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COMMISSIONING
Before using the crane, familiarize
yourself with the operating and
!
safety instructions.
CAUTION!
INSPECTIONS BEFORE TESTING
Do not pressurize the hydraulic system before con-
necting 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!
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.
CR40
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!
PRACTICE RUNS
•
Drive through every movement with an
unloaded crane, paying attention to the positions
in which the crane can hit obstacles.
•
Move the control levers smoothly and steadily,
avoiding quick and jerky movements.
•
Learn to use several functions simultaneously.
This enables smooth, precise operation.
•
Start off at a lowengine speed in order to avoid
sudden movements.
•
When you have become accustomed to the
crane's movements, choose the appropriate
engine speed so that operation is efficient but
you still have the movements under control.
16
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.
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