John Deere SB1107 Doll User Manual


 
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)