27
p/n GH 19502091
SERVICE MACHINE SAFETY
ATTENTION
It is absolutely essential to disengage the tractor pto, lower the mowing machine, switch
off the tractor, ensure that this is at a complete standstill and remove the key before
servicing, adjusting or preparing the implement for work. All assembly operations must
be carried out on a work bench.
• Always keep oils and greases well away from children’s reach.
• Always thoroughly read the warnings and precautions indicated on the containers.
• Avoid contact with the skin.
• Always thoroughly and fully wash after use.
• The utilized oils should be treated in compliance with the current laws in force.
• Do not proceed with maintenance and cleaning if the power take-off has not been disconnected first,
the engine power off, the hand brake pulled and the tractor blocked with a wooden block or stone of the
right size under the wheels.
• Periodically check that the bolts and nuts are tight, and if necessary tighten them again. For this it
would be advisable to use a torque wrench, respecting the values of 52 Nm for M10 bolts, resistance
class 8.8, and 143 Nm for M14 bolts resistance class 8.8 (Table 1: Bolts tightening torques).
• During assembling, maintenance, cleaning, fitting, etc., with the mowing machine raised, place adequate
supports under the equipment as a precaution.
• The spare parts must correspond to the manufacturer’s specifications. Use only original spares.
Bolts tightening torques - settings given in Nm (lb-ft)
Fine pitch screws CLASS
6.6 8.8 10.9 12.9
M8 x 1 15 (11) 26 (19) 36 (26.5) 44 (32.5)
M10 x 1.25 30 (22) 52 (38) 74 (54) 88 (65)
M12 x 1.25 51 (37.5) 91 (67) 127 (94) 153 (113)
M14 x 1.5 81 (60) 143 (105) 201 (148) 241 (178)
M16 x 1.5 120 (88) 214 (158) 301 (222) 361 (266)
M18 x 1.5 173 (127) 308 (227) 433 (319) 520 (384)
M20 x 1.5 242 (178) 431 (318) 606 (447) 727 (536)
M22 x 1.5 321 (237) 571 (421) 803 (592) 964 (711)
M24 x 2 411 (303) 731 (539) 1028 (758) 1234 (910)
M27 x 2 601 (443) 1070 (790) 1504 (1110) 1806 (1333)
M30 x 2 832 (614) 1480 (1090) 2081 (1535) 2498 (1843)
(metric)
(Table 1)