Countax D50 - Manual (Page 15)

Page 15
Collector - Drive Belts
REPLACING AND TENSIONING PTO DRIVE
BELT CONNECTION
It is important that the belt from PTO to collector (Part No.
22950100) is crossed over in the correct direction (fig 1) before
being fitted over the collector pulley. The easiest way to do this is
to place the belt on the PTO pulley and then stand behind the
tractor holding the belt with two hands. Turn the right hand
above the left and fit the belt on to the collector pulley.
To check that you have this right - start your tractor and engage
the PTO lever and check that the brush is revolving against the
forward direction of the tractor (see page 14 fig 1).
CORRECT BELT TENSION
To check tension:
1. Lower the collector to the operating position and check the
tension using a spring balance.
2. Select a place on the belt midway between the PTO pulley and
the collector pulley.
3. Pull and measure the deflection using a ruler (fig 2). It should
be 19mm at 2Kgs (4-5lbs).
If the tension needs to be adjusted – first:
1. Relocate the Collector from the tractor.
2. Locate the adjustment holes on the Locking Arms. These holes
take the nuts and bolts on which the locking arm hinges.
3. To increase tension on the belt undo each nut and bolt and
relocate them one or more holes forward (towards the tractor).
To slacken move the bolts back, ideally the bolts should be in
the same hole on each locking arm, however fine adjustment
to get the right tension may only permit you to move one bolt
– this is OK but there should not be more than one hole
difference from side to side.
4. Replace the collector on the tractor and re-check the belt
tension.
CHECKING, TENSIONING AND REPLACING
SIDE DRIVE BELT (fig 3)
1. First remove collector from the tractor (page 13).
2. To remove the plastic cover, remove the two nuts and bolts (A)
using a 1/2" spanner and socket.
3. Using a 1/2" spanner and socket slacken the nut and bolt (B)
holding the tension pulley and slide the pulley out of the way.
4. Remove the belt and fit the Countax replacement (Dayco
Super II A38 Part No. 229503000).
5. Tension the belt by sliding back and securing the belt
tensioner. The tension is not critical but the belt must not be
too tight. The ideal is 13mm (1/2") deflection at 2Kgs (4/5lbs)
pull – use a spring balance and ruler or tape to check.
6. Make sure that the rectangular cover plate fits over the
adjustment slot – failure to do this will allow cuttings and grit
to accumulate and damage the pulleys and belt assembly.
7. Replace the plastic cover.
Kg
cm
A
B
fig 1
fig 2
fig 3
E Please note:
Unless caused by our negligence, Countax
cannot accept any liability for any damage to
persons or property attributable to failure to
comply with the instructions in this manual. To
be absolutely sure that your warranty terms are
not breached, service work should only be
carried out by a Countax dealer.
19mm deflection 2kgs push or pull
To Slacken To Tighten
Check tension using
a spring balance and
ruler or tape
Side
Drive Belt
Locking
Arm
19mm