LNS Express 220 S2, Instruction Manual

Page: 56 / 119

CHAPTER 7: GENERAL DESCRIPTION 53
EXPRESS 220 S2/320 S2
3.3. Chain adjustment
It is possible that after a certain amount of use, the chain
(A)
needs to be tightened.
Should the chain tension be adjusted, make sure that while adjusting, the chain remains
under tension in order not to lose the reference point. If the chain and the notched toothed
wheel are misaligned, the motor will lose its reference points. If this occurs, please contact
technical support.
Procedure:
·
Switch the bar feed system to
STOP
mode on the remote control.
·
Open the main access cover.
·
On the front rest system, loosen the lock nut (
D
) of the screw (
C
).
·
Loosen gently the big locking nut (
E
) of the gearwheel (
B
).
·
With a torque wrench, apply a torque of
0,8 Nm
on the screw (
C
).
·
When done, tighten the big locking nut (
E
) of the gearwheel (
B
).
·
Lock the system with the lock nut (
D
) of the screw (
C
).
A
B
C
D
E