COLUMN JIB CRANE - INSTRUCTIONS FOR USE -

DONATI SOLLEVAMENTI S.r.l. - Via Roma, 55 - 21020 Daverio (VA) - Tel. 0332 942611 - Fax. 0332 948597
Every three months, verify the efficiency of the thrust block and its pinion:
• Use the push-button panel to activate the arm’s “forward and reverse” movements, check
that the thrust block and its pinion run smoothly, silently and regularly.
• If necessary, in relation to the mode of operation and/or service location (e.g. intense
operation, operation outdoors or under extreme heat, etc.), when conducting annual
inspections, disassemble the gearmotor and verify the wear and lubrication of the teeth on
the thrust block and reducer pinion. Lubricate with grease if necessary.
Replace the pinion on the gearmotor and/or thrust block if the following
occurs:
• Strong variations in noise emissions from the gearmotor, and thrust block
squeaking.
• Excessive friction on the thrust block and/or strong vibrations from the
gearmotor.
• Difficult and/or irregular rotation of the arm resulting in “snaps” and/or
"bursts".
Every three months, verify the efficiency of the rotation motor brake:
59
TECNICO
DONATI
DONATI
SERVICE
• Check the stability of the arm on empty, and that of the mass being handled at full load, controlling
that braking and stopping spaces for the arm in rotation are comprised between 50 and 100 cm,
estimated with respect to the tip of the arm.
• Where necessary, adjust the crane’s brake, as outlined under section 6.4.1 “Adjusting the rotation
brake on the crane arm,” at page 62
Replace the brake gasket when the arm encounters instability, even
after having adjusted the brake.
• IN THE CASE OF A MALFUNCTION:
• It is forbidden to intervene on the jib crane’s rotation arm with corrective
maintenance.
• Any extraordinary maintenance operation on the crane’s rotation
arm brake must be conducted by DONATI SOLLEVAMENTI S.r.l.
technical service personnel or by technicians authorized by the
manufacturer
On a monthly basis, verify the efficiency of the crane’s rotation reducer:
TECNICO
DONATI
DONATI
SERVICE
• Check that the noise emitted from the reducer does not vary in intensity. Vibrations or
excessive noise reflect wear on the teeth, or a worn out bushing.
• Make certain there are no lubrication leaks, and check the lubricator level at least every four
years.
WARNING:
• The reducers are lubricated for life and do not require any maintenance,
nor, with the exception of leaks, any filling of lubricant.
IN THE CASE OF A MALFUNCTION:
• It is forbidden to intervene on the rotation reducer with corrective
maintenance.
• Any extraordinary maintenance operation on the rotation reducer
must be conducted by DONATI SOLLEVAMENTI S.r.l. technical
service personnel or by technicians authorized by the manufacturer
TECNICO
DONATI
DONATI
SERVICE