PORT
α
α
1
α
α
1
• In order to achieve a uniform motion of the driven shaft, the
following requirements must be met (see Pic. 4.5):
- Equal working angle α and α1 of both couplings;
- The internal fork joints must be coplanar;
- Both driven and driving shafts must be coplanar.
Pic. 4.5
• It is also recommended working with limited articulated joint angles
(max 15° at 1000 rpm and max 11° at 1100 rpm) and disengaging the
transmission for those operations requiring great angles (steering or
lifting).
Follow the rotation direction as indicated on the
pump front conveyor protection. Follow the
instructions of the cardan shaft’s manufacture.
• Use the protection that comes with the Julia group shaft.
Use the cardan protection supplied with the
pump. The pump installation must fulfill the
current EC injury prevention specifications.
B) Belt drive
Pic. 4.6
• When using the belts and pulley, the pulley can be mounted
directly on the rotor shaft.
• Always use pulleys that are suitable to be installed on the shaft
end. Pulleys supplied by Jurop are strongly recommended. Look at the
parts breakdown at the end of this manual.
• Install the pulley, max. overhanging. L Max 20 mm.
• Max belt tension: 2500 N Max.
Model Max. Speed (rpm) T. max (N) L. max (mm) Pitch diameter (mm) Nr. Grooves Belts type
R 260 1300 2500 20 150 4 XPB
Pitch Diameter. min.: Minimum drive of pulley pitch diameter.
C) Hydraulic drive transmission
Model Displacement
Operating pressure
(max. vac.)
Flow
Max pressure
draining line
Max. pressure
motor exhaust
Max pressure
R 260 72 cc/rev 120 bar 100 l/min (1300rpm) 5 bar 5 bar 220 bar
(*) : Oil temperature, used in the main circuit.
• Fluid: mineral oil for hydraulic systems in compliance with
ISO/DIN.
Temperature Optimum viscosity ale Max. viscosity allowed
-20 / +80 °C 12 – 100 cSt 750 cSt
• Filtration: class 21/19/16 contamination according to ISO 4406 to
be obtained with a ßx = 75 filter.
• Check circuit connections: they must be applied in the same
rotation direction as that indicated by the arrow on the pump front
flange.
• Draining: connect directly to the tank above the maximum oil
level. Operating without draining line may damage the motor.
Pic. 4.7
• Distributor: open-centre distributor in central idle position
(vacuum pump off). It must be equipped with an adjustable
overpressure safety valve.
KEEP AXELS PARALLEL
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