYDRAULIC CYLINDER SEALS
Replace all hydraulic cylinder seals at the same time.
1. The piston rod guide is attached with a thread.
Unscrew the guide using a large pipe wrench or
create a special tool for the purpose, making use
of the drill holes in the piston rod guide.
2. Pull out the piston rod and its guide.
3. Detach the piston from the rod.
4. Clean the seal grooves and install the new seals.
Be careful not to break the seals when installing
them!
5. Install the piston on the rod and tighten to
240 Nm.
6. Lubricate the new seals with hydraulic oil before
pushing the piston into the cylinder sleeve
.
Fig. 3.Detaching the cylinder guide