Commissioning - Farmi Forest Corporation CR46 Operation, Maintenance And Spare Parts Manual

CONNECTION TO THE HYDRAULIC SYSTEM
Before connecting the crane to the tractor's hydraulic
system, make sure that the oils are compatible. The cra-
ne has been tested using ISO VG46S oil that meets the
API SE, CD, and API GL-4 requirements.
We recommend connecting the pressure hose to the
single-acting hydraulic outlet and the return hose to
the tank via the return filter. The filter's intended flow
rate is 80 l/min and the filtering density 25 µm abs.
The crane can also be connected to the double-acting
hydraulics outlet. If this is done, make sure that the
lever of the double-acting valve controlling the flow is
in the right position so that the pressure is directed to
the pressure connection of the crane's control valve.
Check the operation of the double-acting outlet in the
vehicle's operating manual.

COMMISSIONING

Before using the crane, familiari-
ze yourself with the operating
!
and safety instructions.
CAUTION!
INSPECTIONS BEFORE TESTING
Do not pressurize the hydraulic system before
connecting the control valve's 1/2" quick couplings to
the vehicle's hydraulic system.
Connect the pressure hose (P) to the valve as indicated
by the arrow and the return hose (T) to the vehicle as
indicated by the arrow.
Do not pressurize the control
valve's return line (T) – this could
!
cause the valve to break.
Ensure that the 1/2" quick coup-
ling are locked.
CAUTION!
CR46
The person testing the crane must be qualified to
use it.
1. Read the installation inspection report. If no
installation inspection has been performed, do not
use the crane.
2. Ensure that the control valve's pressure line (P)
has been connected properly and that the return
(T) is unobstructed.
3. Check the hydraulic oil level.
4. Familiarize yourself with the control valve's
functions.
5. Ensure that the hoses can move freely. Remove
any transport supports and ties.
6. Ensure that there are no people or obstacles in
the operating area. The danger zone is 20 m.
7. The crane must be tested on a level, firm base.
TESTING
1. Ensure that the control valve's control levers are in
the middle position.
2. Connect the oil flow to the crane. Let oil flow
through the valve for a while.
3. Lower the support legs.
4. Carefully drive the crane movements one by one
to their extreme positions and repeat this until
the movements are smooth.
5. After testing the crane, inspect the joints and
repair any leaks.
6. Check the mounting bolts of the crane and the
fitting stand, and tighten them if necessary.
7. Check the hydraulic oil level, and top up the oil if
necessary.
!
CAUTION!
!
DANGER!
15
Be careful when bleeding air
from the system. If you drive a
cylinder to its extreme position
at full force, the air pressure in
the cylinder will damage the
seals.
Be extremely careful when there
is air in the cylinders.