John Deere SB1107 Doll User Manual


 
SERVICE
32
p/n GH 19502091
Fig. 59
Fig. 58
Replacement of bar holding removable tooth
With the implement resting on the ground, raise the mowing
bar and secure it with the hooking tie rod.
Unscrew all the tooth fastening screws (Fig. 58).
Remove all the teeth (Fig. 59).
Remove the expansion pin and slide out the bar.
Insert the new tooth-holding bar and lock it in place with
the expansion pin.
Reposition the teeth and fasten them with the screws.
Replacement of removable tooth
With the implement resting on the ground, raise the mowing
bar and secure it with the hooking tie rod.
Unscrew the screws of the tooth to be replaced (Fig. 58).
Slide out the tooth (Fig. 59), put in the new one and lock it
in place with the screws. For this it would be advisable to
use a torque wrench, respecting the values of 30 Nm.
Replacement of belts
Unscrew the screws (A Fig. 60) and remove the protective
casing.
Loosen the belt tensioner completely (B, Fig. 60).
Replace the worn belts with new ones.
Put these at the optimum tension using the belt tensioner.
Belt play should not exceed 1 inch.
Put the protective casing back in position and fix it in place
with the screws (A, Fig. 60).
Replacement of pulleys
Notes for replacement of pulleys, if necessary.
• Unscrew the screws (M, Fig. 60) and remove the
protective casing.
Loosen the belt tensioner completely (N, Fig. 60).
Remove the belts.
To replace the driving pulley (O, Fig. 61), turn it
counterclockwise; viceversa, turn the driven pulley (P, Fig.
61) clockwise.
Fig. 61
Fig. 60
M
N
O
P
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
the implement for work. All assembly operations
must be carried out on a work bench.