user and maintenance
instruction manual BALLAST series
3-P) To install the .../P version Rotary blades vacuum pump, attach a driven pulley to the shaft and fix it with the special screw
located on the front of the shaft. The driven pulley may be fitted directly on the cylindrical shaft if the radial load is brought close to
the bearing. Never transfer axial loads. Then connect the driven pulley to the driving pulley with the correct length of driving belts.
The number and type of belts must be calculated according to the power to be transferred to the rotary blades vacuum pump. When
this operation has been completed, the necessary guard must be installed to isolate the driving parts (pulleys and belts) and prevent
access to them by the operators.
- The best tension is the lower one where the belt doesn't slide under max loading condition
- Check frequently the tension during first 24/48 hours of running phase
- The over-tension reduces the life of belt and bearing
- Keep belts free from any material which may cause sliding
- Check periodically the transmission. Set it when sliding
To check the tension on a normal transmission, do what follows:
- measure the length of free stretch (t)
- In the middle of free stretch of the belt (t) apply a force(perpendicular to free stretch) nought to bend the belt 1.6 mm per 100
mm in length of the free. For example, the decline of a free stretch of 1000 mm is 16 mm.
- Compare the force you have applied and measured through a instrument with data stated under our table. If the force is
included between "minimum force" data, it means that the belt is not enough stretched. If the force exceeds "max force" data, it
means that the belt is too stretched.
However, a new transmission can be initially tensioned to twice the value of "min strength" to allow normal adjustment of
tension during operation.
3-D) To install the .../D version rotary blades vacuum pump, connect the cardan shaft at 1000 rpm of the tractor to the P.T.O. shaft
of the rotary blades vacuum pump.
Do not exceed the maximum slope permitted for the cardan shaft.
3-H ) To install the rotary blades vacuum pump version ... / H, it is necessary to fit a hydraulic motor (European unification flanging,
Group 3.5 FOR BALLAST 3500 - 4500 - 6000 - 7500 - 9000 - 11000 and Group 4 for BALLAST 13500-16000 on the PTO shaft
and secure it, using the relevant screws, to the holder located at the front.
3.4 HYDRAULIC DIAGRAM (version / H)
The hydraulic system required for operation of the rotary blades vacuum pump version / H is schematised in the version with uni-
and bi-directional motor shown below and the technical characteristics of the hydraulic motor in Table 1. Splining of the hydraulic
motor is of the type DIN 5482 - Z=23 for the BALLAST series 13500-16000 and of the type DIN 5482 - Z=20 for the series
BALLAST 3500 - 4500 - 6000 - 7500 - 9000 - 11000.
p. 38
Length of flexion
Force
Section
Min
Kg.
A
0.68
B
1.58
C
2.93
D
5.77
E
9.60
Max
Kg.
1.02
2.38
4.75
8.61
14.30