Tightening Pulleys Adjustment; V-Belt Exchange; Brake Function Control And Adjustment; Service Intervals - Vari DS-521D Bedienungsanleitung

2.5.4.1 Tightening pulleys adjustment

 Seek authorised service in case you lack appropriate manual skills.
First: Dismantle the top plastic cover, so that you can see both belts (Pict.11) securing the forward movement of the machine. Try again to overcome
terrain irregularities and visually check belt slipping.
1) If the belt slipping occurs on the right side of the cutter, tighten it by unscrewing the bolt (3) at the cable
the arrow (away from the frame) for approximately 1mm, and repeat the visual check as in a). Continue tightening until condition a) is met and
at the same time the cutter start moving forward while wheel drive clutch lever is loose. If the bolt (3) cannot be unscrewed any further, screw
it in completely against the direction of the arrow and hook the spring at the end of the cable into a further opening in the pulley arm. Repeat
tightening the belt until condition a) is met.
2) If there is belt slipping between the engine and gearbox, dtighten it with the tightening pulley (4). Loosen the pulley by loosening the
nut placed below the pulley. Use an appropriate tool (e.g. steel hook) to tighten the pulley in the direction of the arrow and tighten the nut while
the pulley is stretched. Then check the right function of the wheel drive.
In case the tightening pulleys cannot be adjusted to prevent belt slipping, it is necessary to exchange the belt.
Second: Dismount the front plastic cover so that you can see the belt and disc drive pulley (Pict.12). (Marking (1) a (2) in pictures 11 and 12 are the
same and belong to the same cable.)
1) Tighten the belt by unscrewing the bolt
repeat the check according to b). Continue tightening until condition b) is met and at the same time the belt transmission grip
wheel drive clutch lever is loose. If the bolt (1) cannot be unscrewed any further, screw it in completely against the direction of the arrow and
hook the spring at the end of the cable into a further opening in the pulley arm. Repeat tightening the belt until condition b) is met.

Check the automatic brake function after every adjustment!
2.5.4.1.1

V-belt exchange

Exchange the V-belt with a new one
the tightening pulleys. Exact instructions for belt exchange are not included here, as their contents exceed the limitations of this manual. When exchanging
the belt, follow Pict.13. Follow belt track around all guide elements!

Seek authorised service in case you lack appropriate manual skills.

2.5.4.2 Brake function control and adjustment

Check the automatic brake function after every 10 hours of use. (Current control can be done during operation.) Every time you release the
disk drive clutch lever, the automatic brake must stop the disc within 5 sec.
 Do not continue working with the cutter unless you remove the automatic brake defect.
 Seek authorised service in case you lack appropriate manual skills.
In case the brake does not stop the cutting disc in the given time span, it is necessary to adjust the brake cable (2) Pict.11 a 12.
which tightens the brake cable (2) to the cutter frame Pict.11, needs to be screwed in against the direction of the arrow (towards the frame), so that the
axial clearance of the brake cable in the adjusting screw is 1 mm. Check the automatic brake function. If complete tightening the screw (2) does not offer
adequate brake effect, tighten the adjusting screw of the brake cable on the handlebars so that the axial clearance of the brake cable in the adjusting screw
is 1 mm. Check the automatic brake function

If, after the adjustment

2.5.5 Service intervals

Activity
Engine oil level check
Cleaning the engine air filter
Washing
Removal of dirt and cut stand remains
Blades sharpening
Check the blades and their placing
Cutting disk tightening check
Bolted connections tightening check
Lubrications
V-belts check
Tab. 6: Service intervals
60 You may also use the bolt attached to handlebar rail on the other side of the cable. In this case, screw the bolt in the direction away from the rail.
61 You may also use the bolt attached to handlebar rail on the other side of the cable. In this case, screw the bolt in the direction away from the rail.
62 Manifests itself by chattering and irregular belt grip.
63 Use V-belts recommended by the manufacturer only. Proper transmission function cannot be guaranteed when using other V-belts.
64 You may follow opposit instructions. First tighten the screw of the brake cable (towards handebar rail) on the handlebars so that the axial clearance in the adjusting screw
is 1 mm. .
65 The condition of the axial clearance of the brake cable in the adjusting screw is met.
61 (1) in Pict.11 for approximately 1 mm in the direction of the arrow (away from the frame) and
63 every time you see cracks or breaks in its surface, or when it is so deteriorated that it cannot be tightened with
64 .
65
, the brake does not work properly, contact an authorised service center.
Before cutting
yes
check
-
-
-
yes
yes
yes
condition check
-
In season
following the engine user manual
every 10 hours
2x
after each cutting
according to need
immediate exchange if damaged
-
every 5 hours
Tab. 5
every 20 hours
DS-521D
terminal in the direction of
60
62
.
Adjusting screw,
Before storage
yes
yes
yes
yes
yes
yes
yes
yes
Tab. 5
yes
stops while
23