DS-520 Líza
DS-520H Líza
18
6.5 Tightening pulley wire and drive diagnostics.
In order to guarantee low operating forces on levers which control drive switching, it is
advisable to lubricate wires in Bowden cables at least 2x during the season with some oil
available in atomiser (e.g. SILKAL, MD Spray, WD40). Correct functioning of the machine
also requires correct setting of drive steering elements. Should the adjustment bolt be fully
screwed out and the V-belt needs to be tightened, wire spring can be hooked into the front
hole on the tightening pulley arm.
6.6 Driving problems diagnostics.
Excessive belt pull-out
(see Fig. 6)
Replace the belt with a new one
Slippage of mowing
disk drive
Tightening pulley does not
tighten the belt properly
Adjust the tightening pulley by means of
adjustment bolt (see Fig. 7)
Nuts are to be tightened by two spanners No. 10 or No. 9. Should there be no more step
on the adjustment bolt, spring on the wire can be hooked in the pulley arm hole for return
spring.
Problem
Reason
Remedial action
Mowing disk does not
turn
Tightening pulley does not
tighten the belt properly
Adjust the tightening pulley by means of
adjustment bolt (see Fig. 7)
Cable fallen out from tightening
pulley lever
Put the cable back
V-belt fallen behind tightening
pulley or out of belt pulley
Put the belt back
Torn V-belt
Replace the belt with a new one
Pulley Bowden and adjustment
bolt
Figure 7: Bowden cable and adjustment bolt.
Summary of Contents for Liza DS-520
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Page 31: ...DS 520 L za DS 520H L za 31 Text and illustration c 2002 VARI a s Publication No VL 064 2002...
