instruction manual
for use and maintenance of BLW series
3.2 - HYDRAULIC DIAGRAM OF BLW /H VACUUM/PRESSURE BLOWERS PUMP
The hydraulic system required to operate the BLW /H vacuum/pressure blowers pump is shown in the version with bidirectional
motor below and with the technical characteristics of the hydraulic motor in table 1.
Make sure that the direction of rotation is correct with the hydraulic circuit connections.
3.3 - FLEXIBLE COUPLING/HYDRAULIC MOTOR COUPLING
Insert the half-coupling on the shaft of the BLW and secure it with the grub screw on the tab.
Attention: do not use the hammer to insert the half-couplings, but use suitable insertion tools.
Insert the other half-coupling on the conical shaft of the hydraulic motor and fix with a nut and washer.
distance between the 2 half-couplings
3 mm
Alignment errors cause premature wear of the bearings and of the elastic connecting joint
page 36
HYDRAULIC SYSTEM DIAGRAM
WITH TWO-WAY ENGINE
Shaft
BLW
axial deviation
1 mm
1 Hydraulic pump
2 Over-pressure valve
3 Radiator
4 Oil filter
5 Oil tank
6 Hydraulic motor
7 Distributor
8 Drainage
Tapered shaft
hydraulic motor
radial deviation
0.13 mm
angular deviation
0.13 mm