Gardner Denver RBS 15, Service Manual And Parts List

Page: 43 / 62

6.2.2 V-belt drive coupling
Fix the blower to the base frame by means the fixing screws
Approach the electric motor by means of the suitable thrust screws
Install the V-belts
Produce belt tension by using the motor thrust screws in accordance with the values shown in the table
V-belt
profile
Force F
( daN )
Diameter D of smaller
pulley
( mm )
Deflection
E
( mm )
SPZ
XPZ
2.5
95
– 125
> 132
1.45
1.30
SPA
XPA
5.0
100
– 140
150
– 200
> 224
2.30
2.10
2.00
SPB
XPB
7.5
160
– 224
236
– 355
> 375
1.55
1.20
1.10
SPC
XPC
12.5
250
– 355
375 - 560
1.80
1.60
Fig. 50
NOTE: Check the tension of each V-belt, loading the V-belt with the force F indicated in the
table the deflection
e
must have the following value
e = I x E / 100
WARNING: Excessive belt tension could damage the blower and the motor
During this operation check the alignment of the V-belts using a scale as per figure 50
Fix the feet of the motor
WARNING: Check the V-belt tension after the first 8 hours of operation
e
F
I