Vari BDR-595 E EuroAdela Instructions For Use Manual - page 21
BDR-595 E EuroAdela
21
a) Drain petrol from the engine tank. Dismount the accelerator lever (2x spanner No. 8)
from the handlebars. Bowden cable should never be dismounted from the control on the
engine!
b) Unscrew three safety nuts (spanner No. 13) on the engine flange and pull the engine out
from the machine frame upwards. Never use force to pull the engine out from the frame!
,
Warning: It is not advised to dismount the engine together with the underlying
support plate if not necessary. Should the disassembly of the engine support plate or
gearbox from the machine frame occur, axial alignment of gearbox shafts and
engine must be ensured at reverse assembly. It is therefore adviceable to entrust the
operation to an authorized service shop with the original and manufacturer-
approved centring fixture.
,
Never put the engine on the side. Oil might get into the exhaust or into the air
cleaner. The best engine seating is with the lower flange dwelling on two lintels
which are at least 7 cm high.
c) Dismount the apron with the frame and upper casing (flat side spanners No. 8, 10, 13).
Dismount the pillar in front of the driven belt pulley (see Fig. 5.3) (spanner No. 10). Take
the old V-belt off the both belt pulleys and replace it with a new one. Original V-belt
marking is OPTIBELT X13x1300Ld 6T6K (Ld = calculated length). It is also possible
to use an equivalent V-belt made by other manufacturers at a size of A13x1270 Li
(Li=internal length) or ½“ x 52“La (La=external length). However, the belt must be
made without rubber on sides! Only this belt model will guarantee that the knife drive
start is continuous at engaging the clutch.
,
Should a different belt model be used, the machine manufacturer does not bear any
liability for correct and full functioning of the gear!
d) Put the engine back in its place. Pins in the driven part of the clutch slid on the gearbox
must fall into holes in the driven pulley. Bolt the engine with three safety nuts with flat
washers and screw the accelerator lever back onto the handlebars.
e) Install the V-belt into the groove in the belt pulley on the engine.
f) Check the operation of the tightening pulley and adjustment of guide lamination. With
the lever on the right handlebar grip being completely pressed down, the pulley must
ensure a sufficient belt tension (spring on the cable being extended by about 10 mm as
compared with the normal condition). Possible corrections are to be made by means of
the adjustment bolt No. 2 (see Fig. 8). With the lever switched off, the pulley must be
inclined away from the longitudinal machine axis by 0 - 5° (at maximum) = with the belt
convex side being approx. 1.5 – 2.0 cm from the bottom of the tightening pulley (see Fig.
7) and the cable in the Bowden of the tension pulley must exhibit no slackness. In the
case that the adjustment bolt is completely screwed out and it is necessary to tighten the
V-belt, the spring on the cable can be hooked into the front hole on the arm of the
tightening pulley (see Fig. 7 bottom, note: this connection can be used already from the
manufacturer) and the belt tension can be adjusted once again. Guide lamination on the
right side of the machine must be parallel to the belt and at a maximum distance of 1 – 2
mm from the belt convex side.
g) Mount back the post in front of the driven belt pulley, the upper plastic casing and the
apron with the frame.