Technical data

22.5 After every 100 working hours or more frequently in
case of more intensive utilisation
WITH RACK
Periodically grease the points indicated on the crane (fig.
34) (and on the hydraulic jib, when fitted, fig. 35) paying
particular attention to the points not easily detected. For the
sliding sections of the outrigger supports and of the exten-
sion booms guide shoes made from a special material have
been fitted: to ease their movement it is recommended to
smear a light film of grease on them, taking care that the
surfaces of the extension booms are free from impurities
such as sand etc. Top up using hydraulic oil with the same
characteristics as those indicated in the table at paragraph
23.
WITH SLEW RING
Grease the slew gear to prevent friction during rotation and
to ensure that it is stable by preventing water (corrosion
protection) and contaminants from entering the bearings.
For a better internal distribution
of the grease it is advisable to
rotate the crane and grease it in
such a way as to see grease at
the seals. Top up using hydrau-
lic oil with the same characte-
ristics as those indicated in the
table at paragraph 23. Grease
the winch cable (if fitted) after
having first cleaned the cable of
any encrustation (grease mixed
with sand, dust, dirt etc.) The
lubricant used must guarantee
a good level of penetration in
order to lubricate both the inside
and the outside of the cable. Top
up using hydraulic oil with the
same characteristics as those
indicated in the table at para-
graph 23.
22.6 After every 500 working hours or after every 6
working months
Check the tightening torque:
- of the fixing rods of the crane; consult the following table in order to find it’s
value according to the bolt diameter:
Table of the tightening torques of the fixing rods of the crane on the vehicle
From “C0404 Kit for crane fixing”.
D. Fixing Tightening
rods torque = Nm
M22x1,5 300
M24x2,0 400
M27x2,0 600
M30x2,0 471
M33x2,0 1200
M39x3,0 1800
22.5
MAINTENANCE
INSTRUCTIONS
GRU FASSI
fig. 35
fig. 34
WITH RACK
fig. 35a
fig. 34a
WITH SLEW RING