V-Belts; Standard 3-Point Machine; Optional Front Version Machine - Perfect BG2/BK2-105 Manuel D'instruction

body).
*** Collect the old oil, e.g. in a bucket, for environment friendly disposal. ***
Refit the oil drain-plug and pour 1 litre (± 1/2 gallon) diesel-oil through the breather hole in the housings. Clean the
internal gearbox (by washing with the diesel oil) by turning the V-belt pulley a few times by hand.
Then drain and collect the dirty diesel-oil and refill the gearbox to the required oil-level and refit the breather.
Fill up only to the proper level and use always the same oil.
Recommended is gear-oil EP-320 or SG-150(Front version) in extremely warm climates.
*** Note: Allow the oil enough time to sink through the bearings.
Wipe off excess oil to prevent it reaching the V-belts as oil and grease cause unnecessary slipping and extra wear.
On the Type BG2/BK2-3-point replenish or replace the correct oil, if possible Mobil EP 320 or an equivalent
oil.
Viscosity base oil at 40°C 320 Cst.
Temperature range -24°C tot 240°C
Good pressure properties.
On the Type BG2/BK2-Front replenish or replace the correct oil, if possible SG-150 or an equivalent oil.
Viscosity base oil at 40°C 150 Cst.
Temperature range -35°C tot 240°C
DIN 51517-3 : CLP PG
ISO 12925-1 CKT
Good pressure properties

1.8 V-belts

A correct V-belt tension is very important and this should be checked after the first 2, 8 and 16 hours of service and
further on at regular times (at least every 50 hours of service). A general rule for the determination of the correct belt
tension is: properly adjusted belts cannot be twisted more than a quarter of a longitudinally turn (by thumb and
forefinger).
1.8.1

Standard 3-point machine

The (side) V-belts are kept in tension by means of a spring loaded jockey pulley. The
"pressure" of this jockey pulley can be adjusted by the chain of the spring and the hook on
the frame.
1.8.2

Optional Front version machine

The "middle" V-belts of the machine are tensioned through a bolt(red arrow). First,
loosen the 4 bolts (green arrow) on the gearbox and as follow adjust the bolt until the
correct tension is reached. Finally tighten the bolts of the gearbox.
When changing the V-belts, is it necessary to loosen the 4 bolts (green arrow) on the
gearbox so that it can move. Then move the gearbox with the bolt (red arrow) so that
the V-belts can be disconnect. Replace the V-belts, adjust the bolt until the correct
tension is reached. Finally tighten the bolts of the gearbox.
Remark: When new V-belts are mounted, always make a test run and check the V-belt tension again!!!
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